This place was recommended to me by my guitar tech. I had 2 amps that needed attention and George took good care of me. Amps came back good as new. The location is somewhat of a challenge to find but once you're there you'll never forget it. I highly recommend their services. read more

Brought an old KRK subwoofer with power issues. Straight forward, fair pricing, and good customer service!

I've been a customer for over 10 years. I've recommended my family and friends. They do the best work on the equipment you care for.

George is amazing! I've had a few issues with an older (1995) Trace Elliot bass amp, and he's managed to take care of everything within an honest timeline, fair prices, and even takes the time to patiently explain what he's doing and why! I've been a customer since 2019, and am always happy with the GPS team! read more

GPS Electronics - Vintage Trace Elliot bass amp that George and the GPS team have kept rockin'! - Electronics Repair Near Me - Norwalk, California

George helped me with my line 6 relay. It stopped working and he took care of everything for me. He was very professional and helpful. Thank you George. read more

George fixed 2 of my 70's Vintage amps. Very knowledgeable, professional and timely. Great customer service. Highly recommend.

DO NOT USE THIS BUSINESS-- My Korg B2 keyboard had liquid damage. A friend's cat peed on a blanket that was on the keyboard. I removed the blanket immediately, wiped down the keyboard, and let it dry. I dry-wiped it after 4 days and turned it on. All keys worked and it played fine EXCEPT for 4 keys. I took it in for repairs and got a quote. My friend offered to replace it so I picked it up. I then sold it. But when he turned it on, now 45 KEYS DID NOT WORK! Why would I get a keyboard back in worse condition than when I brought it in?? When I called GPS about it, they accused ME of not telling the truth, saying that it wasn't true. "Prove it," he said. Seriously? I brought it in with 4 non-working keys and got it back with 45 non-working keys. HOW IS THIS MY FAULT? As a business person George should be ashamed of this. No apologies, nothing. So what do you think happened? Parts are hard to come by... you tell me. DO NOT USE THIS BUSINESS-- read more

GPS Electronics - Electronics Repair Near Me - Norwalk, California

I bought a keyboard from Guitar Center and the sound card went out on it. Guitar center was absolutely no help at all!!! I tried for over a month to get some help and they just did nothing! I found GPS Electronics and they got all the work done (under warranty!) Fast, reliable with amazing attention to detail and customer service! Thank you!!! read more

I have a Carvin bass head that I put a lot of mileage on from 1994-2011, when it stopped working. I contacted multiple repair shops as well as Carvin and they all told me it was beyond repair. After 12 years of sitting in my garage, my amp finally found someone who believed that it still had some life in it. George looked it over for free and a few weeks later my amp was good as new for under $150. Great people, great service. read more

This place is amazing. I have dropped off 2 Mackie thumps , and a sub. They have done quality work in a timely manor. I would recommend them always. Plus the rates are affordable, and they won't try to up-sell you on what you don't need. read more

I was referred to GPS Electronics to have a SWR bass amp inspected. GPS customer service was very prompt, courteous and extremely knowledgeable. read more

GPS Electronics - SWR Bass Amp - Electronics Repair Near Me - Norwalk, California

I found and used the best. I have an Ampeg foot pedal that has not worked since I received it. The seller on e-bay was long gone. It's a vintage pedal but 'mint' condition. No one in my area wants to work with pedals. The best response was - 'We can try, but we can't guarantee anything. But there will be a charge for diagnostics - $90.00 ' - I declined. They would not be responsible for any damages nor any warranty. So I did many Google searches and finally found GPS electronics. I spoke to George whom I found to be not only knowledgeable but pleasant to deal with. I sent this pedal to them - it was diagnosed basically DOA, but they found the problem quickly and repaired it. Seems it was wired backwards at the factory - ha! It was repaired successfully and returned quickly. It has worked perfectly. I am beyond totally satisfied. I will recommend GPS and George to any potential customer.Thank you, RichieC read more

