Vox AC30S1 repair
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Thread: Vox AC30S1 repair

  1. #1


    Join Date: Jul 2013
    Location: Massachusetts
    ME: Jackson SLSMG
    Rig: Vox AC30S1

    iTrader: 0

    Vox AC30S1 repair

    Can anyone recommend an amp tech in the Boston area to whom I can take my Vox AC30S1 for repair? I love its sound, but I am having problems. The input jack keeps coming out when I remove the guitar cord. Also, sometimes I lose the sound, especially when I turn the gain knob past 12 noon.

    I would appreciate any tips or amp tech recommendations.

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  3. #2


    Join Date: Jan 2014
    Location: IL
    ME: LTD EC 1000
    Rig: EVH 5150 III EL34 50watt

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    I dont live anywhere near boston but a google search turned up this place:

    Musical Instrument Service Center


    Its getting harder and harder to find places that services amps nowadays. Almost to the point where you have to ship them off to somebody.

  4. #3


    Join Date: Jul 2013
    Location: Massachusetts
    ME: Jackson SLSMG
    Rig: Vox AC30S1

    iTrader: 0

    Thanks, WombCannon.

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  6. #4


    Join Date: Sep 2008
    Location: Somerville, Ma
    ME: Suhr Modern 7
    MA: Martin MC16-GTE
    MB: Squier 5 string P-bass
    Rig: Mark V

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    Boston area guy here, and the only time I'd ever had an amp shipped off for some work, it was so long ago I don't remember where and for some reason I suspect the guy may no longer be in business. Might be worth asking a few better guitar shop if they have an in-house repair guy or a repair guy they outsource to, though?
    "They can kill you, but the legalities of eating you are a bit dicier." - David Foster Wallace

  7. #5


    Join Date: Sep 2008
    Location: Arizona
    ME: Ibanez
    Rig: Mesa JP-2C

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    Quote Originally Posted by Henry Terry View Post
    Can anyone recommend an amp tech in the Boston area to whom I can take my Vox AC30S1 for repair? I love its sound, but I am having problems. The input jack keeps coming out when I remove the guitar cord. Also, sometimes I lose the sound, especially when I turn the gain knob past 12 noon.

    I would appreciate any tips or amp tech recommendations.
    How handy are you with a soldering iron? It's possible those two are really simple fixes. I'd start with a new input jack, and see what that solves. If you're handy enough to replace that, which is only a few connections, you could check into what potentiometer they used for the gain knob and try to replace that too. If you replace the pot and it's not the problem, at least you've fixed the easy and most likely things, and you can probably do it for under $20-$30 if you DIY.

  8. #6


    Join Date: Jul 2013
    Location: Massachusetts
    ME: Jackson SLSMG
    Rig: Vox AC30S1

    iTrader: 0

    Thank you WombCannon, Drew and Vince for your suggestions. Presently, I am doing nothing about the problems with my Vox AC30S1, because the amp is not now exhibiting the problem behavior.

    I bought the amp in April at the Guitar Center in Boston near Fenway Park. Because the amp is still under warranty, I went to the Vox website to find out how to make a warranty claim. The website said to take the amp to one of Vox's Service Centers and explained how to find one nearby.

    There were three Service Centers listed for the Boston area: Musical Instrument Service Center in Boston; West Suburban Electronics in Newton; and High Tech Electronic Service in Methuen, which I consider to be too far from Boston to be considered "Boston area."

    All three Service Centers had negative reviews about their amp service.

    Also, the one in Boston is in a location which makes it impossible to park if I drive there. I cannot take the amp on public transportation. It is too heavy for me to carry more than a block. The specifications state that it weighs 54 pounds. However, it feels much heavier. I once had a Marshall stack, and it was easier for me to carry a 1960A cab and a 1960B cab up and down a flight of stairs than it is for me to carry the Vox to the street to put in my car.

    Friday, I took the amp to the Service Center in Newton. The proprietor seemed skeptical of my claim. He interrogated me about the number of times the problems occurred. He became especially skeptical when he plugged a guitar cord into the input jack several times, and the jack did not come out. He told me that if the problems I described did not occur when he examined the amp, then Vox would assume that there is no problem, and I would have to pay him $ 45 for his time.

    I decided not to leave my amp with him. I would not have minded paying $ 45 for him to look at the amp. However, if it did not exhibit the problems for him, he would not do any trouble shooting, and I would be left with an amp that I would have to consider unreliable.

    Vince, I am not handy with a soldering iron. I am what a friend once described as a "mechanical moron." I remember years ago I used to help with the staging for my teenage daughter's ballet company. After working with me, one of the other dads commented that I was fun to work with but he would not leave me alone with a screwdriver.


    Saturday, I turned on the amp, and it worked fine. So now I will "wait and see."

    The guy in Newton mentioned that the intermittent loss of sound may be due to a defective tube. If/when the problem occurs again, I will try changing the tubes. I have a set of NOS tubes that I bought more than 15 years ago for a Fender '65 Deluxe Reverb Reissue. The power tubes for the two amps are different, but both use 12AX7s.

    Meanwhile, I have no pending gigs at the TD Garden in Boston.

    I really like the Vox AC30S1. For decades, I have played Fenders, Peaveys and Marshalls. Then a couple of years ago, I bought a used Vox AC15C1 and instantly liked the "Vox sound." However, I did not like having two channels and tremolo, so I sold it. Then Vox introduced the AC30S1 - one channel and five knobs - and I had to have one. I have been very pleased with the sound and the simplicity.
    Last edited by Henry Terry; 09-26-2019 at 05:33 PM.

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