You cannot generalize the SQ of the entire class of amplifiers. This has been discussed many times. I hope this thread does not degenerate into a long class ab vs d flame fest again. But to give you an example, JL Audio's HD amplifiers are some of best SQ amplifiers, and are seen competing well in SQ competitions.. so here is a great counter-example to the view that Class D amplifiers don't have enough SQ. The sound signature _can_ be different even between the amplifiers of the same class, but this may not be better or worse. It's like choosing between different brand vanilla ice creams.
2ohm stable even though it is labeled as 4ohm stable?
Some are rated 2 ohm stable from the factory, the 2ch they make thats not 2 ohm stable is the gta 602, the rest are all 2 ohm stable bridged, sometime they only list it under the 12v rating, like with the gta 275, but if you look at the 12v rating for the gt275 it shows a power rating at 2 ohms bridged. The GTA 2125 which is what op is asking about is rated for 600rms @ 2 ohms bridged at 14.4v.
