Noisy Ampeg

[mildmanofrock]

I recently bought an Ampeg SVT-6 Pro from the US. I sent it to authorised Ampeg repair people, Panic Music in Cambridge to do a voltage conversion.

It arrived in today and all seems fine, except... the fan is is pretty noisy and makes a constant whirring/humming noise. An odd thing also happens when I switch it off... the green power light goes off, then the fan whines angrily and the red peak light comes on... then it switches off as it should.

Are all Ampeg's like this or is mine buggered? I'm not having much luck...

Edited June 22, 2007 by mildmanofrock

[Hamster]

[quote name='mildmanofrock' post='22134' date='Jun 22 2007, 09:20 PM']I recently bought an Ampeg SVT-6 Pro from the US. I sent it to authorised Ampeg repair people, Panic Music in Cambridge to do a voltage conversion.

It arrived in today and all seems fine, except... the fan is is pretty noisy and makes a constant whirring/humming noise. An odd thing also happens when I switch it off... the green power light goes off, then the fan whines angrily and the red peak light comes on... then it switches off as it should.

Are all Ampeg's like this or is mine buggered? I'm not having much luck... [/quote]

Hi

Where abouts in the UK are you based?

Hamster

[wizbat]

Do you know if the fan was changed as well? my svt2,s have mains voltage fans and yours may have too.

[mildmanofrock]

[quote name='wizbat' post='22195' date='Jun 22 2007, 11:09 PM']Do you know if the fan was changed as well? my svt2,s have mains voltage fans and yours may have too.[/quote]

Hi Wizbat, no I don't think the fan was changed. Is your ampeg quite noisy too?

[PauBass]

I've got an Amgeg SVT 4Pro that was also converted by Mike from Panic Music and I can tell you that the fan doesn't make any noise at all...

I can not tell you for sure if there is something wrong with yours but mine doesn't make any whirring/humming noise.

I suggest you give them a call and let them know about this problem.

[mildmanofrock]

[quote name='PauBass' post='22411' date='Jun 23 2007, 05:51 PM']

I've got an Amgeg SVT 4Pro that was also converted by Mike from Panic Music and I can tell you that the fan doesn't make any noise at all...

I can not tell you for sure if there is something wrong with yours but mine doesn't make any whirring/humming noise.

I suggest you give them a call and let them know about this problem.[/quote]

Strange - I called Mike earlier and he said fan noise was perfectly normal - that it's a variable system that speeds up and slows down depending on how much ventilation's needed.

[PauBass]

[quote name='mildmanofrock' post='22417' date='Jun 23 2007, 06:00 PM']Strange - I called Mike earlier and he said fan noise was perfectly normal - that it's a variable system that speeds up and slows down depending on how much ventilation's needed. [/quote]

I don't know what to tell you but, as I said on my previous post, my SVT 4Pro works fine and doesn't make any noise.

[Muppet]

I too have a 4PRO (which Mike has serviced in the past). The fan only comes on when the unit needs it, though this is anything from one minute to five minutes from turn on and is variable in speed. The fan is not absoutely silent if listened to in a quiet room but in normal use I'd be pushed to tell you it was running unless I felt the unit.

I must admit I switch my unit on to mute before I switch it off and when mute is on, the peak light is lit, so I'd not necessarily experience what you're getting. I guess something could have happened in transit, but seeing as I live very close to Panic I tend to drop off and collect everything myself..

To be honest, I'd go with what Mikes tells you - you have a warranty for the conversion remember. Try it in a gig situation and see what you think. What cab have you got it connected to?

[mildmanofrock]

[quote name='Muppet' post='22458' date='Jun 23 2007, 08:17 PM']I too have a 4PRO (which Mike has serviced in the past). The fan only comes on when the unit needs it, though this is anything from one minute to five minutes from turn on and is variable in speed. The fan is not absoutely silent if listened to in a quiet room but in normal use I'd be pushed to tell you it was running unless I felt the unit.

I must admit I switch my unit on to mute before I switch it off and when mute is on, the peak light is lit, so I'd not necessarily experience what you're getting. I guess something could have happened in transit, but seeing as I live very close to Panic I tend to drop off and collect everything myself..

To be honest, I'd go with what Mikes tells you - you have a warranty for the conversion remember. Try it in a gig situation and see what you think. What cab have you got it connected to?[/quote]

I really wouldn't mind but it's so bloody noisy. It starts of whirring and then goes to a high-pitched whine - a bit like an old VCR rewinding - the high-pitched drone when they rewind to the beginning of the tape.

If that's how it is, I can't live with it. Doing a quiet number - acoustic, maybe - would be a nightmare.

[Muppet]

[quote name='mildmanofrock' post='22475' date='Jun 23 2007, 09:10 PM']I really wouldn't mind but it's so bloody noisy. It starts of whirring and then goes to a high-pitched whine - a bit like an old VCR rewinding - the high-pitched drone when they rewind to the beginning of the tape.

If that's how it is, I can't live with it. Doing a quiet number - acoustic, maybe - would be a nightmare.[/quote]

OK well I certainly don't get that under any circumstances. The fan is certainly quiet enough to be able to play acoustically. I would liken my fan to the sound of a regular desktop computer if that helps at all?

[Spikyhedgehog]

The sound is from the fan and not the speaker right?

[wizbat]

[quote name='mildmanofrock' post='22291' date='Jun 23 2007, 11:18 AM']Hi Wizbat, no I don't think the fan was changed. Is your ampeg quite noisy too?[/quote]

My amps are very quiet and the fans make hardly any noise at all, I am running extra rack mounted fans at the rear of my amps and they make more noise than anything else.