I just recently purchased a 4B Bryston amp, 2 cerwin vega D9 and 2 cerwin vega D3 ( D3 where added to help prevent clipping)\n\nI know everyone states this should be loud enough but it's not, I like it loud. If i give it more volume than 3 o'clock it clips. I'm thinking of purchasing a second 4B and somehow running 1 amp for each side of speakers. Not really sure how it's done. \n\nAny guidance would be greatly appreciated.