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  1. #1
    AR Newbie Registered Member
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    Question Big power amp, or smaller bridged amps??

    Which is the best?

    Having one large very powerful amp, or having 2 less powerful bridged amps to make up the same power?

    Which would sound beter? or does it depend on many things?

    i don't know much about bridging, u see, so my questions might be a bit vague...
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  2. #2
    Silence of the spam Site Moderator Geoffcin's Avatar
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    Quote Originally Posted by fishsponge
    Which is the best?

    Having one large very powerful amp, or having 2 less powerful bridged amps to make up the same power?

    Which would sound beter? or does it depend on many things?

    i don't know much about bridging, u see, so my questions might be a bit vague...
    All other things being equal it's better to have the more powerful amp. When you bridge an amp each side "sees" 1/2 the load. So if you are driving an 8 ohm speaker each side would see a 4 ohm load. If the load dips below 8 ohms, say to 4 ohms, then each side of a bridged amp sees 2 ohms and could become unstable. Some amps, like my PS Audio are stable into 2 ohms or lower so this may not be a problem for you.
    Audio;
    Ming Da MC34-AB 75wpc
    PS Audio Classic 250. 500wpc into 4 ohms.
    PS Audio 4.5 preamp,
    Marantz 6170 TT Shure M97e cart.
    Arcam Alpha 9 CD.- 24 bit dCS Ring DAC.
    Magnepan 3.6r speakers Oak/black,

  3. #3
    Forum Regular FLZapped's Avatar
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    Quote Originally Posted by fishsponge
    Which is the best?

    Having one large very powerful amp, or having 2 less powerful bridged amps to make up the same power?

    Which would sound beter? or does it depend on many things?

    i don't know much about bridging, u see, so my questions might be a bit vague...

    I would stick with one amp.

    Bridging, while it increases the max power by a realistic 3x(4x theoretical), it comes at the price of higher distortion.

    I also doubt that you'd really be saving any money for all the added complexity.

    -Bruce

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