Opa627 vs opa1612. 2012-12-11 7:18 am #11 2012-12-11 7:18 .

Opa627 vs opa1612 Yes, it's a very subjective question, so what I am looking is the highest class of sound -- In my opinion, also as said by Tangent, the openness and the cleaness of OPA627/37 put them into a higher league that OPA2604 and I will quote AI on this when asked for the choice between OPA1656 and OPA1612 for the XLR: 1. Link for opa1622 and opa1612 link I got this OpAmps more than year ago and still can't be trusted, but 1612 need soldering and SOP8 to DIP8 converter. 5. 3 KB · Views: 129 H. If you can afford it go 2 x OPA627’s on these adaptors, but make sure you get the OPA627’s from authorized Texas dealers, or 100% you will get fakes, and they are expensive. I have tried both with my Alessandro MS-2s and I strongly prefer the OPA627. OPA1612 OPA1642 AD8022 AD8066 LT1361 LT1364 Eliminated for various issues LT1469 - rather thin, very clean OPA627, OPA828. Dual customzied solution will give unmeasurable distortion (possibly -180db). You can go for something fancy on a budget as well discrete The OPA1602 and OPA1604 bipolar-input operational amplifiers achieve very low 2. Share Feb 10, 2023 at 10:03 AM. Just buy 1622 - it's way better for amplification and it's low risk to buy fake one. The OPA6x7 are useful in a broad range of precision and high-speed analog circuitry. AD also does a few interesting However they measure and perform worse than SOTA audio ICs like lme49720, opa1612, opa1656 etc. As Mark pointed out OPA1612 is a terrific sounding opamp and if you have problems with its bold mighty extreme low bass performance or with the extreme high resolution and OPA627—550ns to 0. Also comparisons of the OPA627 and OPA637 would be good. 8-nV/√ Hz noise density with an ultralow THD+N of –119. opa627 and opa604. I must experiment a bit more. GFI Synesthesia (and why the Zoom might just be better) OPA627 does not appear to be pin compatible with NE5532. designs and one of the boards I ordered (based on TI Tas5613) use two JRC NE5532 opa. DIY preamp design - gain topology, IC vs. 0. The OPA1612 has lower noise and distortion than OPA1656. Since they have identical response within the audioband, It is most likely that the standard ideal opamp should work well for audio active filters. I have a 1988 carver stereo per-amplifier. asc. TI has a new op amp, the OPA1611 & OPA1612. I swapped these for several different op amps including OPA1612, Burson V6 Vivid, and OPA627. vs Burson V6 Vivid. It seems the MUSES 8820 chip is pretty picky as to where you can put it in a circuit, or perhaps JRC have targeted it for specific applications - IMHO I can't see this chip easily displacing the LME49720 or the OPA627 for that matter; the LME49720 runs rings around it on price anyway – I ended up paying NZD$18. Joined Feb 19, 2019 So, did some research and ordered up OPA1612's with SOIC Adapters. All of the OPA627 but much smoother. I don't know what issues are impacting your existing op amp but what makes you believe the OPa627S won't suffer the same malady that afflicts the current op amp. 000. Home. The cost difference comes from the manufacturing processes involved - OPA627 requires an old process to be maintained, which has driven up the cost. Reactions: jokan. thuanth Posts: 5 Likes: 1 post Liked in: 0 post Joined: February 16th, 2018, 3:27 am Location: California Country: Top. These would toast It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 . After a certain minimum ~ around 20V/uS, it doesn't seem to matter and other factors greatly outweigh slew rate. I ripped out the el cheap RC4580 Op-Amps and replaced them with two OPA627’s per channel mounted on Brown Dog Adapter Boards. My scope is only accurate for comparing A vs B. The OPA1652 and OPA1654 op amps offer rail-to-rail output swing to within 800 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. However, it doesn’t sound like those two chips at all! It’s very musical imo. Must revisit the OPA627 cause its bite my be tamed by better power supplies / regs / decoupling Tubey, better late than never - I just replaced all NE5532 amps in Benchmark DAC1 with OPA1612 and play it so far for few hours. Its possibilities are based on a series of components that allow to offer a high-performance device at a reasonable price. Member; 19. common mode voltage that I've measured on any op amp. Hi Ervin, Yes those devices are very popular, unfortunately I don't have any way to know for sure when they are back in stock. I would use several thousand for one job, IF they were made This Bulbs & Tubes item by ComfortDomain has 3 favorites from Etsy shoppers. S. Isn't the OPA627 a single channel opamp vs the OPA1612 is dual (so you would need two 627s per OEM opamp replacement)? J. OPA627 vs. It was recently re-capped and all new guts put in . As much as I think that op amps do have a 'sound', in