Keith resurrected my late dad in law's 1952 Gibson GA-40. He kept it as original as possible and took exactly to where I wanted it to be. Very knowledgeable, to the point, honest and kind. There is a wait because he's that good. read more

They diagnosed and fixed my fender Hot Rod Deville that was squealing badly. I could find anyone else in town. Thanks Amp Lab!

Keith is the best - period. A true expert - always a great job. Keith is very forthright in breaking down the potential issues and what to expect. read more

He had my amp at least 4 months. Told me it was fixed. When I picked it up one foot was missing. I took the amp home and it was still broken. I didn't want to waste any more time or money so I took it to another shop. It was repaired and returned within a month. read more

I was told he did not work on Fishman Loudbox Mini to call factory. I was also told they are to compact and disposable made in China to call Fishman for repairs. Anyways I came home and took it apart and found a loose resistor re-solder sounds as good as new. read more

I've had Keith work on 4 or 5 different guitar amps for me over the last several years, and I'm always satisfied with the results. he not only repairs them, he lets me know what was wrong, and what he did to get them gig-ready. I feel his rates are reasonable, and his services are definitely worth what I pay. I would bring any of my amplifiers to The Amp Lab if repairs were needed. read more

I've been bringing my apps here for the last 25 years. Keith really knows what he's doing. Not only is it priced correctly for the work that he does but quality the work is the best that I've seen my entire musical career. read more

Way late on this review, but I had my vintage Supro amp serviced here years ago, and man it came out screaming! It needed a tune-up and replacement of a capacitor, and when I got it back, it sounded every bit as dreamy as it had when I first scored it for 200 bucks! Highly recommend this place for any amp work you may need. read more

Absolutely amazing. Had an issue with my EVH 5153 50 watt 6L6 on channel three, also always wanted to to the stealth mod on channel 2. Brought to Keith, he told me his backlog was 4~5 weeks, it was ok for me. After 5 weeks my amp is back and it is exactly what I wanted. Stealth mod done and channel 2 (blue) is tone's heaven. Channel 3 (red) working back as expected. Clear abs detailed description of what was done. And the price was just awesome. Recommending Keith with no doubt! Thanks Keith! read more

I brought my '94 Fender Blues Jr and my Carvin 112 Nomad both of which had not been working for quite a while. I had taken them to a, now defunct, amp repair facility near the SJ airport which had failed to fix these amps several years ago. Keith at The Amp Lab diagnosed and fixed both amps ahead of the 2 week backlog estimate that he gave me and gave me some operational tips on both of these amps. These amps have never sounded better. Keith was friendly, helpful and very informative, but most of all, he did a bang-up job fixing both of these tube amps. I highly recommend The Amp Lab. read more

Excellent workmanship and attention to detail. I'm very happy with my amp after his repairs.

A-1 service from Keith at The Amp Lab. A few years ago brought in a '70's Fender vibrochamp another shop had installed a spring reverb in. Loved the sound, but it started acting up a few months after purchase. After a few weeks with Keith he fixed the wiring issue and that amp has been trouble-free ever since. Today I brought in a boutique Tone King Imperial 6V6 amp making some rattling noises. He plugged it in and diagnosed a few microphonic tubes and fixed it on the spot and I was on my way in less than 20 min. How's that for service? Thanks for being my go-to amp guy Keith. I truly appreciate it. Keep rockin'! read more

This is one of the few places in town where you can go for amp repair. I was recommended to Keith by my local guitar luthier. The shop is located near downtown Campbell, and is tucked away in the back of a dead end. I brought in my Marshall DSL 40cr combo amp, which I bought about 2.5 years ago, so it is not that old. I was having sound problems where it would randomly stop producing sound intermittently. Keith diagnosed the problem to be a faulty tube, and replaced it with a new one. I have not had problems with the amp after he fixed it, and it sounds good as new. The only downside was the waiting time. The work took a little over 5 weeks to turn around when the initial estimated completion time was around 4 weeks. read more

They promptly and affordably fixed my amp for me. Shipping was fast and the experience was 5 stars. Thank you

Knowledgeable and helpful amp repair in Norcal. I trust Keith completely with my tube amps and he's repaired many successfully and without issue. read more

