Originally Posted by Knucklehead90
The 325 is about 8-9 years old IIRC. Thats the newest of the ones you are asking about I think - not quite sure but the other two look quite old by comparison. If the 325 in good shape it should be fine for what you want to do. Its amp is very similar in specs to the AVR 520 I owned for many years. Great sounding AVR but antiquated video switching - no HDMI. Sound was very good. It should be able to drive any speaker you want short of planars.
I have a HK AVR-325 and I love it. Definitely a little long in the tooth but very stable and powerful. This baby weighs 40lbs with a large power supply! Should have no problem driving most speakers. I use mine every day in my office.
The only nitpicks are that it takes a second or two to lock onto a digital audio signal (optical or coax). The remote is just okay, nothing special. And you have to connect a composite or s-video cable to setup the On Screen Display and speaker/input configs.
I love the flexiblity of the inputs, crossovers settings, etc. One of the only brand receivers where you setup the DVD input for 7.1 but have the tuner or video input only setup for 5.1. Each input can have its own channel level adjustments too. Its very configurable but can get confusing if you don't know what you're doing. I'd advise a newbie to go with global settings.
I would definitely take the 325 over those much older HK receivers.
I have my DirecTV HD receiver plugged in via optical and my PC just using the stereo analog inputs. Both work very well. I plug in my Droid every once in a while using the mini plug to stereo RCA cable.