recent days I've been revisiting the LM4562 and sonically wise, to If you want a FET at all costs, you can try the OPA627 type. " So I'm always a bit skeptical of purely subjective tests, particularly on op amps. OPA1612 sounds better than any transistor preamp I've ever heard and better then my own 6N6P 2 case -no barrels hold- 36kg monster preamp with a 100% double blind test win rate. I hear OPA828 is the new version of the OPA627, so I may try that one out. rolled to Dual mono LT1028 DIP on brown dog 021001 adapter. any opinions if Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. I'm not necessarily advocating the Sparkos. Nevertheless, I congratulate you on your attempt to do Source: Linux Mint + EasyEffects + PipeWire + 192khz Upsampling Interface: Black Lion Audio 2x2 Revolution Speakers: Presonus Eris E8 Headphones: DT880 250ohm Tweaks: Topping HS01, Ifi AC Purifier, Ifi The OPA627 and OPA637 (OPA6x7) operational amplifiers (op amps) provide a new level of performance in a precision FET operational amplifier. Shinja. dorkus. Reactions: Euphonic_employee, Xulonn, Speedskater and 5 others. Out of all these, I will pick the Texas Instruments LME49990 X2 soldered on converter board (costs about 15$) as the chief competitor for V5i. Zen ? Thread starter dorkus; Start date 2001-06-16 7:57 pm; Status Not open for further replies. All three have excellent THD+N specs even into 32 ohm loads, and match or exceed the OPA627's THD+N at 600 ohms. I would say that chip amps are definitively op amps (simply in large packages), and one could argue that low Buy LC5 LC6 Low Noise Low Distortion Class Op Amp Upgrade Replace Muses02 OPA627 OPA1612 LME49720 at Aliexpress for . AD825 is a perfect choice, probably the best one. ti. Posted April 6, 2020. Addicted to music. Using hd600s and 400is to test them Ive compared the opa627 - 高音区较为亮丽、因为此运放转换率较高，解析力属于中等偏上，但声音有点飘忽，针点定位不稳定，有点空间感、稍有场管的味道，声音也不是太刺激，较为耐听。 opa1612（1611）失真极小，监听素质运放，声音中正，不偏不倚。 I was not able to find much differences vs the stock OPA1612 initially but as I spent more time with it the differences became more apparent. It has the most stable input capacitance vs. I'm using the OPA1612 dual opamp in a commercial design. Not familiar with modern devices so I would use old school OPA2134 or LM4562. To my ears OPA627 is a much preferable opamp to the LT1364. Now we're talking! Detail, soundstage, imaging, wow! Only downside is a definite reduction in midbass punch. . OPA627 but don't really have much concern for/belief in particular op amp's 'sound' once you get to OPA627 and OPA827, combining high speed with high dc precision and ac performance. NE5532 is a very good amplifier especially for the price ($0. OPA1612 is a great amplifier, however, it is bipolar (input type) and when used immediately at the front-end of a guitar input, the input current noise (1. Anyway, OPA2134 is pleasure sounding Op-Amp. Be mindful that the OPA2228 is a little unstable if the gain is lower than 5 with non-resistive loads but I seem to be able to use it to replace other opamps The qualities of this chip are exactly as I've heard described for OPA627 - very well controlled bass, with no treble harshness, resulting in a clean, dark sound. Joined 2008. Also, is CMOS opa1656 bad for headphone amp? Heard that opa1612 might be better for <600ohm. Im interested in op amp rolling for my amp since its not expensive to try out and I was surprised to find a lot of variation between them, the amp has a very simple circuit so my results could be more siginificant than with other amps. As mentioned previously the OPA2134 in BIFET is a decent performer. 2. The new OPA1622 delivers lowest distortion and noise, high linear output current, and low power, enabling the highest performance for professional and portable audio applications. Joined Jul Now that my son is well on his way to becoming an electronics engineer. It depends very much on the circuit if a faster OP can be used. The OPA627 was released in the 90s and we're still selling them in high volume. I use these amplifiers for pro audio. If there are more complicated parts (especially active parts) in the FB path, a faster OP can be a problem. While the OPA627 will certainly work in this application, you might also want to consider the OPA1612, OPA1622, or OPA1688 for the headphone driver. Headphone Amps (full-size) Thread starter FritzS; Start date Feb 25, 2005; Prev. I say hah every time I switched to OPA627, because I felt that the last bit of detail has just been released. What's new. Comparison: Compared to LME49990, OPA627, OPA209 & LME49710HA. A singers head is blown up to giant proportions. DIY electronics and audio projects – at a snail's pace! Search: Home; About me; Downloads; Links; Contact Me; and the prices are a small fraction of what you paid for top-of-the-range models such as the OPA627 and OPA2107 ten or fifteen years ago. When compared to the popular OPA111 Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136. Rp534. UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA. ChristianThomas. 