Keith is an amp wizard who fixes things ONCE. He's seen it all and there's *never* those return visits to "get it right". He gets it right at a reasonable price with a good turn over time. I've been going to Keith for repairs for at least 25 years without a single disappointment. He also introduced me to putting a Celestion speaker in a Princeton Reverb - a sound I've loved ever since. Thank you Keith! One of the down sides of moving to New York is I can't go to Keith as often as I'd like - but whenever I have a repair in the Bay Area -I go to the Amp Lab. Keith is a treasure! read more

I tried to buy the A.L.I. unit and a FULLY LOADED bass knob roughly costing about $200. I emailed them asking if they could make the bass knob work with the A.L.I unit since the older model did but the newer models don't. Ethan was very rude with me and basically told me I could not have what I wanted even though they have already made it previously and just "updated" it to NOT be compatible with THEIR bass knob. I was trying to spend a lot of money to get what I wanted they were not interested in helping me to the point that he even block me on Facebook. Needless to say they are a LOSER company as far as customer service goes. I won't EVER buy anything from this company. read more

This place was recommended to me by someone at Guitar Showcase and it was a great recommendation. I had an intermittent issue with Fender Blues Deluxe reissue that was very annoying. These guys found it and the amp came back sounding better than ever. read more

So I was going to describe my very pleasant experience getting my amp fixed but then I realized that whatever I say doesn't really matter. It turns out that guitar virtuoso Jim Campilongo has a review of the Amp Lab on his website: "THE AMP LAB On the West coast there is none better at amp repair then Keith Reinegger at the Amp Lab in Campbell, CA. As far as I'm concerned he's the "Zen Master". Tell him "Jim Can't-Be-Long-Now" sent you." http://www.jimcampilongo.com/about/gear.php Uh yeah, a comment like this coming from Jim pretty much means you're the $h!t. read more

Keith is the man havent talked to him in 15 years but showed up at his shop and it was like old times. The master schooled marshall as always and like the phoenix rose my amp from the ashes. If you want honest opinions, fair prices and your amp fixed right the amp lab has been solid since my hair was long and spandex was cool!!! shellhead read more

Keith is THE man when it comes to amp repair. Yes, his wait times are long...but if you want the repair done CORRECTLY with great attention to detail, for a fair price...bring your stuff to the amp lab. Drop it off, forget about it for a while...then you'll get the call it's done...and it's AMAZING. Had him refurb a Marshall 7400 bass amp some years ago, and it still is working flawlessly, he even greased the faders on the EQ and replaced a mounting chassis bolt that I didn't think was possible to get. Today I picked up my 1973 Orange OR80. I bought it sight unseen; it needed a few things - he even went the extra mile to shield some components to eliminate some hums and bleedthrough. The amp sings again...I had no idea if I'd like it...but I do! There are fewer and fewer people that do this kind of work, so having Keith and the Amp Lab around is a treasure. Rock on! read more

Great man and a great place to get your amp fixed. Keith is the best. There's a reason he's busy and almost always has a waiting list.

This is the place every business and professional takes their amps to for repairs. I am extremely happy with the work. Amp works perfect now. read more

Good prices and good technical advice! I got a replacement PA speaker for the elementary school I volunteer at for a very reasonable price. Thanks! read more

Keith is great. Needed my Blackstar to be checked out and repaired. It was about a month until I got the call that it was fixed, so keep in mind that it can take some time. I was in no hurry. Once I got it home and plugged in, it turned right on and was ready to scream. It's been working great ever since. read more

This guy is the worst amp repair man ... he's only open from 12-6 from Tuesday to Thursday and has a backlog of 4 months . You'd think he would work more hours to clear it but no he doesn't even warn About backlog on his website or answer phone . Keith u may as well close the place mate . What a joke . read more

I've brought several amps in for repair over the last few years. Most recently, Keith "marshallized" one channel on my Fender Deluxe Reverb. It sounds fabulous. He does excellent work, is courteous, and charges a reasonable fee. read more

Keith worked on my vintage Marshall 100 watt Super Lead and not only brought up to perfect spec, fixed sloppy work done by a prominent repair shop (since gone out of business) that I used before Keith opened his shop. We're lucky to have him in the valley. Lot of musicians here that need expert repairs. And, further benefit, Mark's Guitars is right next door! read more

