Our Oppo BDP-83 Blu-ray player Improvement mods are rather extensive, and the results are great
So far we have completed 16 units and 3 are being completed now. Yours could be in on the fun.
Average turn around is about two weeks.
We have our first review from a customer here:
http://www.audioasylum.com/forums/hirez/messages/26/266953.html
These improvements in the performance of this great Blu-Ray player come in two increments of modifications...
The "Basic Mod"... And the "Full Force".
These are pictures of the stock audio board.
.
.
We replace the AC inlet with an immersion LN² cryogenic treated higher current version grounded
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.
We replace the
AC fuse with a proper high grade circuit breaker, which eliminates the FM
distortion and higher power-line impedance that the fuse creates. (# 1 in picture) 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)
.
We take the power supply's as shown below (different versions) with JENA Ultra-wire leads and ultra fast and ultra low noise Schottky's Diodes installed:
.
And they get our anti-ring treatment...
.
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.
.
.
Above: A current completed Oppo BDP-83 Basic mod
.
The DC power filter we designed and built for these audio boards is called the Full Force.
More information below about this enhancement.
Back of modified Audio Board.
.
We are right in the middle developing a set of new harnesses to replace
the DC connections between the power supply board and the video and the
audio board. These will be made with NEW connectors of the OEM design,
soldered connections and wired with JENA Labs Ultra-Wire.
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 opamps
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.
We also replace the feet with heavy rubber parts, or can at slight
additional cost fit Herbie's Tenderfoot ultra soft isolation feet which
are the best affordable feet we have encountered.
.
NEW... All Current Modified Players come with our latest compound rubber + density filled design.
Great feet for your BDP-83.
We developed these for our Platinum Power Conditioners... They work very well.
.
Above: VB-2 treatment of top cover of player.
The stereo mod is $800 plus return shipping/insurance. If you DO
select the SE edition, the cost is $825.00, because of the additional
op-amp replacement costs. Doing the multichannel outs will add an
additional $120.
"Full Force" mods include...
.
.
Above right is the actual Full Force Bipolar DC Power Filter in 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)
.
Detail of anti-ring fin treatment to main board.
No-one in the business does such a comprehensive rebuild for this low a
price. I can put you in touch with owners that have had this mod done
if you like, one of whom is already on his second 83, and who says our
mod is by far the best of all the rest he has had done.
The stereo mod is $800 plus return shipping/insurance.
If you DO
select the SE edition, the cost is $825.00, because of the additional
op-amp replacement costs.
(Doing the multichannel outs will add an
additional $120.)
"Full Force" Bipolar DC power filter for audio board with all else included $1000.00
Second Full Force power supply filter with all else is $1068.00
Jennifer Crock
And Michael Crock
New mods we are performing now and are accepting new orders to be done... e-mail@jenalabs.com
Website
initialized
on Hevanet V - XXVIII - MCMXCVIII
©MMX Michael Crock and Jennifer Crock, JENA Technologies
LLC
©
In
Portland Oregon.
Updated - Sept 7, 2010 