300. (€20 DAC) vs a Thanks for the link. Newk Hi since end of the 90's the OPA627 has been a very good audio grade operational amplifier. Joined 2019. The NE5532 is, of course OPA1611, OPA1612 www. Has anyone tweaked it in amps, CD players and the like and give any feedback on the sound character of this OPA ? Thanks in advance . Joined 2004. 1-nV/√Hz and an extremely low distortion level of 0. Both (I believe have Fet-inputs) The two others are opa2107 and opa627. 0:00 opa8282:30 opa627プリアンプの初段のオペアンプの聴き比べです。人気があり、偽物まで存在するopa627と、その血統で最新型のopa828の比較です。 OPA627 is one of the best, much better compared to OPA604, 602 and 134. OPA627 is a single channel op amp. Bigbizkit. Listed on Nov 12, 2024 Greetings, I'm experimenting with few amp. 1; 2; First Prev 2 of 2 Go to page. (RL is the original 2kΩ. New posts Latest activity. Find more 502, 400103 and 4001 products. Jump to Latest dorkus. But that does not say anything about the SQ. It ensures a very low noise density of 1. For comparison reference, the waveforms of RRO type OPA1611, 1641, 1655, ADA4625-1, and non-RRO type OPA627, 827, LME49710, ADA4627-1 are attached. Members. It is more open sounding and clearer sound from OPA1612 then OPA2134. These op amps supply low offset voltage, low drift over temperature, low bias current, and low noise with only 60-nV RMS 0. Many people have already replaced 5534 with 627 in various applications and it seems to work well. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. This presented itself as a more refined and detailed version of the OPA2604. All five op amps have more than half the noise compared to the NJM4560. Heard it all here with different LS and poweramps. 1k Region: Australia The OPA1612 and OPA827 are much better than any of these but these are SOIC and you’ll need an adapter with experience soldering skills. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. Best regards! fpitas Master Contributor. Details; Discussions; Posts; This The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. X-fi Prelude' comparison a few threads down and I basically concluded from that the AD8620 might be considered better than the default LM4562. Since your L/R channels already feature the Oracle II 02cohesive overall sound, complementing the Oracle II op-amps. Joined Oct 29, 2015 44. This OPA provides very good electrical and audio performance. E-Stat Lunatic Member. 2001-06-16 7:57 pm #1 2001-06-16 7:57 pm #1 hi everyone, ok i know people have already asked all the questions i'm about to ask 0:00 OPA8283:00 OPA8276:00 OPA6279:00 MUSES05signal chain DENON DL301Ⅱ~[ OP-AMP phono-EQ ]~OPA1622 voltage follower~ZOOM H5OPA627は、高音質で有名なオペアンプです。 OPA827は Looking back at history, I have been discussing op-amps (and gain clones) in the chip amp section for 19 years. But I can totally see Discrete op-amps being rolled in. The OPA1642 is significantly inferior to the OPA1612 in many regards (GPW product, output drive, distortion vs output load, input voltage noise for example). And of course, OPA627 is a single while MUSES02 is a dual. I also ripped out the (assumed) 5% OPA1611 and OPA1612 (dual version) are great for low impedance microphone inputs (500 ohms and lower). Joined 2020. I know that implementation is important but for people that already have a DAC and are not designing it would be great to know. The OPA16xx op amp product numbers are specifically designed for high performance audio applications. Forums. OPA1612, OPA1643, OPA827, OPA627, OPA2107, THS4032, LME49720, NE5532, LT1028, OP275, others I can't remember now. Post #13 of 30 drewd Banned. Zombie. These op amps supply low offset voltage, low drift over temperature, low bias current, and low noise with only 60-nVRMS 0. As for OPA627 vs. พวก opa627 opa2134 muse01/02 muses8820 muses8920 lme49720 ne5532/34 OPA1612 VS MUSE02 ทั้งคู่เป็น BiPolar เหมือนกัน เสียงต่างกันไม่มากนัก OPA1612 เสียงจะสว่าง และ สะอาดกว่า ส่วน MUSE02 AkLIAM 1 Piece LC5 LC6 Low Noise Low Distortion Class A Discrete Op Amp Upgrade Replace Muses02 OPA627 OPA1612 LME49720. Harga AkLIAM LC5 LC6 Low Noise Low Distortion Class A Discrete Op Amp Upgrade Replace Muses02 OPA627 OPA1612 LME49720. OPA627 sounds simply free of any restraint It has the ultimate cleanness! Listening to it is a refreshing experience. Close to zero DC mv at its output would enable removal of the dreaded electrolytic coupling caps which will definitely lower colouration and improve sound quality. The clear winners for me are the 2227/8 but I think the 8 has a slight edge Well, listened again last night to AD8610 (unbiased) vs OPA627 (biased into Class A, 2mA, with a JFET) and there is a difference. The OPA627/637AP cost about $18/chip and you need 2. Choosing the right audio op amp in different contexts: Parts discussed in this thread: OPA167x, OPAx134, OPA165x, OPA1622, OPA160x, OPA1692, OPA1611, OPA1632, With so many different audio op amps ADA4627 designed as a 100% drop-in replacement of OPA627 ? I just recently ran over the ADA4627/37 again for a different purpose than Audio (optoelectronics frontend), but when I saw the large signal step response of the ADA4627 I had a deja vu. 1-Hz to 10-Hz noise. I also really liked the OPA627 that I had in an audio-gd dac years ago. Sounded like you had a cheap hobby, Motherone ! But i did read you first posting earlier, thank I've read about the 'Sondigo vs. Last edited: A comprehensive comparison between OPA1612 and OPA2156 (and other opamps) could be read here: Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. In addition to a volume control by rotary potentiometer, this preamplifier offers a triple tone control. Listed on Nov 12, 2024 opa627_vs_ideal_opamp_mod. Beli Opa627 terlengkap harga murah Januari 2025 di Tokopedia! ∙ Promo Pengguna Baru ∙ Kurir Instan ∙ Bebas Ongkir ∙ Cicilan 0%. The OPA627 BP has been used and tested in my preamp very successfully over the past few years and has been confirmed by the manufacturer A fair question! And although I was the product definer and systems lead for this part, I don't get 100% control over the marketing folks 😉 But, I can honestly say that when we started working on this part about a year ago, I was very adamant that I didn't want to create a part with excellent specs but terrible sound quality in the real world. The OPA627 opamp The OPA627 from Burr-Brown is a laser-trimmed JFET input opamp with excellent DC precision; the input offset voltage being typically ±100 μV. Post #7,248 of 7,423 povidlo 1000+ Head-Fier. OPA627 & OPA637 are only moderately fast opamps: OPA627 = 55V/uS OPA637 = 135V/uS in contrast a LT1364 is rated at 1000V/uS Slew rate doesn't tell everything. I preferred the Sparkos for having the smoothest and most natural treble without loss of detail. I do think Recently I reviewed the Nord Three SE 1ET400A Dual Mono Stereo Amplifier. OPA604 vs. Reactions: andyjevans. It is very smooth indeed but it feels like the soundstage is blown up like a balloon. Customer Reviews (126) 5. Harga IBStore OPA627BP OPA627 Op Amp Single Low Offset Voltage Amplifier. BURR BROWN OPA627 Dual OPA with Support (Unit) Ref : 8434. Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return. (Which might seem obvious but some people seem to miss it anyway. Tangent didn't mention AD826 and LT1364, which are my best choices. Op amps do differ in their It seems that most feel that the OPA627 is the favoured choice for I/V use, if one must use an opamp, the important specs for i/v seem to be the following. Joined Feb 22, 2022 Messages 32 Likes 4. Jan 11, 2016 The dual version of the OPA1641 is an OPA1642, but I'm confused as I believe that neither the Burson nor the OPA627 are duals. JoeSVK Member. theslowdiyer. Detail / space but it BITES after long periods. 2012-12-11 7:18 am #11 2012-12-11 7:18 Part Number: OPA2134 Other Parts Discussed in Thread: OPA1678, OPA1611, OPA1602, OPA1642 Hi there probaly a simple question maybe not. 5 mA/channel, typical. Joined Jul 7, 2022 Messages 9,885 Likes 14,414 The OPA627 is mainly good for very low input bias - usually no need for this with audio. 5). This article offers a comprehensive exploration of these differences, providing valuable insights for optimizing their OPA1612 AD797BRZ Dual OPA627 (can version) and any other worthy opamps out there. A few of these opamps (LM4562, OIPA 2134) and many more (LM741, NE5532/5534, AD797, OP27, OP270, OP275, TL072, TL052, OPA604, OPA627) have been tested by Douglas Self in inverting and non-inverting configuration, see chapter 4 of his book Small Signal Audio Design. AD825, OPA275, OPA2604, OPA2132, OPA2134, OPA211/2211, OPA1612, OPA1642, OPA2107, OPA249, NE5532 OPA1611, OPA1612 www. In Stock . AD797 vs OPA627 Update Time: Oct 05, 2023 Readership: 4560. However typical Buggle2 Riaa board. Donations. The OPA827 is perhaps the most transparent Fet OP AMP ever. The Zoom MS70-CDR vs. The single of the OPA1612 is the OPA1611. New posts Search forums. It is possible that the noise floor of the DAC has increased from my changes (but the signal level is 4x higher so it would have to increase more than 4x to hurt). I will have a pair of DT-770-250s by Tuesday. com SBOS450C –JULY 2009–REVISED AUGUST 2014 5 Pin Configuration and Functions D Package OPA1611, SOIC-8 D Package (Top View) OPA1612, SOIC-8 (Top View) DRG Package OPA1612, SON-8 (Top View) (1) NC denotes no internal connection. Mids presented in fairly neutral and no coloration. When compared to the popular OPA111 The OPA1641 would be slightly better. Yes it destroyed many many extreme expensive commercial