ASi Teknologies
"High Performance A/V Modifications & Products"
Introduction:

The long anticipated Oppo DV-983H Universal Player is now here!  This MSRP $399 unit
utilizes the optimum Anchor Bay VRS video processing circuitry for stellar upconverting
standard definition DVD playback performance. High Definition video formats (ie: HD-DVD &
Blu-Ray) are not supported. Our ingeniously engineered & professionally installed
modifications provide a level of reference level quality of sound and video that is just not
found anywhere in the standard definition DVD marketplace today. We can confidently
state that this is the best looking standard definition digital playback source we have
experienced to date!

How does it sound and compare for the 2ch audio enthusiast? Comparing the ASi Modified
DV-983H W/D-Clock to the stock DV-983H is pretty remarkable. The stock unit has a
compressed and dynamically limited sound to it in comparison. The soundstage sounded
like it was mostly trapped inside the speakers. The clarity and definition was just not there
compared to the modified unit. Amusical is the term that comes to mind on the stock vs.
modified DV-983H. A quick and easy A-B proves the modification makes for a real world of
an improvement! This DV-983H really breathes... it sounds wide open, spacious, very
musical and balanced from top to bottom with no exaggeration in any specific frequency
bands!  How does the ASi DV-983H W/D-Clock compared to  some pretty expensive stock
digital sources on hand ($2000-$9000 units)? Well, first the stock DV-983H does do a
decent job against other stock units that are seriously more expensive. No doubt about it.  
With the ASi DV-983H W/D-Clock  we immediately heard a greater sense of resolution,
music sounded free flowing into the room with great presence and control, we had a much
larger, wider, deeper soundstage, with exceptional crystal clear vividness in voices, with
great separation of instruments and refinement of brushes and cymbals and great
dynamics. This player is truly a dream come true for the standard definition DVD player and
universal audio format enthusiast!

Note on New Modified Unit orders(2-19-2009):The Oppo DV-983H is now
discontinued. We are only offering modification services to existing customer
supplied machines. There is no more stock units left in stock at oppo. If your not
interested in blu-ray, this is still the best option to get..
Oppo DV-983H Modification Descriptions & Prices
Modification Package Descriptions

Upgraded IEC Connector for better grip onto power cords-
We add a high quality IEC connector that is cryo-treated to the rear of the chassis for use
with high performance aftermarket power cords. The reason is the stock connector doesn't
grab and bite onto some power cables that well and they can fall out, this upgrade will
ensure a tighter fit. We also correct the backwards polarity wiring issue in the stock design!
NOTE: The stock connector and supplied AC cord with the DV-983H is a 2 prong version.
We highly recommend using an aftermarket power cord for improved sound and video, it
truly deserves it

Ultra Low impedance Rubycon capacitor replacements-
We replace an abundance of Switch Mode Power Supply and DSP/Analog board voltage
rail decoupling capacitors in all critical areas of the player to the ultra low impedance
Rubycon capacitors!

Very Nice improvement! A HUGE change in total sonic tonality and character and as well
as providing the video section with substantially less noise for cleaner output. The stock
capacitors are very poor in comparison of the factors of impedance and ripple current &
will not let you realize the full potential of this unit!

Ultra High Speed Diode Bridge-
We replace the stock noisy/glary/grainy rectifiers with very low impedance ultra fast
rectifiers. These are absolute superior to the stock diodes rectifiers, removing the glare,
grain and grit from the sound and video and allowing you to realize a much cleaner audio
and video performance! !

Qty: (3) DEXA UWB (Ultra Wide Bandwidth) Ultra Low Noise Voltage Regulators-
The UWB Regulator is a high end replacement to the OEM 7805 +5vdc, OEM 7812 +12vdc
and OEM 7912 -12vdc voltage regulators used to regulate DC voltage in the Oppo.
Unfortunately the OEM 7805/7812/7912 regulators have very poor noise performance.
Especially if there are external noise sources around the OEM regulators, like ripple or
load fluctuations.  In comparison to all the OEM regulators, the UWB's have more than 100
times better ripple rejection, 10 times lower noise, and no line and load regulation error.
The result is a drastic improvement across the entire spectrum and more dynamic range.

