Who Does the Best Mods on CD Players


I own a Pioneer PD-75 player. Am considering spending a couple hundred or so on a mod since I can't afford to buy the player of my dreams. Any opinions about who out there does the best job modding players - for example John Hillig of Musical Concepts or Stan Warren, etc.? Are these mods worth the money? Do they really improve the sound of the player? Any advice is very much appreciated.

Rockyboy
rockyboy
Stan Warren is the only one modifier that I know of that actually designed a totally proprietary descrete output stage that was offered in his mods (amoung his other unique circuits). He's also the only modifier with a past history of designing world class sounding pre-amplifiers that turned the reviewer community on it's ear. Other modifiers (such as Dan Wright) are very good, but I definately think Stan Warren is at the top of the heap. Some of Stan's circuits are so sophisticated that companies like Krell and Levinson could learn a thing or two if they took the time to review Stan's circuits. IMHO Stan Warren is that good!
I never had anything done by them, but spoke with them on the phone and he was very honest and a good guy to talk to. If I ever get something moded, I'd see what they could do for me.

http://www.greatnorthernsound.com/home.htm
Hate to beat the dead horse, but will a $400 mod to an older player like my Pioneer Elite PD75 make it competitive with today's players? When I asked a modifier in the past what sonic improvements I could expect, I didn't get what I thought was a clear answer. I recently auditioned a Classe CDP3 and heard much more detail and bass; but that player sells for $1,600. Does replacing parts like caps and resisters and adding Bybee filters really make a significant difference. Also, are there mods available for my player so it will upsample to 24/96 or 24/192?

Rockyboy
Rockyboy, many "tweakers" simply minimize excess parts ( simplifying the circuitry and shortening the circuit path ) and end up going to higher grade passive parts ( resistors, capacitors, inductors, wire, rectifiers, etc... ) for the parts that are left in the circuit.

This in itself can make a rather stunning difference in my opinion. Most of the gains are typically in the areas of tranparency, liquidity, ease of "flow" and a natural presentation, increased detail with a complete lack or harshness or grain, better bass impact and definition, lower noise floor, greater extension at both frequency extremes, etc... If this sounds like a whole new piece of gear, in many situations, it really is. Then again, you have to start out with what is a good and solid foundation to build such a product upon.

As such, i would suggest talking to some of those folks mentioned in this thread along with a few others to see if your player really can compete with current models. They should be able to give you a "yes" or "no" answer. If it is yes, you'll need to know how much time and money would be involved with doing something like that.

Once you've got a general consensus and know the price ranges involved if you were to do such a thing, you'll be better informed to make such a decision. It is best to know what you are getting into BEFORE jumping in with both feet. Sean
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