OPA627 (-120 dB, 2nd & 3rd @ -7980 dB) OPA827 (-120 dB, 3rd @ -86 dB) Not sure it worth the trouble and price difference vs. It will take on the coloration of what precedes it- etc. Michelag. com OPA1612, MUSES8820, OPA1692, LME49723 and the NJM8801. Inside CD/DVDs most manufacturer uses M4580 OP-Amps but when it change to OPA1612, any CD/DVD start In SMT the OPA1612, rated at 40V absolute maximum, is a very good part. AD844 is a super choice for some applications, do not forget that it is a CFB (current feedback) amp, inverting circuit with any gain or noninverting of G>+10 is perfect. Last edited: Feb 8, 2023. I wanted to know but I believe people rank it keeping either AD815 or OPA627 as top ranked but i think we need to rank something in second or third as well. Home > Blogs > Transistor > AD797 vs OPA627. 2 dB at 1 kHz, while driving a 32-Ω load at 100-mW output power. Thanks Do . 0:00 opa8272:30 opa627プリアンプの初段のオペアンプの聴き比べです。人気があり、偽物まで存在するopa627と、そっくりな音のopa827の比較です。opa827が High end OP's - LM6171 vs. Joined 2002. Joined Apr 26, 2004 Posts 727 Likes 10. So putting a military grade with slightly I have OPA627's on a Stokes SDS class A headphone amplifier, before those i tried lower priced opamps. 5nV/√ Hz noise density with an ultralow distortion of 0. The OPAx828 operate over a wide supply-voltage range of ±4 V to ±18 V and a supply current of 5. Even better, try the OK i've been testing the OPA2227, OPA2228, OPA2134, OPA1612, and the Muses 02. The OPA1602 and OPA1604 series of op amps offer rail-to-rail output swing to within 600mV with 2kΩ load, which increases headroom and maximizes dynamic range. Harmonic distortion <0. The OPA627 is, without doubt, a superb audio op amp. We have begun contemplating the removal of every OPA1612 from The Magni+ Heretic and replacing them with Dip8 sockets. I don't care about listening tests or something else, just want to use the technical better one in my amp. Thanks in advance. When we developed the OPA1656, this was also a major design target for us, and the designer and myself spent quite awhile in the lab with previous CMOS audio op amps (specifically OPA1652 and OPA1688) hunting for Other cheap ones on my radar - OPA2134PA, OPA1612, LM4562NA. I currently use the OPA627. This op amps offer rail-to-rail output swing to within 200 mV of the power supplies with a 2-kΩ load, which increases headroom and maximizes dynamic range. I would like to see these parts offered in a DIP package to replace the OPA2134PA. OPA627 sound very different to OPA1612) and speakers. Need to keep in mind the supply voltage and current draw. 1-nV/√Hz as well as an extremely low distortion The OPA627 and OPA637 (OPA6x7) operational amplifiers (op amps) provide a new level of performance in a precision FET operational amplifier. I have other products of similar age that are still ramping up It uses OPA627 and BUF634. The owner The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. OPA627—550ns to 0. by amb » January 27th, 2024, 10:37 pm . Each sounded different, but it is difficult to pick the best. Originally we intend to upgrade it with opa2353, but apparently it wouldn't work due to this op using single 5v power supply. I can test the OPA627,637 and 2227 in my Pimeta if you want. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. All other op-amps I tested had a slight ‘veil’ or a curtain of The OPA828 and OPA2828 ( OPAx828) JFET input operational amplifiers are the next generation OPA627 and OPA827, combining high speed with high dc precision and ac performance. Ships from Hong Kong. That unit came with the Sonic Imagery's 990ENH discrete operational amplifier ("opamp") in the buffer stage (pre-amplifier). Quote: Originally Posted by DCameronMauch Having read so many of these opamp subjective comparisons, this is what it has boiled down to for me: This Bulbs & Tubes item by ComfortDomain has 3 favorites from Etsy shoppers. 5 nV/vHz at 10 kHz but they are pricy (€40/pc) ! They are still manufactured and available. The noise was marginally higher, but still very low Posts about opa1612 written by theslowdiyer. 121. All from verified purchases. Last edited: Jun 18, 2021. AskEngineers is a forum for questions about the technologies, standards, and processes used to design & build these systems, as well as for questions about the engineering profession and its many disciplines. Equipment Forums. Reactions: cestmoi. Find more 44, 200333149 and 100000306 products. I'll look at it if you know of one amp using OPA1612 sounding audibly better than another amp using cheaper op amp in objective listening comparison. While they share several similarities, their design and performance aspects position them for different applications. I even notice a difference between AP and BP versions of the OPA627 on the SDS. Engineers apply the knowledge of math & science to design and manufacture maintainable systems used to solve specific problems. you have to decide which things are more subjective vs objective, but I find the list of op OPA828 / OPA2828 vs OPA627. Images show OPA627, Burson V5 and Buson V6 Classic op-amps and their relative size and Cyenne Dac 3100 with OPA627 and two V6 Classic op-amps in sockets. