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SAE Amplifier Replacement Fans

M

mikehr

New Member
Hi fellow Audiophiles
I am looking to replace the cooling fans in the 2400, 2500 and 2600 SAE power amplifiers. The fans are working properly but are a bit noisy, not mechanically but too noisy due to air movement in a quieter listening environment. I was thinking that a lower cfm fan with a lower noise level would be just fine especially since these are not being driven hard in a pro audio application. I see that they work on AC direct from the mains 120 ac voltage so there are many options. Any thoughts...
Thanks for you help,

Mike
 
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May not be a good idea to reduce the CFM, as that is an engineering heat dissipation design issue. The fan blade design is your real issue. Maybe someone will post some better substitutes. OTOH look at the fans and see if they need cleaning. Or even better amp placement in your listening area.
 
If the cooling fans are functionally fine, but noisy, thats the way they were designed, and I wouldn't replace them. I had a power amp with a cooling fan that was noisey, but was thermally controlled to run at a low speed most of the time. Low speed was really just a resistor in series, and would probably try something like this first. Recall working on a project that had a noisy 4" computer boxer fan, and was asked to quiet it down. Replaced the 4" fan with a 6" fan, and ran it at 1/2 speed with a speed cotroller. Guys in the lab were laughing when I was doing this, but didn't hear peep when I was done. Also had air measurement tools, so air flow was about the same.
 
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