Who do you like for equipment mods?

For amps and preamps, I highly recommend Bob Backert at RHB Sound Dezigns. He’s very friendly to do business with, turnaround time is always as promised, and his prices are very fair. He is thorough and systematic in talking through work to be done.

He’s modded my Pass Labs Xono which now sounds so much better I’ve stopped listening to CDs. He’s best known for tube work. He fixed my Counterpoint SA 20 hybrid power amp without schematics - a favorite of mine. He’s also done a Pass XVR-1, a Threshold S/550e and some work on my Pass Labs X0.2. He's in PA outside of Philly. Check out his website.

For vintage tuners, you can't go wrong with Ken Bernacky at Stereo Surgeons in the Hartford CT area. He's been doing this forever, he gives you before and after specs, he's really thorough and he gets equipment sent to him from all over the world! If you meet him in person you're in for a treat. See a reference on TIC (tuner Information center website or check out his website).

Who do you like????

I would second your choice also; I would add Scott Franklins'(of past MFA)name to the mix, located in the San Jose area.
Scott performs excellant mods with the same results as Bob Backert; very highly recommended engineer.
Barry, I couldn't agree with you more, Bob and Gary are great people, and do wonderful work.
FWIW here is the link to RHB Sound Dezign

Paul Weitzel at TRL for both mods and proprietary designed equipment.
Steve Huntley at Great Northern Sound has done great work for me on Wadia and ARC gear. (He used to work for both.) He's doing an upgrade on a Rhea for me now, and I intend to have him work on my EAR 834P eventually.
Douglas Jesse at ASi Teknologies in Warren Michigan.Professional,helpful and quick turn around.
I have heard mods by Stan Warren that were outstanding. He is tough to get to, but if you are persistent it can be done. His stuff is amazing.
Doug Jesse? www.asi-tek.com?

I'm glad your experience was positive. Others haven't been so lucky.


I couldn't agree more. Paul at TRL. Great guy to talk to and is very knowledgeble.
Bob Backert. I had Bob modify a CJ preamp some years ago and the results were staggering. I've since sold the preamp and had to spend almost 3x the $ to better the sound, albeit marginally. Excellent work -- fair pricing.
Ric at EVS,perhaps its called tweakaudio.Very timely and professional,good luck,Bob
Mike Samra in MIchigan is great for vintage sherwood stuff

Anyone know any speaker gurus out there...someone who could tweak a DIY, like rewire, tune xovers etc....
kbuzz - contact member johnk. He seems to know as much as anyone.
I like Bob as much as the next guy ( he is a genius ) but if you guys will keep mentioning his name - he won't get any sleep. Besides the turn-over isn't that bad ....yet. But when it reaches a month then it is our fault. ;)

I love my Cybers with BBs touch. Just to let you know.
Another vote for Paul at TRL.
Joseph Chow of AudioHorizons, the maker of preamps, cables, and DAC's that are highly popular on Audiogon. He has modified multiple pieces of equipment for me including an Aritight tube preamp (took a very nice piece and made it stunning), AudioVan Alstine Fetvalve amplifier, Rega Planet CD players, parasound dac's and preamps, etc.

He is an audioengineer/designer and audiophile.
For speaker repair of vintage stuff, I'd try Bill LeGall at Millersound. He's less of a mod guy. He's been around forever. I've never used him but talked with him & his website's amazing.