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. Don't go for 1612 it's a more chance to get fake. ADI 825 or any AD SMSL SU-10 vs M500 MKIII vs DO300 21 vs 9 vs 11 dual op-amps OPA1612 (accoring to the spec from smsl-audio) What is the Op-amps doing in that? M500 SINAD Reviews. Much better. Color: LC6. That said, a few people consder the OPA637 an 'upgrade' from the AD8620. 2024-07-15 2:14 am #101 2024-07-15 2:14 am #101 That's why my design (white/ gold) has the thermal pad underneath The OPA1652 (dual) and OPA1654 (quad) FET-input operational amplifiers achieve a low 4. 0 126 Reviews ౹ 338 sold. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. Most of the differences look to be in the input voltage nose and open-loop voltage gain. I was just wondering if some better alternative (price does not matter) has come along the last decade ? Other chips to consider are the AD825 or OPA627, you'll need pairs and an adapter board. OPA828 / OPA2828 vs OPA627 Thread starter mudihan; Start date 2023-06-08 2:24 pm; Prev. it's not the OPA1642, it's the TPA6120A2 vs OPA2134, which one is better for audio, which has better quality, thanks. Like Reply. 00005% at 1 kHz. Pin can be left floating or connected to any voltage between (V–) and (V+). Joined 2001. The AD chips I have tried (AD823 and AD8620) have tended to be brighter sounding with less detail and soundstage, but more forgiving of recording artifacts and problems in the source. 2003-01-06 11:45 pm #3 2003-01-06 11:45 pm #3 I´m using exactly the headphone amplifier from the BUF-634 datasheet with an OPA627 (oh, are those samples for me). OPA627, OPA637 SBOS165B – SEPTEMBER 2000 – REVISED APRIL 2024 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. For one thing, it's relatively expensive against the integrates, though much cheaper than the Burson. opa627 chips should measure roughly 48kohms to 56kohms both ways across pins 1 and 5 and should draw about 7 to 7. /Peter . I don't know about compared to that AD opamp, but the OPA627 is a dark-sounding opamp with incredible detail and a very nice soundstage. It is musical and balanced, but in front of OPA627, I found it to be slightly congested. However, there is a difference from rail-to-rail OP-AMPs. Certainly use a socket for opamp rolling. Low output current would mean the transimpedance gain of the I/V circuit will be high, and the input current noise of the op amp will be a significant contributor. M. May 2, 2022 #186 wallaceho said: Hi guys, I also purchased this set with Lead Audio's linear power supply too. I can cite many cases, however, where an added "something" that does not belong in the signal is perceived as "better sounding. Low- and Mid-Frequency Test Signals for Evaluation of Room Modes // Measurements: ESS Hump revisited // Humpify -- apply "ESS hump"-style distortions to audio files. It is on the mid-range. georgehifi. Post #16 of 26 Sovkiller Proved that despite its huge size the CD3000 can be shoved down one's throat. Z. 2-nV/√ Hz noise density and distortion of –127 dB at 1 kHz. ) Compared to OPA627 and OPA827, OPA828 has improved headroom. The OPA1641 would be slightly better. In my case compared to OPA1656, OPA1612, Muses 8820 and some other cheaper op-amps - V6 added more quality in every aspect: Bass became more pronounced, Vocals became more detailed and The Audiophonics OPA1612 operational amplifier is based on an authentic Texas Instrument 1612 chip. Any other direct replacement with I settled on the Sparkos SS3602 versus several others including the OPA1612, the classic audiophile favorite, OPA627, and Burson V6 Vivid. Customer Reviews (126) Specifications Description Store More to love . joensd. Specs: Very Low Noise: 4. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. I also refurbish large format recording consoles. They sound nothing at all like the old OPA627. 1 Go to page. At least, that's my understanding. The BA is only an indication of "grade" for certain tolerances for optimal conditions for use. HiFiNutNut. OPA627/37 I tried both OPA627 and OPA637 in this circuit, and both were pretty much the same because of the low gain setting of the feedback resistor. The AD797 and OPA627 are both high-performance There is a nice Teardown of a real vs fake OPA627 on the webs. The OPAx828 operate over a wide supply-voltage OPA1612 is one the most low-noise opamps ever built, so totally recommended for unity-gain stages (LPF or output stage of a DAC, but also I/V stage too). 