2ch Analog Output Stage Rebuild-
We delete the OEM Analog Output stage after the DAC Chip (all capacitors, analog
filtering, opamps, etc) in favor for our optimized version using the very best sounding
opamp on the market feeding the new 2ch analog output jacks, bypassing allot of stock
circuitry. We replace the OEM capacitors with Ultra low impedance Rubycons. We feel that
this minimalist approach will most likely be of higher resolution than if you compared it to a
outboard DAC. (The factors of connectors, coupling caps, digital cables, impedance, input
receivers, filters, stock electronics, etc.. come into play in the outboard DAC)

High Performance  RCA Connectors for 2ch out-
We add a set of very high quality Vampire RCA jacks for the 2ch output section to vastly
improve the signal integrity over the stock jacks!! These are wired via Silver Wire from the
optimized 2ch output section

HDMI Video Output Board Modifications-
Replace OEM capacitors used for critical voltage decoupling and storage in the areas
around the ABT Scaler/Deinterlacer chipsets to the Ultra Low Impedance Rubycon
capacitors for a substantial improvement in video performance.

Internal Soundcoat Damping-
Apply Soundcoat damping material to specific areas to minimalize the amount of internal
vibrations and ringing.

E-A-R Specialty Composites Vibration Isolation Feet-
E-A-R Specialty Composites is a leading manufacturer in the high performance vibration
isolation and damping material industry. We add a trio of their vibration isolation feet in
specific areas on the underside of the Oppo unit. There is essentially no OEM feet and this
gives the unit a much more stable stance as well as controlling vibrations at certain critical
points to enhance the performance of the unit in a whole.
Modification Package $595 Shipped (No Clock upgrade)
Send your DV-983H in for mods, 10 day turnaround
Modification Package w/D-Clock $850 Installed/Shipped
Send your DV-983H in for mods, 10 day turnaround
Request More Information about our Oppo mods and any special request!
Counter
World Wide
Shipping!!
Region Free!

Our players
can be used
world wide!

International
Shipping is $65
anywhere outside
of North America.
Please
email or
use form below if
your outside
North America to
purchase.
Using your Oppo as
a dedicated
transport only?
Need Multi-Channel
outputs modified?
Please
Email us for
a custom quotation
tailored to your
specific needs.
Incredible
Video!
DEXA D-Clock Reference Clock Upgrade-
The OEM Oppo master clock is a basic pierce oscillator which feeds directly into the ASIC
(DSP) chip . Phase noise and power supply injected noise here is high affecting all audio
and video formats with "jitter". The DEXA clock has an extremely low phase noise oscillator
(around 1.5 picoseconds Jitter RMS) and dramatically improves all areas of CD, SACD and
DVD playback. The ultra-low jitter and noise performance of the D-Clock immediately
releases impressive sound quality from the Oppo DV-983H & shifts the players tonality to
remove hardness & harshness; the overall frequency range is more natural and unforced.
Lower frequencies on CD/SACD/DVD playback have greater impact, weight and control.
Greater dimension is added to music and movies, vocals and instruments having improved
spatial qualities with a more solid, palpable feel. The DEXA clock has a very unique function
of isolating the clock signal ground to the power supply ground, so there is
no ground loop,
and also there is
no Mains Noise injection for the cleanest clock signal possible.

The DEXA D-Clock now eliminates the need for a dedicated (and costly) external
dedicated power supply due to its inherent mains/ground isolation topologies.
 
Highly Recommended by all means for the best audio and video performance!
ADDITIONAL UPGRADES!
Incredible
Audio!
Mod Package DV-983H w/D-Clock + 7.1 Analog output
channels modified $995 Shipped
Send your DV-983H in for mods, Turnaround 10 days
7.1ch Analog Output Stage Rebuild-
We delete the OEM Analog Output stages for the Multi-Channel outputs after the DAC
Chip (all capacitors, analog filtering, opamps, etc) in favor for our optimized version using
the very best sounding opamps on the market, bypassing allot of stock circuitry. We
replace the OEM capacitors with Ultra low impedance Rubycons. The modified outputs are
rewired to the now isolated RCA outputs on the rear since there isnt enough room to mount
new jacks for all signals. This mod will now enable you to have a completely modified ASi
DV-983H with all analog output channels modified to enjoy your multi-channel music or
movies!
ALL ANALOG OUTPUTS IN THIS UPGRADE ARE MODIFIED THE SAME WAY
AND WILL HAVE THE SAME QUALITY SOUND FOR STUNNING MC PERFORMANCE.
Here is a pic of the DEXA D-Clock installed
and surrounding modified circuitry.
Look! We show you what we do! Some pics of the ASi DV-983H.
Another pic with the D-clock and the
HDMI board that is also modified.
Recent Customer
Feedback:

