Ampeg svt cl fan question

[Jim C]

You might try some rubber washers (I used rubber bushings) between the fan and the front panel on a CL.
When I replaced my fan (it got really noisy as it got old) I thought I'd try and see if mechanically isolating the fan made much difference. It made my CL a little quieter and it is working great.

 

[GrayGoesBlack]

I love this original post. The obvious answer is “SVT’s are industrial tools like 2179ft/lbs JD 9R 640’s, get a PF20/50T+2x115 or a refurbed B15n on a matching extension cab to use for being at home bathed in bass in the comfort of a nice chair.”

I can’t believe the idea has been posed to un connectify the fanny thingy ma doodle pop on such a thing. It was designed to carry the bass for large outdoor festivals.

Haha, I know, right? I love it when the fan of my Ampeg starts blowing, it means we're ready to ROCK!

 

[beans-on-toast]

It's not just the warranty. The fan is part of the safety certification and is required to carry specific UL and IEC/VDE certification in order to be able to even be used in a 60065/62368 certified compliant amplifier. Ampeg/Yamaha chose to follow the regulations, some (usually larger or more established) companies are rule followers and other companies not so much.

A fan from a reputable manufacturer will have the certifications displayed. I worry about people using the junk that’s out there. Some even fake certifications or put reference numbers that have nothing to do with the certification at hand.

Fender used to put patent numbers on their schematics that nothing to do with the amp’s design. I think it was more about dissuading people from cloning their product. But this isn’t the same as fake safety certifications.

Many players complain about fan noise and wish that quieter products were used. It’s a common complaint.

 

[Grossthing]

That's not a surprise, since their safety certifications require a specific fan. That's what was required to pass the safety certification testing so of course they aren't going to tell you otherwise (and for good reason IMO).

If the amp doesn't work for you because it's the wrong tool for YOUR needs, that's just the way it goes. Just find something that works better for you.

Fair enough, and I have. But not before the headache of buying three ampeg heads only to discover that the fans all compete with the instrument, and on two brand new Heritage amps. Not the right tool for my needs doesn't quite seem to understand why the thread exists or why people complain about ampeg fans or why people mod their stuff and ask for help on how to mod. A forum of people telling you to do nothing and just accept the status quo offer nothing to the conversation. Thanks anyway though.

 

[agedhorse]

Fair enough, and I have. But not before the headache of buying three ampeg heads only to discover that the fans all compete with the instrument, and on two brand new Heritage amps. Not the right tool for my needs doesn't quite seem to understand why the thread exists or why people complain about ampeg fans or why people mod their stuff and ask for help on how to mod. A forum of people telling you to do nothing and just accept the status quo offer nothing to the conversation. Thanks anyway though.

Actually, it offers good, accurate, factual advice even if it’s not what you want to hear. It’s pretty simple actually.

 

[jimmydean]

Just bought a Ampeg Micro amp/cab and the fan is annoyingly loud and runs constantly . Rather than returning the amp , I installed a heat/fan sensor module which solved the problem .

 

[agedhorse]

Just bought a Ampeg Micro amp/cab and the fan is annoyingly loud and runs constantly . Rather than returning the amp , I installed a heat/fan sensor module which solved the problem .

Which of the multiple points did you sense? If just sensing the air without the fan actually running, you just opened the thermal control loop.

IME, this is a DIY fix with significant pitfalls.