00003% at 1kHz. The other consideration is the voltage rating of the caps, if your op amps are running at 12v + & - or 15v + & -, then you need to have 35v or higher caps, if you After using the 8610s the OPA627/637's sound thick, muddy, and flat. Help! An OPA1612 has slightly better specs than an LM4562---less noise and distortion, faster, and more output voltage swing. Joined 2006. 1-nV/√ Hz noise density with an ultralow distortion of 0. When compared to the popular OPA111 The AD797 and OPA627 are highly regarded operational amplifiers (op-amps), acknowledged for their exceptional precision and low noise characteristics. Only THS4031 was ruled out. Share Jul 20, 2004 at 2:17 AM. Jan 7, 2020 #16 For a DAC chip with a low output current, I would suggest op amps with FET type inputs, either JFETs or CMOS. 01% OPA637—450ns to 0. Currently, I require opamps in the DIP package. The best specification dual op amp you can buy. 000015% at 1kHz. Re: OPA1656 instead of OPA1612. 01% LOW VOS: 100µV max LOW DRIFT: 0. The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. discrete, OPA627 vs. the very low noise opa627 and 637 are hard to beat but were $20 last time I looked ;(Logged current github: https audiophile, but the tangentsoft guy does do real engineering work. 00 each for the MUSES 8820 chips! opa627 opa827 opa828, LT1028 diaudio the form of these opamps is being talked about a lot and is being called very good I wonder if they can be superior, livelier, warmer than muses03? OPA1612 piece=5 original OPA2134 piece=5 original LM4562 piece=5 original LME49720 piece=6 original The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2. Texas Instruments (TI) introduced the newest addition to the company’s Burr-Brown Audio line, a next generation of the widely adopted OPA1612 audio operational amplifier (op amp). Compare the datasheets. Noise and distortion wise OPA1641 or OPA827 perform better. Overall, don't recommend opamp rolling. 000015% at 1 kHz. I do hear a difference between two different Burr Brown numbers. When compared to the popular OPA111 op amp, the OPA6x7 have lower noise, lower offset voltage, and higher speed. 7. Sound Characteristics: OPA1656: The OPA1656 has a slightly warmer and more musical sound compared to the OPA1612. When we developed the OPA1656, this was also a major design target for us, and the designer and myself spent quite awhile in the lab with previous CMOS audio op amps (specifically OPA1652 and OPA1688) hunting for and after the Muses opamps, the most expensive Opa627 - Opa637 comes in these opamps are very slightly cheaper than the Muses opamps, my favorite opampsMuses 03 Opa1656 Opa1612 Op 828 Opa627 Ad8066 Opa2134 Lme49720 Lt1028, i am also making dip8 adapters to run the opamps in parallel and conducting experiments on running the opamps in OPA627, OPA637 SBOS165B – SEPTEMBER 2000 – REVISED APRIL 2024 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. According to the datasheet, TI lists: BM, BP, SM, AM, AP, and AU grades. jokan Addicted to Fun and Learning. ) The OPA1612 is very detailed and quite clinical sounding. 7 pA/rthz) will multiply with the pickup resistance (varies quite a bit, say typical is 10 kOhm) to become the ，拆解丹拿BM6A监听音箱，更换打磨运放5532改为49720。，被烧友捧上神坛的MUSE02运放，真的值300元么？NE5532还有胜算么，常见VS冷门VS贵价，一起聆听三种运放在这部小解码器上的音色表 Previously i used OPA2134 Op-Amps in my DIY project and CD/DVD modification and after abou year ago i start to use OPA1612. Review Index. 4; 5; 6; First Prev 6 of 6 Go to page. 1nV/root Hz at 1kHz with a 10Hz 1/f corner and will cheerfully drive 600 ohms. 5-nV/√ Hz noise density with an ultra-low distortion of 0. E. OPA627 mid-range, especially for the vocals From all of those and the ones I have tried in my PPA I would only choose the OPA627 for the ground channel, (not for the L and R) and the OPA637 for the L and R, the rest will sound inferior IMHO, of course I'm talking in my PPA, in any other application probably they will sound different, some of them better, some others more warm or bright, depending of what According to the TI datasheets OPA1612 has less noise than OPA1656. I don't have to tell you the doors this would open up Well maybe I do. 022uf film foil were only caps in audio path she picked the opa1612 from ne5532 the opa1656 1pcs opa1612aidr opa1612a opa1612 sop-8 opa627au sop opa627 opa627a 627au ic OPA627—550ns to 0. C. Contents AD797 Description AD797 Specification OPA627 Description OPA627 Specification AD797 vs OPA627 (User’s Reviews) AD797 vs OPA627 (General Comparison) Final Words. Member. J. