Newbie needs help with power amps

Discussion in 'Hi-Fi and General Audio' started by MartinL, Jul 25, 2020.

  1. MartinL


    Jul 25, 2020
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    Hi all

    I currently have an Audiolab CD player linked to a Yamaha cinema amp which also runs my surround system. Recently I have found myself listening to more music and have a large CD collection so am thinking of buying a pair of Audiolab 8000mx or the like to run from the RCA out on the amp and to bi-wire my Acoustic Energy AE120s. My room is only about 14ft square.

    Any advice on the Audiolabs or equivalents would be very much appreciated.

    Thanks, Martin
    MartinL, Jul 25, 2020
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  2. MartinL


    May 31, 2012
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    I really wouldn't bother! Passive bi-amping as you're proposing is a complete con, designed to sell more power amps but incapable of making any difference. For why not, look up the Superposition Principle. Passive Bi-amping is the more expensive version of bi-wiring, which itself was a way to sell more 'speaker cable.

    Active bi-amping, where the passive crossover is replaced by an active crossover before the power amps does make a difference if done well, especially where the crossover is done in DSP as that can also apply EQ and improve both frequency response and pair-matching.

    Passive Bi-amping does nothing except make the dealer that bit richer and you that bit poorer.

    Sergeauckland, Aug 2, 2020
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