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Preamp modifications - who would you use?

I am looking for a company or individual who performs equipment modifications to take a look at a preamp I own and recommend (and implement) parts improvements and or modifications to squeeze out the last bit of sonic performance. I would like to talk with someone who is well regarded not only for the quality of their work but also for their customer service, and who has enough experience and expertise to assess each piece on an individual basis, and not simply apply the same bag of tricks to everything they touch. Based on things I have read, folks that come to mind are Kyle Takenaga at RAM, Bill Thalman at Music Technology, and Chris Johnson at Partsconnexion. I would be interested in other recommendations. Thanks.
mitch2
hifiman5's avatar
hifiman5
1,611 posts
 
Phaelon is right on. I can't imagine better results than can be obtained by Bob Backert of RHB Dezigns. Bob will analyze the circuit design and implementation and recommend what he can do and how each improvement will effect the sound of the gear. Bob tests with equipment and ears all along the way.

Bob is professional and the consummate gentleman. He and his son do great work! You will not be disappointed.

If you check around on the net I am confident you will find nothing but rave reviews of RHB.
strateahed
251 posts
 
Check with Joseph Chow at Audio Horizons. He designed and developed one of the most highly regarded preamps around. He has a separate upgrade (mod) business unit, and will make a recommendation once he's assessed your gear. I have been very happy with his work ... great customer service and he'll give you very reasonable rates.
mitch2 OP
1,911 posts
 
Thanks everyone, you have come up with some names that I didn't know about. Any more I should consider?
hifihvn
943 posts
 
I can't recommend anyone, but ask them what type/brand of caps they like for it, and what sonic changes to expect from those caps, or other parts/mods being done. Ask any possible downsides if any apply.
bryoncunningham
888 posts
 
I recently had Kyle Takenaga modify my preamp/processor. You can read my A'gon review here. I've been very pleased with the improvements, which include increased resolution along with a greater sense of relaxation.

I would like to talk with someone who is well regarded not only for the quality of their work but also for their customer service...

Kyle was very responsive both in emails and phone calls. And he was not the least bit secretive about his methods or parts, which was an important consideration for me.

...and who has enough experience and expertise to assess each piece on an individual basis, and not simply apply the same bag of tricks to everything they touch.

I can't comment on this, as I only had Kyle modify a single piece of equipment. A conversation with him about your preamp might answer this question for you.

Sounds like there are other good options as well. Good luck.

Bryon
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