Great work on guitar amps. Very attentive and communicative. He is also not rude and breaks down all of what he does to your item and explains why it needs to be done so you don't feel like you're going to a shysty car mechanic. Would recommend 10/10. read more

This is a little late but worthy of mention.I am usually the guy that asks questions and buys parts but this time around I wasn't capable of the repair so I left it to the pros at GPS. After dealing with an intermittent on/off issue and attempting to repair the amp myself I knew GPS would get the job done and get it done correctly without any hassle except maybe a week's wait since they're always busy as most repair shops of this nature tend to be. I would also like to mention that whenever I have a question they have an answer.I've even brought equipment to them that was beyond repair and they told me upfront. I always get a detailed answer after the repairs are done. I'm never rushed and have always been greeted and thanked after each service.I would highly recommend GPS for amplifier repair. read more

GPS Electronics - After a thorough tuneup/repair back to normal - Electronics Repair Near Me - Norwalk, California

I have owned a music store for over 30 years. We usually use a local guy that is great, but recently needed a warranty repair done. It's a long drive for us. That repair was done successfully and in the time frame they gave us. Today I called for a non warranty repair, which was somewhat complicated, but they helped me make a decision on what to do by explaining all the options, possibilities, and the time frame. I felt this was very professionally done, as he took his time, he listened to me, and helped me make a difficult decision. I would definitely recommend this business. read more

I've used GPS Electronics for all my gear. Never had an issue. I've had issues with amps (I've owned a few over the years) and one he couldn't diagnose straight away, he had me take it and play until I was able to record the issue bring back fixed it all at no extra charges. I took the amp back multiple times over the month until we found the random issue and fixed. George is honest and I've never had an issue with him or his staff. They have helped me wire up cabinets at NO CHARGE! Great place, you get what you pay for. read more

George is a good guy. He took a preamp others left for dead and figured it out. He is very trustable and won't overcharge gor tubes and whatnot. read more

Was referred here by the manufacturer of my tube bass head. Got the estimate about 2 weeks later. Please avoid at all costs. I was told it would cost an outrageous amount (over $500), and that all my Russian tubes would need to be replaced. That the war in Ukraine raised prices (don't doubt that). I declined the service. I took it to my personal tech, and he said it was a small electrical issue. He fixed it for 70 bux. My amp now works like a charm -- again. I don't like lying musical repair shops. And after many years going to many, this one is untrustworthy. HMU if you want proof of BS. Thank you. read more

These guys are great. Very knowledgeable and very professional. Just had a full re-tubing of my 6505+ and shortly afterwards a new tube went bad. They immediately took me in to fix the issue at no charge to me. Highly recommend! read more

GPS Electronics - Electronics Repair Near Me - Norwalk, California

These guys fixed up all my line 6 pedals and vox amplifiers for the last 10 years. The people there are nice, honest, and fair with their pricing! I highly recommend them! read more

If you need your amplifier repaired and you are in the Los Angeles area, I have the hot ticket for you: do not take it to your local guitar shop, because they are probably going to send it out somewhere else for repair. And that somewhere else is probably going to be GPS Electronics over in Norwalk, so go there first and cut out the middle man. GPS Electronics has been in business since 1996 and does work for music stores, the local theme parks (we have some big ones), city governments, school districts, churches, and of course everyday musicians like us. They specialize in guitar amplifier repair, but are also have tons of experience repairing PA systems, keyboard, pedals, speakers, and mixing boards. Besides retail repairs, this shop is also an authorized warranty service center for Ampeg, Crate, Fender, GK, Marshall, Peavey, Yamaha and many more manufacturers. That says a lot about the experience of the technicians and the confidence that these companies have in GPS Electronics. I recently needed to have my Ampeg B15T repaired (it had gone teats up), and I took it over to George (the G, of GPS) to have them look it over. Their shop is located in an office park and there are no big signs, so make sure you get your directions straight before you head over. From the front counter I could see a few of the repair benches in the back, and noted that the shop was tidy and the technicians were neatly dressed, and there was a metric ton of amplifiers on shelves waiting to be worked on. It seems like it would be a good place to work, not a sweatshop or filthy hell hole. George wrote up my repair order and gave me a date (about a week out) when I would receive my estimate. He called me up a week later with a very reasonable estimate ($82), and quoted me three days for repairs to be completed. Well, three days later my amplifier was done (with no extra charges) and it worked fine when I got it back. This may not sound like a big deal, but in this day and age it is difficult to find shops that do a good job, not to mention keeping the promises and commitments that they make. I wholeheartedly recommend that you give them a try. GPS Electronics is located near the 5 Freeway in Norwalk, making it a convenient drive from Los Angeles or Orange Counties. They are open Monday through Friday from 10AM to 6PM, and are closed on weekends. You can reach them at 562-802-0840, or check out their page of Facebook. read more

