I put the Kenwood KAC series as my number four on my best buy list because it is a solid design, moderately priced and readily available. At some point you will think that all amplifiers are alike but even though the KAC looks like the big black amplifiers of old, they are far more sophisticated.
The throwback design of the KAC series allows these amplifiers to blend into almost any installation and they are of course offered with a built in crossover and different power and channel configurations.
If you want a good power amp and are not so much worried about showing off your amplifiers take a look at the KAC Series.