G'day. I'm a New Member - let me begin by stating emphatically that I am completely open to the criticism of others (especially wise experienced people who really know what they are talking about). Any advice will be appreciated so talk to me as you would a small child or a loving eager labrador. I am eager to learn all things related to my system. I am a 50 year old with sever tinnitus in my left ear and mild tinnitus in my right ear (from years of playing live music and being a DJ). 10 years ago I stopped listening to HiFi music to save what was left of my precious hearing. I actually enjoyed listing to music through my MacBookPro because the sound was tiny. BUT 5 years ago I thought "if I put a high end/ish (limited by a poor man budget) system together maybe I could re-create the beautiful sound my Dad used to get in the mid 80's with his brilliant Marantz Gold HiFi". Dad raised our entire family on great music. The idea was simple enough: buy great speakers and a great amp on the used market and see if I could produce high quality, creamy toned and warm balanced music. I've gathered : (all second hand) Cambridge Audio Azur 752BD DAC (for hi res SACD stereo and 5.1 mix) AU$750.00 Pioneer PD-F1007 300 disc CD Player AU$40.00 Yamaha RXV-3800 140W 8hm Flagship 7.1 AV Surround Receiver (24/96 hi res) AU$350.00 Focal 836V 240W 8hm Towers AU$1,500.00 Focal 807V 160W 8hm Bookshelf and stands AU$900.00 Focal SW700S sub AU$400.00 Samsung 46inch Series 6 Full HD TV $250.00 I am currently running the two sets of speakers in 7 Channel Stereo Soon hopefully I will add Focal 800cc Centre, and Focal 826V's Towers (if I can get them for $1,000.00) A question? Do I loose any power or volume or sound quality when drawing on multiple channels (i.e. when I run 2 or three sets of speakers). And if so what can I do about it. I see some people here run out of their multichannel AV to a stereo tube amp or second power stereo amp for the front mains. I ask because I am seeking the best and most efficient sound I can get (and afford). I could be very wrong here but I have a mate who is selling a Yamaha RXV-3800 (same model as I use). If I got a second amp am I getting any benefits at all by running the mains from one amp and the rears and centre from another? Here's my logic (and it may very well be naive of me): If I run the one amp and draw on 5 or 7 Channels I am stressing the amp. So by running the Main L and R through amp 1 (by sending the front L and R from my BD752 surround RCA multichannel output) and running the Centre and Surround Rears (by sending the centre and Surround L and R from my BD752 surround RCA output) through the second amp am I gaining anything? My logic is to use 2 cheap second hand amps to take on a heavy load when running multi 240W and 160W Speakers through the amps 140W channels. Or do multi channel AV Receivers handle outputting all their channels really well?