hd audio opamp

HD Audio Opamp

http://bursonaudio.com/DIY_HD_Opamp.htm[2013/6/18 11:36:08]

About Us | Creations | Upgrades| Downloads | Retailers | Friends

ReviewsHD Audio Opamp review by AudioExpress Magzine

HD Audio Opamp review by PC Tuner (English Version)

HD Audio Opamp review by PC Tuner (Italian Version)

HD Audio Opamp review by TNT Audio (English Version)

HD Audio Opamp review by TNT Audio (Italian Version)

HD Audio Opamp & Booster review by Maestro Israel Yinon

HD Audio Opamp review by Chad Kelly (Presounds Audio)

Related MaterialBurson Audio HD Opamp 101

"Burson discrete op-amp gets rid of this effect to the point I foundmyself easily transported into the music with relaxed neck muscles."

Click here to read the full review

Installing HD Audio Opamp In Less Than 5 Mins (Video)

HD Audio Opamp


Intro

The second generation of HD Audio Opamps was developed in collaboration with some of the world's most passionate musicians, sound engineers andrecording artists. This project has taken two years to complete, with an end result reaching beyond our greatest expectations of musical reproduction.Its qualities have been pushed to the very frontier of studio technology. Like a photographer's latest favourite lens, it is being utilized by recordingartists around the world, to better capture the moments that last for an eternity

The Angry Realization

The function of Opamps at the output stage is as important as the lens on a cinemaprojector. Regardless of the analytical capability of the audio gear, an inferior opamp willhalve a machine's performance, and distort every dB of sonic imagery.

For fellow audio enthusiasts; there inevitably comes a time to explore opamp upgradesfor their equipment. After hopping from forum to forum, and checking every pricelist, it'sall too easy to become confused with the subsequent findings. That humble pair of ICopamps in their machine is worth less than a can of coca-cola. Replacing them withanother pair of IC opamps, worth a little less than a McDonalds burger, will noticeablyimprove the overall performance of their mega dollar machines.

One question then burns in the minds of such audio enthusiast;

How could the manufacturer's, with their respectable brand, history, and self proclaimedteam of world leading audio scientists, not know that a simple opamp switch could liftthe performance of their product? Why wouldn't they have adopted "that" opampinitially, when their production costs would be increased by only 1%.

Then comes the incredibly infuriating realisation that the manufacturers would have known this all along! Unfortunately however, their focus is solelyon profit. Even after pricing the machine with a large profit margin, a profit driven manufacturer will never hesitate to continually lower theirproduction cost at the expense of quality sounding music! Then, after paying a very high price for what is presumably a respectable piece ofequipment, a passionate audio enthusiast still has to risk it all by tweaking their machine with a soldiering iron.

It may be true that we live in a profit driven world now, but when the promise of a high calibre sound system falls short, and excellent sound qualitymusic is the victim, it still angers us all!

The Whole Truth

Unfortunately, that is not the whole truth. The whole truth about IC opamps is thatthey are in that machine for one reason and one reason only. It is simply a costsaving exercise at the expense of high calibre sounding music!

ICs are cheap and sticking an IC opamp onto a PCB simplifies the entire design,assembly and quality control process. However, IC opamps have countless faults thatmake them unsuitable for audio application. Below are just some of them.

IC Opamps are not designed with a focus on Audio.IC opamps are highly inconsistent in quality:IC opamps are poorly conducted and degrade the musical signal at all levelsIC opamps suffer from EMI noise

For a more in-depth review on this issue please read "IC Chip Not Good for Audio"

Burson HD Audio Opamps

We at Burson Audio have realised the inferior quality of IC Opamps for quite sometime.

We love music and it's always been our philosophy to enhance sound qualitywherever possible. We're aware that the only way to overcome the IC opamp

HD Audio Opamp


problem, is to replace them with a well designed discrete circuitry.

Building Of HD Audio Opamp

The team at Burson Audio has been developing the HD Audio Opamp project for anumber of years now. From the first version to the current production, improvementhas been made along the way, as part of the quest for perfection.

The foundation of the HD Audio Opamp is a sophisticated Voltage DifferentialAmplification network. The entire opamp is constructed from audio gradedtransistors and resistors. Such a design will ensure minimal colouration and maximumdynamics, but this design feature also posed a great challenge to production; withoutrigid component matching, it would be easy for sonic imbalance to occur.

We only use a 1% tolerant resistor. Before soldering them onto the PCB, we put themthrough a component burn-in module. After 50 hours of burn-in, each resistor willthen be retested and matched before proceeding to our assembly line. The result ofsuch a quality control process, is a further 10% of component rejection. This strictand very expensive BURN and MATCH process ensures the stability of the circuit. Itensures a perfect balance of sonic imagery across the entire frequency spectrum. Italso guarantees a stable and realistic sound stage between the speakers.

