Written on: 03/01/2009
Lots of power and features. Thoroughly trashed reputation means low price.
They come with the fan in backwards. Thoroughly trashed reputation means low resale price.
This is my second Nady SPA series amp. The first was an SPA1400. They both had their fans blowing to the back, contrary to the manual, and stated features bullet. This appears to be why so many users have had these amps shut down. I basically stole the amps on EBay, turned the fans around in the amps, and put the top back on. This process will require only a phillips screwdriver and a little time. I have not tried high power into low impedance for an extended time, yet. 8 ohms stereo is working great, though.
I'd recommend picking one up, if you can get one dirt-cheap, as I did. I got the 1400 for $135 delivered, and the 2500 for only $120, also delivered. Make sure that they are cooling correctly, and you'll be enjoying the best dollar-per-watt ratio out there.