Your group buy turnaround
around was great. I
received my unit in perfect
health from that long trip
from michigan to northern
california in under two
weeks. The sound and
video is exceptional. No
more thinking about
purchasing another DVD
unit, I am done. Put me on
your list for Oppo Blu-Ray
player modifications. What
you did to this 983H is
amazing! I compared to my
friends stock unit and they
are really night and day in
difference. My friend will
be contacting you soon to
do the seven channel
modifications. Keep up the
great work!  
Talk to you soon, Charles
Overview internal shot of the
ASi DV-983H W/D-Clock.
Note the shielded power supply!
New Vampire RCA jacks installed for
2ch analog output from modified stage.
This replaces the stock front mixed
RCA jacks, those are now disconnected.
Here is a pic of a bin with all the stock low quality parts that were replaced, over 65 parts!  
See right picture, about 21 inches worth of stock parts are replaced with the best
performing parts that we know that exists!
ASi Fully Modified DV-983H w/7.1 Ch modifications

Main 2ch is on upgraded RCA outputs and the 5.1
channels are on (now isolated) stock RCA connectors.
Mods done to all circuits are the exact same. Excellent
MC performance!
All Modifications + 7.1ch mods
Here is the ASi Fully Modified Oppo DV-983H player
shown at AKFEST 2008. This player was also in the Fritz
speakers/Madisound room and it got incredible
compliments. They didn't want to give it up!  This is an
incredible performing unit! Your last DVD player!
All ASi Modified Oppo units will work anywhere in the world.
They are region free and they have 100 to 240 volts AC capability.
We have sent these to many different countries and the delivery
is smooth and quick and they work perfect.
Customer Testimonials-
Doug is extremely professional,reliable,easy to work with,and great to talk with. I got
his fully modded Oppo 983 and the work is top notch. The performance of this player
is incredible, even right out of the box. Awesome job! Thank You! Duane

I received my ASi Oppo DV983 and have run it in for about a week and all I can say is I
am blown away with the sound & the video is very film like. I own a non modified
Esoteric DV50S and the modified oppo is clearly and significantly better across the
board for audio and video. A job well done by Doug and ASi ! Get one of these, you
wont regret it! Regards,Tom

I have never seen standard definition video this good! On top of that, the ASi modified
audio circuits in this Oppo DV-983H is better than my Sony SCD-1 by a very wide
margin. This was the best purchase I have ever made in my 30+ years as an
audiophile, and I can watch DVD's that look damn near HD quality!!!! Cheers! Robert

After doing alot of research and lurking for months on the AVS forum I decided on
replacing my Denon 2900 with the Oppo DV983H. The jump in video rendering was
phenomenal! However the audio output was decent and on the lines of the 2900. I
wanted more. I researched different modification firms and decided to send my unit to
ASi because of their reputation tauted by other modified 983H owners. I sent my unit in
for the "full monty" and the unit was returned in 8 days, I was impressed. Opening the
unit shows dedication and perfection of the modification, all the parts look like they
were factory installed and the wiring was professionally done. First connection I was
floored. This modified player is nothing like the stock unit, there are no similarity's. I
received goosebumps immediately when nora jones came on in such a lifelike and
flesh and bones type of way. The bass has seriously picked up. The dynamics are
startling. Movies are explosive.  Texture is amazing. This was the best investment I
have ever made in my home theatre and audio system ever! Thanks ASi for putting
the largest smile on my face since my divorce!!  Yours, Allan

Thanks ASi! This is my last DVD player ever. Your mods are incredible, I now hear all
small details on my CD's that were not there before and my movies look so great.
Animated videos are HD like. I will be using you to make me a modified Blue Ray unit
when oppo makes one.   Thanks, Demarius

Your group buy turnaround around was great. I received my unit in perfect health from
that long trip from michigan to northern california in under two weeks. The sound and
video is exceptional. No more thinking about purchasing another DVD unit, I am done.
Put me on your list for Oppo Blu-Ray player modifications. What you did to this 983H is
amazing! I compared to my friends stock unit and they are really night and day in
difference. My friend will be contacting you soon to do the seven channel
modifications. Keep up the great work!  Talk to you soon, Charles
(Unsolicited)
Pic of the D-Clock
installed into one of
the many DV-983H's
we have modified.
Mega improvements!