Furthermore we insisted on a top quality lead free solder and temperature controlledsoldering process. This was the only solution to reducing heat stress on our components, and minimising short circuits caused by a soldering bath usedin large-scale production.

Cost focused manufacturers would never adopt such an approach due to the significant increase in production costs. Burson Audio on the other handknows that only our level of quality control can produce opamps worthy of our badge. Only our level of quality control can produce the best Opamp inthe market.

Sonic Quality

To Team Burson, listening to an IC opamp is like listening to a grandconcert through a key-hole, or admiring Mona Lisa on a stamp!

The resolution and texture of our Burson HDAO completely surpasses ICopamps. Compared with any IC opamps, it provides a fuller texture withmore refined detail. At the same time the bass is well controlled and very

HD Audio Opamp


punchy. Double bass can now clearly take shape on a very three-dimensional sound stage. Classical music reproduction becomes muchmore realistic where the string section becomes a group of individualmusicians rather than just a group. All in all the Burson Discrete Op-ampis a very listenable and engaging performer. It will bring pure music toyour soul, without listening fatigue to your ears.

Will HD Audio Opamp Work For You?

It is easy to find out if the Discrete Op-amp will work for you. Just openup your CD player or DAC and locate the analog RCA output (where you

plug your interconnection cable). You should see one pair or more of the standard Opamps.

Take down the model number and compare it to our list. If you find your Opamp on the list, then the Burson Discrete Op-amp will work for you!

Direct Replacement For The Following Opamps

Dual Op-amps: AD8066, AD8620, AD712, AD827, C4570, JRC4580, JRC5532, JRC5532D, JRC5534, LF353, LM4562, LM833N, NE5532, NEC4520,NEC4570, NJM2068D, NJM2114, NJM2214D, NJM4558, NJM4558D, NJM4560, NJM5532, NJM4558P, OP275, OPA2132, OPA2134, OPA2604, RC4558D,RC4558P, TL052, TL072

Single Op-amps: NE5534, LT1122, OPA627, AD811, AD844, OPA604, AD8610,& etc.

Drop us an email if your opamp is not listed above.

Order From Us

Your order will be sent via Internaitonal Air Mail unless advice otherwise with 7 -10 days transit to most major cities.

Please provide your contact phone number and email address during your Paypal payment so we can update you with your shipping status andcontact you if there is any problem with your order.

Connection Type Dual Opamp Single Opamp

HD Opamp Option

Dual OPA Fly Lead $135.00 AUD

Standard FlyLead (5 cm)

8 Pin DIP socket

(Great for plugand playupgrade)

HD Audio Opamp


Soft CableExtension (10cm)

If you are ordering more then 1 pair of Opamps please send in your order to us at: [email protected]

How To Install The Discrete Op-Amp?

111 Record the direction of the IC-opamp. (where the half moon chip is pointing)111 De-solder the existing Op-amps and replace them with the HD Audio Opamp (same direction).111 100 hours of burn-in, then enjoy the music!

Please visit our Blog look under "Tweaks" for more tips and tricks for installing our opamps.

Specifications

Working voltage: +/-12-25v DCCurrent Draw: 19mA (each module)THD: Less than 0.0007%Dimensions: 39mm x 10mm x 29mm, (single) 39mm x 23mm x 29mm (double)Weight: 19g

Disclaimer: Each module is individually tested before dispatch. However, incorrect installation of the product will risk damaging the CD player. We arenot responsible for any damages incurred from the installation of this module. If you are not confident with soldering please contact one of ourauthorised installed / retailer for assistant.

HD Opamp Review & Feedbacks

Music Hall Dac25.3 upgrade with Burson HD opamps By John S.

I'm delighted with your opamps which I installed today in my Music Hall Dac25.3 John.

Oppo BDP-95 upgrade with Burson HD opamp feedback by Umberto..."So now I have my "new" Oppo BDP-95, and even if it has a few hours of burn in, just now it is wonderfull, a big step forward from the originalversion"... Thanks, Umberto Update: After 50 hours of burn-in I can say that now Oppo sound very very good, everything is improved, transparency,details, but most of all soundstage, now is more big and deep. I think that now I can compared Oppo with the top dedicated cd player. Next days I willmake a test compared Oppo with top ...

Onix XCD88 upgrade with Burson Low jitter clock & Dual Opamps by James L.I tied the clock power source into the 15V (LM7815) regulator. This worked well, for power, as well as the clock seems to regulate down to 15v so I

HD Audio Opamp


suspect that why it's built in regulator is barely warm vs hot. The opamps installed well onto the board vertically, *just* enough room to clear thecover (about 3mm of space). They seem to run rather warm though, not sure if this is normal. I had opa627's dogged in a socket before, and I had toremove the socket to clear the ...