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. I have one in a Aiyima a3 Tube preamp together with dual OPA627 and Voshod J6 tubes. Thread Starter. OP Amp Rolling: the Philips CD753 (aka Marantz CD5000) with MUSES8820 vs OPA1692 vs LME49723 and Others - an article by Paul Hunting on TNT-Audio, Internet HiFi magazine, www. NE5532 can be configured at +/-20Vdc, drawing about 8mA. The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 ideal for use in portable-audio G'day all, I guess that this sounds suspiciously like the subject of 'op amp rolling, but actually it isn't. Feb 27, 2005 at 9:28 PM. In exchange for two Burson Classic dual op-amps I writing Buy AkLIAM 1 Piece LC5 LC6 Low Noise Low Distortion Class A Discrete Op Amp Upgrade Replace Muses02 OPA627 OPA1612 LME49720 at Aliexpress for . the AD797, but still worth a check for DIY-ers. Great to impress, not so good to live with. 1 Addicted to music. Dual mono OPA627 soic on Gigaworks adapter. OPA627, and Burson V6 Vivid. My phono preamp, bye the way, uses OPA1611/1612 and OPA1641/1642s- amongst others. MUSES8820 is the best, IMHO. I know OPA627 is 1029 less than OPA 1656 Search for it on google for OPA627 and OPA1655! for 5534 replace No one can tell you the difference between an OPA1655 and an OPA1611 in a Wiim. 15ppm, intermodulation way below that, 1. OPA827. The AD8610 seems to present a more open window, especially in the highs, on music, transients and realism of highs being enhanced. 2013-09-12 9:43 am #3 2013-09-12 9:43 am #3 Dale, To me To you Thank you wholeheartedly Bill PS. org. Jump to Latest Z. tnt-audio. the general sound is now more relaxed, has a bigger sound in the basses, the transients and the high tends to be less harsh. The AD797 was a response to the popular Opa627. Should I expect any improvement from the OPA1612? Thanks. I had read it many times before posting this threat. Low notes produced by bass are definitely clearer in sounding; this detail was somehow unheard at OPA627. The LME49723, Single circuit op amp, AD797, LME49990, LME49710, OPA627 etc: Don't forget if you are using polarized caps the usual convention applies, positive to positive and negative to negative. PS: for the weight, it's less important on a DAC as the main weight difference will come from enclosure (steel vs aluminium) but I understand your voltage issue. OPA1612 (soic on dil adapter board), bi-polar from input to output, again a very good opamp, which to me "sounds more balanced" top to bottom than the LME, it is just as dynamic, but just a little less obvious in the bass Continue to this OPA627 op-amps, I was quite shocked that the OPA627 can deliver better sound quality than OPA1622 in one specific music aspect. It has a more forward presentation, with a much wider soundstage. The OPA1642, SMT-only, is also a good dual BIFET. The V6 Vivid has a faster attack than the classic, but still not quite as fast as the SS360x which allows the SS360x to wring out just slightly more detail than the Vivids. opa627 The OPA627 has a large distortion component (yellow) and protrudes from the screen of the scope, so the range is changed from 100mV/div to 200mV/div. 2024-11-12 9:34 am #15 2024-11-12 9:34 am This will kind of be a comparison of the OPA1612 to the Burson V5i. i will second the notion of the opa1612 being audibly superior to the ne5532 its a huge difference my daughter who patiently sat through almost 2 hours o bling listening tests on 3 upgraded cd players a nad 546bee with foil film coupling caps and 50 volt 100uf muse bipolar and wima fkp3 . One other very noteworthy difference is the Vivid has a strong attack, but loses a bit on the decay so sustain is better on the SS360x. The yellow waveform is therefore 100 µ/div. It provides a very low noise density of 1. Go. Transients are stronger, both rimshots of snare drum and big-band trumpets. 5 mA quiescent current. Joined Jun 2, 2020 Posts 1,367 I preffered the dual opa627 to it in my Aune X8 even though that is leaning a bit too much towards the high end The OPA169x operational amplifiers achieve a new level of performance for low-power amplifiers with a low 4. The OPA637 does sound faster, but the OPA627 sounds more natural. The OPA1642 has the JFET input stage- thus reducing the input current noise- reduced common mode input distortion and sensitivity to source impedances, and lower standing current going for it, so in Here’s a great article comparing opa2156 CMO vs opa1612. Even AD797 or OP627 cant hold a candle vs OPA1612 in terms of SQ - the difference is HUGE! My preamp sounds best with OPA1612 for gain and OPA2192 as buffer. There are a couple of ebay vendors (audjade_chn and hifi-szjxic, no affilation beyond satisfied repeat customer) that sell genuine salvaged chips at very reasonable prices. 8µV/°C max LOW IB: 5pA max OPA627: Unity-Gain Stable OPA637: Stable in Gain ≥ 5 OPA627 OPA637 DESCRIPTION The OPA627 and OPA637 Difet operational amplifi-ers provide a new level of performance in a precision FET op amp. You should be able to find single-to-dual DIP8 adapters for mounting 2xAD797 on a DIP8 socket. I would say though that on some CD's it can come across as a bit bright. I use OPA1612. ZestClub. ptkuy vtimth bluih qcv got yxncgw prtwqqkc jsdzjz ffy ieoo