Came a few weeks back to fix my mackie mixer got some Bad news in regards to it but ended up buying one they had available. I was happy with my Service and was greeted at the front desk .. read more

I wanted to be able to recommend this place. Everyone I talked to was very pleasant and friendly, but unfortunately, they also seemed to have almost no knowledge of the basic functions of the instrument they were attempting to repair and after paying over $250, I am still left with a unit that is unusable. I was referred to GPS through Guitar Center when I brought in my SPD-S sampling drum pad to them. There seemed to be a problem with the connection between the pad triggers and the computer. The LCD display would turn on and all the menus would act normally. I could even listen to the pre-recorded sounds via the buttons on the front, but when I hit the pads, nothing happened. When I called GPS, they were very friendly and gave me an estimate of how long it would likely take before they could start my repair. I was hoping to be able to use the SPD-S for an upcoming gig, so I paid the extra $75 to have them start it immediately . When I got the SPD-S back home after the repair, as soon as I turned the unit on I noticed a high pitch hum or digital oscillation of sorts that came from all the outputs. It was a small annoyance, but not quite loud enough to be unusable live. The real problem was that the hum got even louder when I attempted to record samples (the instruments main feature) and permeated every sample I made. The SPD-S has a feature that allows it to start a sample recording the moment the input level reaches a certain threshold, the hum was loud enough to trigger this feature by itself. Granted, the pads now worked, but there is no way I would perform with the unit sounding like it did. I knew for a fact that there was no hum in the samples I made before the repair because they were still stored on my memory card, perfectly clean. So I called GPS and told them about the problem in as much detail as I could, making sure to emphasize that the noise was loudest when using the sample recording function. They said they would take another look at it and I made another trip to Norwalk to drop it off. A few days later I received a call from GPS. The man said he replaced something but never did notice the hum I was referring to. He said the only hum he heard was when he cranked the volume all the way and that if there were any other sounds, they were probably due to wear on the computer. I didn't know how he possibly could have missed it, so I thought maybe he fixed the problem before he listened, maybe something got jostled around on the way there and it sorted itself out, maybe the noise wasn't as noticeable as I originally thought. I am not an expert, so I gave him the benefit of the doubt. I picked it up and brought it back home and the noise was still there and definitely noticeable. When I brought it back again (my 5th trip to GPS), I made sure to bring headphones. When I arrived, the two men there told me that the person who repaired my SPD-S would be on vacation for the next couple weeks. I demonstrated the problem to them by making a sample of only the foreign noise by hitting record with nothing plugged and then triggering it with the pad. The volume was less than halfway up. The taller gentleman admitted that the noise was pretty noticeable but made no apologies. "I think he was looking for a hum. You said the noise was a hum. That's more of a high frequency oscillation." I was flabbergasted. What difference did it make what I called it. It was an obvious sound. It obviously wasn't suppose to be there. And I had quite conclusive evidence that it wasn't there before. Meanwhile, the other man was poking at the other pads saying "the noise is only on this one", referring to the pad I just sampled onto. I exasperatedly attempted to explain to him how the unit works and why the noise was only on the pad I just recorded to, but I was out of patience. I told them I would come back when the man who repaired my instrument was back from vacation. I am not looking forward to making a 6th trip to GPS. I cannot recommend them for this type of repair. For all the good this has done me, I would have been better off chucking my SPD-S in the dumpster and putting that $250 toward a new unit. read more