Xiang Sheng DAC-02A upgrade with Burson HD opamps feedback by CtMonz monz

I bought Burson HD Audio Opamp type : standard fly lead. Replaced Opa627au*2 in XiangSheng DAC-02A upgraded with little mod cap and tube. First listen was amazed and excited. I t's sound next step from any opamps. I can listen anykind of music without hiss or noisy. Everything are improved and more audiophile. I'm very impressed !!! CtMonz monz

Marantz CD72 HD Opamp mod with sample trackGood Day mates! I have installed your legendary HD opamps into my good old Marantz CD72. And the result is amazing! Instead of describing to youhow it transformed the CD72, I have decided to share with you 2 audio files. Recorded into my Mac via Griffin iMic, (96khz) I have firstly recorded asection of Jean Sidwell?s San Francisco with OPA627 in the Marantz. Then I have recorded the same section with the Burson opamps in the player. ICopamp sample HD opamp sample You folks...

Asus Essence STX upgrade with Burson HD opamps by Andrea M.The sound card is mounted vertically in a HTPC ATX case, all the available height is occupied. To his left, a low profile TV tuner card. In the pictureyou see, at left, the three original IC dual op-amps: for the left channel, the right channel (top left) and the buffer (center left); you have to removethe EMI shield (secured with four screws). The next photo shows the installation of the new HD Audio op-amps by Burson. The operation of insertionand removal is easy with fly lead Standard v...

AudioTrak Prodigy 7.1e X-fi upgrade with Burson HD opamps by Haido

Very good musical improvement, even without complete burn in it sound betterthan my prev opamp. Worthed for diy part upgrade =) Haido.

Audiotrak ImAmp mod with Burson HD opamp by Albert T.Before the upgrade, in my opinion the Imamp was not exciting. It was ok/decent, but after the upgrade, it's really exciting and some music detail thatI never noticed before now is noticable. Btw, my source of music is Asus Xonar Essence STX (set to 24-bit, 44.1KHz). I'm using QED cable (50 cm) tohook the Xonar to Imamp, I don't remember which QED model (the purple one as you can see on the Imamp03.jpg), it's an old model I think since Ibought it several years ago. For the software player,...

Advance Acoustic MCD 203 upgrade with Burson HD opamp feedback by Lucio A.

HD Audio Opamp


I have installed already your opamp in my Advance Acoustic MCD 203 (photo1-2), and I am very glad. I am so enthusiastic that I would like install your opamp also in my diy power amp hypex UCD180HG Lucio A.

Music Hall 25.3 DAC upgrade with Burson Dual opamps by Rich O.

I am up and running and the Burson HD op amps are a very worthwhile addition. Wow! The tube side of the MusicHall 25.3 DAC isn?t so soggy anymore. The big benefit was to the balanced SS output, which bypasses the tube and output caps. The bass was kindof soft before, sounded thin. Now I have bass, nuance and weight to the music. It tuned this $600 retail DAC into something special. Rich O

Audiolab 8000p upgrade with Burson HD opamps by Vasileios K.

..."Your opamp is worth every $$ i paid for . Ittransformed the sound of my system. It is very natural , firm bass control , mid frequencies are outstanding. It is the first time that cymbals sound soreal. I read the reviews but now i'm convinced by myself now." Vasileios K

Sony CDP upgrade with Burson HD opamps & Low jitter clock by Neo K.I bought four pcs of the dual ops amp and one jitter clock ckt for my old Sony player. I replaced the jitter clock first, give it a listen but could notreally hear any differences as my ears are not trained. After a few weeks, i decided to change out the ops amp, not sure what to expect but wastotally blown away by the fullness and clarity in the music after soldering them in. There is a lot of details which i wld not have pick up with the oldops amp. Noise in some particular recordings ...

Minimax Dac upgrade with Burson HD opamp feedback by Steven T.

The Burson Op Amps are still breaking in (10th hour) but I can hear moredetails-not the "in your face" kind but delicate, micro details that allow you to hear more into the performance and draw you in emotionally. These area great product/upgrade!! Keep up the good work. Steven

Cambridge Audio AZUR 640C CDP upgrade with Burson HD opamps & Low noise regulator by Ronald.

