Oppo Mods UDP-205 UDP-203usedOppo Mods  UDP-205 UDP-203 Modification & Other HK, Elac, Pioneer unitsOPPO HAS JUST STARTED TO RELEASE A LIMITED RUN OF THESE UNITS TO PEOPLE WHO HAVE SIGNED UP ON THEIR REQUEST LIST VIA EMAIL. GET YOURS MODIFIED NOW! (Note: This ad is for the modification of th...395.00

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Oppo Mods UDP-205 UDP-203 Modification & Other HK, Elac, Pioneer units [Expired]

no longer for sale


(Note: This ad is for the modification of the Oppo units UDP-205 and UDP-203. The price listed does not include the original price for the unmodified player itself, which is listed below.)

In the words of The Absolute Sound’s Robert Harley, we are a “small, but passionate” (TAS #229, Feb 2007) audio company in Gresham, Oregon (near Portland). We make our own custom-made, crossoverless single-driver speakers (that really work), modify subwoofers, interconnects, and speaker cables. We have also been modifying audio components of different makes and models for nearly a decade. We specialize in Pioneer players and receivers, Harman Kardon receivers and amplifiers, Music Hall, Rotel, Elac speakers and subwoofers, Sony players, and B&W speakers.

We have developed a new, innovative method to modify audio and video equipment. My late boss, Dave Herren, a well-known modifier in the Northwest, had previously worked on modifying equipment by replacing capacitors that ran through certain key signal paths, thereby improving electron flow and allowing the machines to have much better fidelity in both audio and video. Our new proprietary modification is simpler yet more thorough at the same time. Our process improves the functioning and efficiency of all the capacitors and other electronic components of the modified unit, affecting not only specific signal paths but improving electron flow throughout the entire machine. This modification can turn simple, less expensive pieces of audio equipment into pieces that rival others costing thousands more.

We recently came across positive reviews of both the Oppo Digital UDP-203 and UDP-205 Blu-ray players. According to the reviews, both players had received substantial upgrades from their previous models. We decided to see how much our modification could improve these players.

Out of the box, both units sounded quite digital, thin on the top and generally lean, with a rather truncated bass floor. But based on what we read (and our own experience), these Oppo players require an extended break-in period. After breaking in both players over a number of days, the sound and video did improve: both players had a less digital flavor, less lean character, and lower bass floor. But even though the players’ deficiencies were less pronounced, they were still noticeably present. We felt our modification could remedy these shortcomings to a large degree.

These pieces required their own unique, special modification compared to other units we had previously modified. After modification, the sound and video performance of both players improved significantly. The UDP-203 obtained a smoother, more analog sound and a lower bass floor. It was more detailed with better location and was less thin and bright. The black levels and contrast of the video also improved, making it much less flat. Colors popped, were more correct, and much more complex. The images were more 3 dimensional.

The modification to the UDP-205 resulted in more substantial, darker, and deeper bass. The presentation had a larger, wider sound stage and much improved location. The tone was more musical, more live, and vastly less digital sounding. The video also gained detail and more vivid color tone, while still maintaining its black level and contrast. The picture was noticeably more three dimensional. Some settings had to be changed in order to adapt to these modifications in the audio and video.

We have never had a modified piece returned from an unsatisfied customer. Our regular modification price is $395 for these Oppo units, which includes shipping in the continental US back to you once the units are modified. The modifications to the Oppo Digital UDP-203 and UDP-205 turn a highly reviewed stock machine into a much more satisfying piece that competes quite favorably with pieces costing much more.


Oppo UDP-205 Specifications

Oppo UDP-203 Specifications

Price for the stock Oppo BDP-105: $1,333.

Price for the stock Oppo BDP-103: $569


We also modify all makes and models of receivers, players and other pieces. We can also modify such subwoofer brands as Velodyne, JL Audio, REL, and others. We also modify Rotel, Harman Kardon, Pioneer Elite, Peach Tree, Mark Levinson, Parasound, and other pieces.

We also modify DACS, floorstanders and bookshelve speakers on a regular basis. Please call for pricing and talk to a knowledgeable person who is as interested in audio as you are, and is interested in you getting the best sound in your budget.. We look forward to hearing from you soon.

Stereo Dave's Audio Alternative


[email protected]

Customer Feedback

Every once in a while, we get emails back from customers that take the time to let us know how they liked their modified units.

"Hello Sean,

Finally received the amp (Music Hall A15.3 Amplifier) from FedEx today, been listening to the amplifier for several hours now.

I have no intelligent audio superlatives to share. This little baby sounds simply amazing. What amazing dynamics, staging and real bass weight. What was veiled and subdued previously is gone.

The AJ Pioneer Bookshelves are leaving here tomorrow for you to work your magic.

Thank you to you and your team. You have a customer for life.

Very pleased with the result.

Best regards,"

"Good evening Sean,

All hooked up. Listening to CD. Dire Straits Communique. Cant believe it Sean. Cant believe this quality of music, of fidelity, is coming from these bookshelves! They are so open, clear, airy. No grey overcast here man! The pace, rhythm and timing is exceptional now. It is just so right. They are standing beside their big brother floor stander I was listening to earlier this week. There is no comparison. I cant imagine what that modification would sound like. Damn. Cant wait for the subwoofer to land. Oh man am I going to be happy happy. Nice work folks. Friggin awesome. Take care and best regards,"

Mark from California


I love the sound of the modified (Pioneer BDP-53FD) player. I have it hooked up using the analog inputs. I didn’t change anything in my set up except to swap players. It sounds way different than the Denon 2900: better in every way. The biggest difference for me was how the player made the speakers disappear. Does that make sense? Music sounded ok with the Denon, but it was just a source to play cd’s, nothing special.

I listen to all types of music: swing music from the 30’s and 40’s, Latin or Salsa music for dancing, smooth jazz for night time listening, 70’s soft rock and classic rock. I’m all over the board. The player did make a difference in the presentation of the music. One example is the bass: the Denon’s bass was rather bloated. I didn’t notice this until i had the chance to listen to the Pioneer. The Pioneer’s bass was more natural. The bass blended better with the music and didn’t sound like it was “in your face”.

The vocals sound great as well. Even my 14 year old commented on how the voices sounded smoother and more natural. He even mentioned that it sounded like there was a center channel speaker hidden somewhere for the voices to come out of and “float in the air”. Nope, just my Tekton Lore speakers.

The Pioneer has taken my listening enjoyment to a new level. Kudos to whoever designed the mod because it does sound awesome!

Thank you,


Here is feedback from one of our modified HK 990 units from a customer:


Forgive the late feedback, but just to say I absolutely love the amp. This is just the sound I was looking for.

Thank you,