Hey everyone, just wondered if anyone might be able to help with an issue I’ve encountered.
I was just about to ship my Jet City JCA50H to another member of the forum when I decided to do a last minute check to make sure all is well. I had tested it a few weeks back at low volume but decided to give it a bit of a blast.
When I turned up the volume there was a very loud, low frequency buzzing noise on both channels, far beyond anything you’d ordinarily expect with natural hum. The buzz was present both with and without the guitar plugged in and with the channel gains turned down to a minimum. Tried several guitars (w/ buckers), power leads and speaker cables, no difference.
Feel terrible but I immediately refunded and explained the situation. Still feel bad though!
My question is does anyone have any indication as to what this might be and if it’s likely to be an easy fix? It is NOT and expensive amp and frankly if it’s gonna cost more than a few quid to sort I’d rather just scrap it and save myself the trouble.
Thanks everyone.
Comments
It may not be an expensive amp, but it's a very good one - well made and not especially difficult to work on, so it's unlikely to be expensive to fix.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
Yeah it would be a real pity to scrap it, it’s just given the value it’s a very small window to make a repair economically viable.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
Just spoke to my local tech and basically it’s gonna be £50 to get it diagnosed and likely another £50-£100 for a repair.
Think this is likely going to be a “for parts/not working” job!
Whilst I strongly agree with a tech charging a non-returnable deposit to deter time wasters and prevent the build up of junk, I think a nifty is a bit steep?
I know costs have gone ape-S since I was 'in the trade' but telephone is FAR cheaper and email is free!
Dave.
Would be happy to help out if you were a bit closer but not a lot more can be suggested remotely.
I would find another tech.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
In the meantime I’ll order a spare 12AX7 and see if that brings any joy.
Thing is I do understand this particular tech are busy and they are very good, but yeah it does feel on the high end of things.