HD Audio Opamp


I am really impressed with this upgrade, as theBurson Audio parts have really taken this unit to a whole new level. Bass has become deeper & much controlled. Mids are excellently rich & warm,while highs are crystal clear, crisp, and natural. Sound stage has become more open with realistic depths. Overall presentation is excellent. Thanksalso in part to its very good Wolfson DAC. You must upgrade one to believe it. Best Regards, Ronald

Asus Xonar HDAV 1.3 Deluxe upgrade with Burson HD opamps by Brenden H.The installation process itself wasn't difficult, but it was quite fiddly. My soldering skills are not all that good, especially for this sort of work, so insteadof removing the existing sockets from the card and resoldering the opamps directly to the board, I just plugged each lead into the correspondingposition in the socket. The Xonar HDAV is actually 2 cards - the main card supplying output for the front 2 channels and a daughter card supplying theremaining 6 channels of a 7.1 setup...

Naim CD5x upgrade with Burson HD opamp feedback by Mark L.

..."Now with your HD OP-Amp it?s like a dream! Never heard such natural voicesand instruments bevor! Also with not optimal power supply they?re playing with absolut no hardness, good dynamics und better resolution.Soundstage is much more defined"... Thank you Burson guys for such a nice product! Mark L.

Dpa Bigger bit Dac upgrade with Burson HD opamps by Eran S.Wow! wow! wow! I can not express in words how significant is the sonic improvement. My Dpa Bigger bit dac never sounded so open, clear, detailedand vivid. The thing that strike me first was the Articulation of the singer -It just like they had another lunge opening...Abbey Lincoln , Hugh masakellaand Terry callier are present in the room, spreading there magic lyrics and sound like never before. The micro and macro dynamics are far better thenwhat it used to be, the bass has more foc...

EE Minimax Dac with Burson HD opamps upgrade by Johny W.

..."I recently purchased a matched pair of dual discrete op amps. I am extremelyhappy with my purchase"... Johnny W.

Marantz CD63-mk2 upgrade with Burson HD opamps, Low jitter clock & Low noise regulator by Ronald C.

I did some upgrading on a Marantz CD63-mk2Ken Ishiwata Signature. The Marantz CD63 is a very easy player to upgrade. No doubt my friend is extremely happy indeed with the Burson upgrades,taking his player to a whole new level. So, attached are some photos of the CD63 mk2 KI Signature. Notice the copper chassis of the player and thetorodial transformer in the player! Ronald C.

HD Audio Opamp


Marantz SR8500 upgrade with Burson Dual opamps by Edwin W...."I have successfully upgraded my old Marantz SR8500. One burson module for the L-R channels the other for the Centre and Sub. I use the Marantzonly as a preamp into my RMB-1095. For now I'm using cheap 7*15 regs but look forward to buy some low noise regs from you in the future. Thesound of my HT has increased beyond anything that I have lately tried so the old Marantz is staying a bit longer yet. I've even rediscovered my CDcollection with my Rotel RCD-965 with Burson plus c...

Rotel RCD-965-BX upgrade with Burson HD opamps feedback by Felix M.

Just received the new set of OPAmps (latest revision) installed them and it was "plug & play".This set was with the DIP sockets installed. They fit perfect. The one you see in the photo near the heat sink doesn't touch it at all. I would want tothank you for your help and service, really customer oriented. You can count me as one of your satisfied customers! Felix M.

Shangling CD-80 Burson HD opamp upgrade by Antonio T.

..."Burson audio has a great product. My audio terms are not good but I do have old ears. I know good sound whenI hear it"... Antonio T.

Firestone Cute Beyond upgrade with Burson Dual opamps by R. Carstens

..."A notable difference and improvement over other IC operationalamplifiers tried, including the old time favorite OPA627. Busy going through my music collection of great diversity in genre and thus far it just seemsto do everything right. It has brought to this little bedside rig of mine a certain synergy quite pleasing to the ear and silenced that little voice in myhead responsible for compulsive upgrade disorder, as well as putting an end to my recent opamp rolling spree"... R. Carstens

Eastern Electric Minimax Dac upgrade with Burson HD opamps by Philippe G.To be quite honest the results are simply awesome, the Burson HD op amp transformed the Minimax in a whole new machine : Bursons HD opampseems to work beautifully with the ESS9018, it adds tons of detail, as well as a fair amount of airiness. All in all music gains 'Gestalt', a more haptic,tangible experience alltogether, very holographic. Timbre of instruments is also more natural and I'd say ... credible. Extensions are enhanced : better,tighter and more detailled bass, amazing slam, am...

Burson HD opamps upgrade by Peter K.

HD Audio Opamp


Arrived in the opamp. I installed successfully,better than I thought. The firstseconds is shown something different than before. After two hours I'm sure that betterthan any IC! And even where it is100 hours? I'm not what you know so well! Congratulations to the opamp. Then think about other ways to uppgrade. Sincerely, Peter K

bursonaudio.comHD Audio Opamp

NvbS9ESVlfSERfT3BhbXAuaHRtAA==: form2: os0: Dual OPA Fly Leadsubmit:

hd audio opamp

Documents