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Bridging 101 and Mono/Stereo 101

Discussion in 'Amps and Cabs [BG]' started by MEKer, Aug 31, 2008.

  1. MEKer

    MEKer Supporting member

    May 30, 2006
    Can our experts in this out there succinctly put this together? I searched and found snippets (like make sure bridging cables have sleeve over metal), etc., but here are the following questions for this general rule o' thumb primer:

    1. Definition and purpose
    2. Easiest grasp of doing it
    3. Best amps for it

    1. Needed purposes--the big Why
    2. Easiest grasp of doing it
    3. Best amps for it

    Thanks a bunch

    Please assume everybody is not a DIY, get out the schematics and soldering irons person. Maybe this can be a sticky?
  2. bongomania

    bongomania Gold Supporting Member Commercial User

    Oct 17, 2005
    PDX, OR
    owner, OVNIFX and OVNILabs
    1) combine the wattage of two separate power amps, each side of a two-channel amp, into one high-wattage output.
    2) Buy a two-channel power amp with bridgeable outputs and read the manual for directions on how to do it. The manual is necessary because there is not one universal system for bridging.
    3) Any two-channel power amp that specifically says the output can be bridged into the speaker load you have. Not all 2-chan amps can be bridged, and even the ones that can be bridged don't all bridge at every ohm load.

    1) Useless on low frequencies, as lows are nondirectional. Useful on mids and highs if you want to create stereo effects like panning left-right, or sending a chorused signal to one side and a clean signal to the other, or using a stereo ping-pong delay. Again though, if your signal is mostly lows then don't waste your money/time.
    2) Signal gets split from one channel into two, like using a Y cable. Each channel may now be processed independently and amplified independently into separate speaker cabs. That's it.
    3) Any two-channel power amp, and any two speaker cabs that will work with that amp. The signal may be split by an effects unit, or a preamp with dual outputs; also many 2-chan power amps are able to send a mono input signal to both amp channels equally.
  3. MEKer

    MEKer Supporting member

    May 30, 2006
    Great, bongomania! Much appreciated and hope it helps everyone with an interest in it. So very well put.
    Best to you from Medford!

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