Review: Sony SCD-1 Audiocom-UK upgrade


Category: Digital

This is the first part of a weekly update/review of the Audiocom-uk modifications made to my Sony SCD-1 by Audiomod (Richard Kern). This was the full six part upgrade as outlined at www.audiocom-uk.com/diy_features.shtml. The six parts include Audio board electrolytic capacitors, Audio board resistors, Audio board regulators' Audio board op-amp modules, Power board electrolytic capacitors and Power board regulators.
I sent out my player two day Fed-Ex on Monday, 13 Aug. ‘01. The unit was received by Richard on Wednesday and he began the 16 hour modification right away. We decided to have him do the initial burn-in through the weekend to see if any problems arose. On Sunday he ran a series of tests and found that the power regulators on the power board had a problem and were running hot. On Monday Richard ordered a replacement set that he installed Tuesday, The problem seems to potentially be more of a voltage matching with the Audiomod replacement parts, so the three original regulators were reinstalled. Richard kept the player playing until Thursday, 23 Aug. to be safe that no other issues arose. ( I have asked Richard to give a brief description of his findings and some thoughts on the modification, I hope he will post those ideas here) The player was overnighted to me and I received it yesterday, Friday, 24 Aug. ‘01.
The package arrived safely, double boxed like I had sent it. Opening the box, I found a listing of the work done, a brief personal note and a bag full of parts. The player had been cleaned off on the outside, looking better than any other time the past year and a half. After placing the SCD-1 back on its throne, I opened the cd tray and found it too was sparkling clean, all the fine dust I'd been collecting was gone, I guess I'll have to start a new collection. It was clear to me that Richard takes his business very seriously. The checking and double checking on his bench and the cleaning all made an impression on me.
I ran the unit for about three hours before giving it a short initial listen. It was clear on the "red book" playback ( I did not try SACD) that the definition, and sound stage were vastly improved. The reason I had chose this upgrade was because after two weeks with the Audiomeca Enkianthus up-sampling DAC I felt the improvements were not great enough to justify the cost. Here with just one disk the improvement to the entire presentation blew away the Audiomeca, and in every way. The transparency, definition, detail, dynamics, timing and sound stage were all improved. Not a subtle improvement, this is night and day, like a different player. I have NEVER heard any "red book" playback sounding this good on my system. It's easy to see this will be a great investment. In that the electrolytic capacitors require a full 400 hours to fully burn-in, the final sound quality will not be realized for a couple more weeks. So far the timbre is a bit off and the treble is slightly etched. The bass is completely gone at this point, I listened to Emmylou Harris "Spyboy" cut # two, this bass will generally shake my walls, this time I got up and turned off the mid/ high frequency amp to see if the bass amp was working. Sadly it was, I pray this is just a temporary setback.
So for week one, I would say this is looking very promising. I will update this post next Saturday, please stand by.
J.D.
128x128jadem6
j.d.: EXCELLENT post. don't wanna' be too pushy, but do you mind telling us the cost of the mods? _kelly
Sorry I forgot pricing. I also forgot to say that Richard called or wrote daily to update me, very good service.
Pricing below is UK, The final numbers are U.S.
Audio board electrolytic capacitors - 135.77UK
Audio board resistors 621.00UK
Audio board regulators 199.75UK
Audio board op-amp modules 130.00UK
Power board electrolytic capacitors 287.26UK
power board regulators 119.85UK

Total parts costing 1493.63UK - $2123.40US

Labor to install $ 450.00US
Shipping both ways additional (aprox. $400)

Total upgrade cost aprox. $3000
Cost of SCD-1 new $2500-3000

Total cost invested for my unit $5500.
Just to clarify for those interested. The problems I
experienced while modifying Jadem6's sony were traced to
several bad Audiocom regulator's that I had installed.
The Audiocom regulators are very static sensative and can
be damaged easily. While I took precautions concerning
static, a defective soldering iron caused 2 to fail on
the power supply board. I replaced these parts only to
find one more regulator that had failed on the Audio board.
The original regulators on the power supply board were
put back in, because they were able to run even with a
defective regulator on the audio board and the audiocom
regulators were over heating and shutting down.
The audiocom regulators can only supply 330 ma of current
and the sony regulators can supply over 1 amp of current.
The bad regulator on the audio board was causing the
overheating, but I saw no reason to take a chance on using
the audiocom regulators on the power supply board. I
replaced the bad regulator on the audio board and made sure
all of the regulators worked properly.
Will this situation be a problem for you, I can not say.
The first full Audiocom mod kit I did, worked perfectly
and is still working perfectly. My advise to anyone doing
this mod is to be sure and check each audiocom regulator
after it is installed to make sure it is working properly.

Richard Kern
Audiomod