i just purchased a pair of polk lsi9's and have a velodyne 150w sub. currently i am using an old pioneer 2ch amp. since the amp has proven inadequate it is time to upgrade. i'd like to take advantage of the lsi9's biamp capability. is there an amp that has 5ch or a 4ch with sub output? it's probably obvious that i'm trying to "biamp" with a single unit or rather a single volume knob. the ONLY input source is a cd player and occasionally my daughter's ipod. it appears that a 5.1 receiver won't do since the power output to the various channels varies. unless of course there's a 5.1 that delivers the same power to all the channels. my minimum requirements are an amp with a single input, a power switch, volume knob and output in the 100-200w range. anything over and above would just get ignored. "old school" or maybe just old is the reason for what may be a silly question. if buying two amps is the only way to get where i'm going then i may seek advice on how to explain that there are now TWO volume knobs. any and all advice and suggestions welcome.
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