Problems with my Marshall amp...

Topic: Problems with my Marshall amp...

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Posted at April 27, 2016, 5:34 pm:

Back in July I bought a Marshal amp and now its giving me some problems.
When I turn the amp on it makes this weird noise, it sounds like the cooling fan’s motor is dying, or is just having problems starting up. It makes this noise for about 2 minutes then stops.

The amp crackles like crazy when I'm not playing.
If my gain is up above 4 it crackles. I play with my gain at 10 and as soon as I stop hitting the strings, in comes the crackle.
And, the best part.
When I unplug my guitar cord from the amp (while the amp is on) the crackle is way bad, by far worse than the crackle when I'm plugged into the amp.

Is there something that I’m doing wrong? Or didn’t do? I read over the Marshal booklet that came with the amp, and there wasn’t really any troubleshooting in there.

Any help at all would be greatly appreciated.

Original of the message was taken from http://www.sputnikmusic.com/forums/

Replies:

Which Marshall?

sorry.

It sounds to me like you have a bad speaker.

I bet MG if the cooling fan goes psycho.

/\ Why not? It is perfectly ok to unplug you guitar whil the amp is on...

But I meant do not umplugg from the guitar.

It doesn't like, it just maks a nasty popping sound if you unplug from...

I know that.

hmm, well, it is a Marshall, and an AVT at that, things such as this s...

are you sure? I can swear I've heard that it jacks up the speaker.

I talked to a lot of people and 7 out of 10 told me to go with a Marsh...

I doubt they meant AVT.

VINTAGE Marshalls are great.

^^^123, exactly

hmmm.

What will you be playing? I'd say go for a tube combo, used always hel...

for $700 look for a Peavey 6505 or 5150 on eBay

123.

I'll be playing rock music.

yeah, look into a Valve King too.

Do you have a link to one you might suggest? Or just the brand in gene...

That's part of your problem there.

Take it to a shop.

i just got a 6505+ and it'll kick the **** out of any marshall any day...

Hmm, isn't that what Marshall distortion sounds like?

I bought the amp new.

That's like trading for a Geo Metro.

Don't trade it in for an MG.

something i wrote

By "speaker emulation" do you mean the FDD thing?

I love the Marshall bashing in here.

I'm not sold out to Marshall, and I'm open to other amps.

My JCM is only 50w valve, I've never, EVER had to go above 4 on the vo...

I turned mine up to 8.

I like my valvestate quite a bit (VS85R).

An artist playing a huge stadium concert would seldom need a 100 watt ...

no, i was talking about the line out, but the FDD thing does make one ...

yeah im lookin into buying a jcm800, a 50watt combo, soon, anyone wann...

The amp is completely unusable without that little switch thing depres...

I lol'd when he linked us to the MG, the only reason you'd ever need 1...

oh, I did not know that.

oooo If that's tru then.

look at Peavey 5150/6505s, Peavey Valve Kings, and Peavey XXX's

I was talking to a guitar player this weekend that has been playing gu...

yea Marshall is going downhill.

Topic: Problems with my Marshall amp...

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