I was building a Bassman tube amp based on a very old Fender schematic. I made very good progress but at first test found the amp had a really big problem. I spent three weeks with an oscilloscope trying to debug the issue and was about to give up. I found Amp Lab and brought the head to Keith. He debugged the issue and for an unbelievably reasonable price fixed the issue and repaired some other issues. He also provided detailed recommendations for improvements. Wow - it sounds incredible and Keith also gave me some great ideas for speakers. I can't recommend Amp Lab more highly. He was super knowledgeable about the schematic differences of vintage Fender amps and knew just what to look for, saving me weeks of more work and / or abandoning the project. Now I have an amazing vintage tube amp that sounds great. Thank you!! Very professional and helpful. I highly recommend Amp Lab - 5 stars and I will come back without hesitation. read more

If you have a problem with your amp, Keith is the guy to go to. I have had bad experiences with the most well known amp techs in the area, but not with Amp Lab. He is honest about the work, fair in what he charges, and someone that can be trusted with your most cherished gear. read more

I was estimated a two week wait for my amp to be repaired. Two months later and the damn thing hadn't even been touched. Pretty shocked at this sort of neglect based on the other reviews, my service was terrible. read more

Keith is the most knowledgeable tube amp guy in the Bay Area. He has kept my various amps working order for twenty plus years... and I do 160 plus gigs a year. In fact, the modifications and the repairs done at the Amp Lab have made my Marshall 6101 30th anniversaries better than stock. Not only does he fix tube amps well, Keith is a master troubleshooter. He has fixed problems with my PA that have been hard to diagnose. Keith is also one of the area's best speaker repairman. Look, if you have trouble with your music equipment, get it repaired by Keith, period! He'll tell you if it's worth fixing, and if he works on it, it will be better than new. read more

Keith is a cool guy and great when it comes to amp problems. I recently bought a used Fender Blues Jr limited edition that had an annoying rattle/buzzing on certain notes when playing at higher volumes that was driving me nuts and I couldn't figure out. Keith looked at my amp right away and was able to diagnose it very quickly. He found a missing screw and some other loose screws on the pc boards and also a microphonic tube. He fixed the amp quickly and charged me a reasonable price. I used the amp with my band that night was blown away how good it sounds. Tons of power and great tone and no more rattle. Thanks Keith your a great amp tech. read more

One day my Korg M1 keyboard just wouldn't turn on. I called Gelb Music and they referred me to Amp Lab. Once I walked in, I knew I was in the right place and that if anyone could fix my keyboard, Keith could do it, and he did -- for pretty much what he estimated, less than I feared it would cost, and it took him about as long as he estimated to do the repair. I would not hesitate to refer him to friends with amp or other electronic musical instrument repairs. read more

I am thankful for Keith. He designed the circuit board that is in my old GK 400B bass head. My parents bought it for me when I was 15 years old, and I am still using it today as my main amp (I am now 48!). I recently found a second, newer 400B that has a problem. It is now with Keith being repaired. read more

Keith is as honest as it gets. I had an old Laser Disc player that was having some issues and was referred to Keith. He repaired the player and then told me he had found a small brass piece floating around in the case and he did not know where it came from but when he tested it is seemed to be working just fine. He told me to take the unit home and make sure it was up to my satisfaction and was operating well .He the told me I did not have to pay him until I took the player home and was satisfied with his work. I took the unit home and it worked great, and of course I paid him promptly. This transaction happened a few years ago and the player stiff works great, I never forgot the service I received from Keith and decided to write this review. It is a breath of fresh air when you come across someone that is as honest as Keith is. I would definitely recommend him to anyone. read more

This is the best place, most honest, most knowledgeable.. but, he gets very backed up, because he is the man. so, not the place for a quick turnaround. but, I have ben going to him for many years and the work is awesome.. read more

Go somewhere else ... pay more and get worse service. THIS IS WHERE TO GO TO GET YOUR EQUIPMENT SERVICED. Anything else is a mistake. He also re-cones speakers. Tube amps, solid state amps, keyboards, speakers, custom guitar wiring; this is the man. Take it from Juan Doggie http://thedoggies.com read more

Simply the best. All you have to do is go in see and hear the stories of the amps that are in there because they were taken someplace else first. To get it right the first time take it to Keith, you will not be sorry. read more

I had a very good experience with a repair here. Keith was very nice to work with. The price was very reasonable.