I'm Extremely Satisfied with This Electronics Repair Shop! George, the Owner has been fixing Amps and Electronics of All types for over 20 years. I used GPS Way back from1990 When Go-Go opened Red Duck music! George was Go-Go's Go To Guy for All Complicated Repairs! He fixed my 69 SVT AMP Head, which weighs 150 lbs. they are Hard to Handel! George fixed it with in a week and My Bass player blew it out , so it needed a new Transformer, and much more. He fixed it so Good, it was Quieter than when it was New! He also fixed my 20 Channel Yamaha board in a week and it was better than when I first bought it! His Repairs have been Excellent and lasting thru All my Extremely Hard and Loud Playing! I'm using All my Amps at very close to Max for 3-4 Hour Shows, and So Far All of GPS's Work is Doing GREAT! You Won't find a Better Guy to fix All yer Amplifier, Sound Boards, Ect... I thank Jesus fer GPS, they have Saved my ass Several Times! read more

I took a Yamaha keyboard to GPS Electronics, service person was very friendly, said all I needed was was a new power cord! Once again, THANK YOU read more

GPS Electronics is honestly one of the best places in So. Cal for amplifier repair as well as keyboard and other electronic instruments. I work for a retail music store that uses GPS for their repairs and I have seen George's shop and dealt with his staff first hand. This shop has great technicians and very fair prices. And if something is not to your liking, George is more than willing to accommodate you until you are happy. It may be a bit of a drive (especially with the freeway construction that's currently taking place on I-5 right now) but the trip is well worth it. Great little business! read more

I have been using GPS for about 10 years for repairs on my vintage Marshall amps. It can get pricey, until one considers what you're paying for: Service by full-time, knowledgeable experts in a dedicated facility. The repairs I get back sound great. These guys know their stuff. I wish there was a cheaper way to go, but I'll stick with GPS for the above reasons- and the peace of mind they entail. I've noticed some of the dissatisfied reviews here are for repairs of newer/digital equipment. Not saying GPS can't do that stuff, but will say there are no complaints from players like me, who use vintage valve amps. The one amp I've yet to bring them is my 1978 Fender Deluxe Reverb. It's about time for that one- I'm pretty sure they will get it sounding to its full potential, just like the rest. read more

It took 10 days for me get an appointment to bring in my amp, and when I came to pick it up, it was still broken and the owner said that's the say it was originally. I brought it home to test it out and it blew one of the speakers. I took it back for them to fix it and the owner told me to get out or he was going to call the police. He was rude, and very unprofessional. I'd NEVER recommend this business, PS. Amateur hour here, don't bother. read more

After being turned away due to extensive work backlog by a really popular shop in OC, my luthier recommended GPS. Boy am I glad I found this shop! I have had them repair a Marshall 2203 head, a VOX AC10 and a Fender Blues Jr, each time with a ~1-2 week turn-around and excellent results. Gear restored to original and at very reasonable prices. These guys know how to build a lasting customer-base by treating people right! read more

Took in krk 6 speaker in because KRK told me GPS would take care of the problem since I was still under the one year warranty. I called GPS to check up on the status, and claim they found nothing wrong so I must pay a bench fee of $37.50. That is the reason I am writing this review because they STILL charged me the bench fee of $37.50 and they did not fix the problem, my speaker is still malfunctioning. Client Beware read more

Oh , I forgot to mention ! ( maybe because of the grand dissapointment ) He NEVER fixed my amp ..... For the first reason I brought it in !!! It was making all kinds of staticy noises. All they did , was REPLACED a part ! But , they didn't bother To trouble shoot it !! ( any MONKEY can do that ! ) know why ???? 'Cause they are Really busy .... They have more than they can HANDLE! ! Eventually, people will catch on ...... And they will go elsewhere ! Where They aren't as ARROGANT & Greedy ... read more

These guys do great work at reasonable prices I've taken all my amps for service and they always do a great job never disappoint