First of all, great freakin' thread! I am learning so much about amp electronics it's not funny...I love AVS.
Can anyone comment on the Dayton SPA1000, now? It is being hailed on PE.com as "newly redesigned"...I had the SPA500 pushing an Epic 12 and first thing I noticed was clipping started really early @ 30hz and below, like say with gain barely @ 1/3rd and sub output on AVR at -6db...based upon the measurements taken of that 1000w rack amp a few years back on this thread, it means my SPA500 was probably only pushing 250-300 watts @ 20hz, right? So the 1000 (which is what, same amp as SPA500 minus some power regulation circuitry and a bigger heat sink?) should get me where I need to be, at about 600?
In any event, since I have a DIY box with the cutout for a Dayton plate amp, the SPA1000 went on sale for the same price I paid for the 500, so I'm swapping them out...hopefully I'll hear a difference, although I was hitting 130db+, at the driver, on a 50hz sine wave with the SPA500 and over 114db @ 18hz in a 3.4cu ft sealed box...will be interesting to see what the difference is, if any (although on paper twice the power gets a 3db gain right?).
Can anyone say what they have changed in the Dayton plate amps since this infamous test?
Edited by mfrey0118 - 10/30/12 at 7:31am