AVS Forum Special Member
Join Date: Mar 2001
Location: Corpus Christi, TX USA
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Not sure what you mean by that – the AVR has amplifiers built-in.
A basic stereo amplifier is a simple device – two inputs, and connections for two speakers. Your computer will need an analog audio output for any amplifier or powered speakers.
As far as what to buy, Audiosource is one source for low-cost decent quality amplifiers. Do a search for “75 watt audio amplifier” and I’m sure you can find others. Just avoid Pyle and other no-name brands.
But really, I’m really more in line with your idea to ditch the outboard amplifier and just get powered speakers. There are so many of them on the market to choose from, in all price ranges, it makes no sense to give up precious office space for an amplifier for passive speakers. However, I’d suggest upping your budget – a $120 pair of computer speakers isn’t likely to sound as good as your Polks.
For active speakers, I’d recommend the superb Swans M200. Audioengine is another excellent option.
Wayne A. Pflughaupt