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Poweramp spec help

Discussion in 'Amps and Cabs [BG]' started by Toasted, Sep 18, 2003.

  1. Toasted


    May 26, 2003
    Leeds, UK
    can someone explain these to me (a relative newbie) they are techinical specs for a power amp

    here we go:

    20 Hz - 20 kHz @ 0.1% THD, both channels driven:
    8 ohm per channel 260 W
    4 ohm per channel 400 W

    1 kHz @ 0.1% THD, both channels driven:
    8 ohm per channel 280 W 500 W
    4 ohm per channel 450 W 750 W
    2 ohm per channel 700 W 1200 W

    Bridged Mono:
    8 ohm 20 Hz - 20 kHz, 0.1% THD 800 W 1300 W
    8 ohm 1 kHz, 0.1% THD 900 W 1500 W
    4 ohm 1 kHz, 1% THD 1400 W 2400 W

    if i ran a preamp into it, and then wanted to run it into a cab from one channel say, what would cab would i need?

    could i only run one side of the amp?

    whats amp bridging?

    whats the diff between "20 Hz - 20 kHz @ 0.1% THD, both channels driven" and "1 kHz @ 0.1% THD, both channels driven"?

    thanks in advance
  2. MJ5150

    MJ5150 Terrific Twister

    Apr 12, 2001
    Olympia, WA
    Yes, you can run only one side of the amp if you wish. I am doing that now on my Crown.

    Bridging is combining both channels into one, thus getting more overall watts from the amp.

    As far as a cab goes, stick to the specs of your power amp. This is what Bob Lee told me once...."I would suggest trying to match up the amp power rating to the cabinet's program power rating, give or take maybe 20 to 25%."

    THD= Total Harmonic Distortion. It has something to do with the sound frequency quality before it becomes distorted. There are several other individuals here at TB far more qualified than I am to explain that to you.