I can not find info on this amp anywhere - it's a 1990's (early) Pioneer GM-800 - it's a small amp, I think it's a 4x25 @ 4ohms but is not one of the GM-H series, it's got no major heat sinks, I am going to be using GM H100+GM H200 amps for my subs, 6 inch and 4" mids....I plan on using a 1" JBL titanium tweeter and was thinking of a GM H100 or H50 to run them, but does anyone know if this GM 800 is a SQ amp? I am not too worried about how it will "look" for the moment, til I find a nice GM H50/100 to replace it....if you have a link to specs on the GM 800 I would appreciate it (I am looking for THD @4 ohms, watts RMS, and freq response and maybe snr) thanks