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Oppo BDP-83 Mods    Updated - Dec 22, 2010 Jena Technologies
        New mods we are performing now and are accepting new orders to be done...  e-mail@jenalabs.com
    Our Oppo BDP-83 Blu-ray player improvement mods are extensive, and the results are well worth the costs.

    Many machines have now been completed. We continue to customize these even though they are no longer made.

    New Review just published - http://www.audaud.com/article.php?ArticleID=8339

        Reviews from customers are found on the web, here is an early one:
       http://www.audioasylum.com/forums/hirez/messages/26/266953.html
      
       Found on forums copied with links to source:
       http://www.jenalabs.com/reviews/reviews-Oppo_BDP-83.html

        Questions and answer page in development:
          Like these:
       
Do you plan to perform Mods the newly introduced BDP-93
        New page- http://www.jenalabs.com/mods/comments_answers-oppo.html

        These improvements in the performance of this great Blu-Ray player are brought about in the now unified modifications...
        The "Full Force". 
We dropped the basic as nobody *only wanted* the basic, so it is just a part of what has now become a set of complete modifications, depending on the machine.

Here is a description and pictures of what to expect.
These are pictures of the stock audio board as it comes out of the player.
stock audio board.back of stock audio board.


We replace the two prong AC inlet with an immersion LN² cryogenic treated grounded version inlet, and properly ground the chassis, both as a safety issue, and that it turns the metal chassis into a proper Faraday shield that keeps noise out of the chassis rather than leaving it a floating antenna that takes in RF and transmits it to the electronics inside.
AC inlet

  We replace the AC fuse with a superior high grade circuit breaker, which eliminates the FM distortion and higher power-line impedance that the fuse creates. (# 1 in picture below) We replace the AC wire with our JENA Ultra-Wire that has lower graininess in sound than the stock wire. (#2 in picture)

Picture of the AC power board modifications (#1 #2 and #3 in picture below)
power inlet board portion of player.

We take the power supply's as shown below (different versions and variations) with JENA Ultra-wire leads and ultra fast and ultra low noise Schottky's Diodes are installed:
stock power supplys.
And they get our anti-ring treatment...
Explanations of the science of this found here: Q&A
Anti-ring.


We replace the 3 rectifiers that feed the analog board with real Schottky's parts (#3 in picture above)...this reduces avalanche noise in this delicate voltage position. We add high speed bypass caps to the final filters that feed the analog stage on the power supply board.

On the analog board we add about 30 parts. The stereo out jacks are replaced with immersion LN² cryogenic treated Cardas jacks with JENA LABS Ultra-Wire hookup. The op-amps are replaced the latest National Semiconductor LM4562 parts. The output of the stereo set is direct coupled eliminating the caps in the signal path. The final filter electrolytics at the stereo set are removed and replaced with the best possible, the Elna Silmic II silk paper electrolytics. Some of the small value bypass caps on the audio board are removed and replaced with current generation ultra fast monolithics, as well as almost 20 more of these being added to bypass the remainder of the electrolytics and poly caps on the stereo section of the audio board.  If the multi-channel output is to be used, we will do the same op-amp upgrade and direct coupling, and power supply improvements to the multi-channel side of the board as well.

All the ICs on the audio board are treated with Silent Running® Audio dampening material. The main mother/video board has ALL of the ICs, crystals, inductors, and the digital video output jacks treated with Silent Running Audio dampening material. The bulk of the chassis and the cover is also treated with a combination of Silent Running Audio and  Cascade Audio Engineering® Vibration Blocker 2 damping materials.  Q&A

..

modified Audio Board.
Back of modified Audio Board.
back of modified audio board

JENA exclusive The DC power filter we designed and built for these audio and video boards is called the Full Force.
It replaces the original harness that was there which was unfiltered for both boards.
Full Force More information below about this significant enhancement.

We suggest the base model 83, not the SE which is more expensive...The DAC is slightly better on the SE, but the analog stage that follows it cannot be made as good as the less complex analog stage in the regular edition. We have BOTH here, and modded the audio boards boards to the same extent, and the standard version IS the musical winner, at least after we do our re-engineering. The SE board requires 3 dual op-amps after the DAC and it cannot be reduced. The standard can be direct coupled and use only 2 dual op-amps, and employs a less complex path for the signal to be damaged in.


NEW... We also replace the economy feet with our damped product All Current Modified Players come with our latest compound rubber + density filled design.
New Jena feet Great feet for your BDP-83.

Notice that we treat the base plate of the player with antivibrational VB2 and that we leave the ventilation ports intact.
floor plate and feet.
We use 6-32 stainless button head hardware to securely fasten the new feet to the base of the player.
 We developed these for our Platinum Power Conditioners... They work very well.


top cover.  
Above:  VB-2 treatment of top cover of player.

"Full Force" mods include...
    .
DC Compound Filter.
    Above right is the actual Full Force Bipolar DC Power Filter in current production.
    current production
    Inside of the above player are the Full Force power filters (2 types.)

    JENA Labs designed this compound filter to feed the audio board with REALLY low noise DC power.
   
The second power supply filter is seen. (Full Force filter#2)

    completed Oppo-BDP-83.
    We do attach a special JENA LABS nameplate to the front of the player, signifies that the mods are genuine and that you own this great machine.
   

   
      
    Anti-ring cooling fins Detail of anti-ring fin treatment to main board. IC's now get VB2 and cap's get SRA anti vibration material respectively

No-one in the business does such a comprehensive rebuild for this low a price.


   "Full Force
stereo"  (Bipolar DC power filter for audio board and video board) -  with all else included $1100.00


 
If you DO select the SE edition of the player, the cost is $1125, because of the additional op-amp replacement costs.
    "Full Force *SE version  BDP-83-SE player" (Bipolar DC power filter for audio board and video board) -  with all else included $1125.00

    Plus shipping and insurance added which depends on your location.
 
   
(Doing the multichannel outs... call for options)

    Jennifer Crock
    And Michael Crock      
   
New mods we are performing now and are accepting new orders to be done...  e-mail@jenalabs.com
       JENA Technologies

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