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Re: [Amps] Drake L-4B fan - too small and too slow?

Subject: Re: [Amps] Drake L-4B fan - too small and too slow?
From: Jason Buchanan <>
Date: Wed, 28 Dec 2005 21:48:49 -0500
List-post: <>
Jason Buchanan wrote:

>The Dayton 4C761 fan is rated at 50CFM, 2840RPM, 115VAC 60hz.  If you 
>reduced the input voltage i'm sure it would handle the 50Hz AC.  You'd 
>probably want to do this since this fan pushes a lot of air and is a 
>little noisy. 

Ok, I couldn't resist.  I had to plug it in and play with it.

It's not as loud as I thought.  With a bit of back pressure it's fairly 
quiet actually.  I would say it's a tad louder than the AL-811 I have, 
but the AL-811 cabinet resonates at a lower pitch (guessing 500hz) where 
this little fan has a higher pitch (guessing 900hz). 

The intake of the squirrel cage Dayton fan is the same diameter as the 
hole in the L4 - a couple small screw holes drilled in the L4 chassis 
and some self-tapping screws will hold it nicely.  You'd probably want 
to isolate it with some rubber washers.


Jason Buchanan - Boxboro, MA

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