Step-by-Step QSC Pro amplifier Quiet Fan Upgrade

Discussion in 'Home Theater Projects' started by Rob Formica, Mar 15, 2004.

  1. Rob Formica

    Rob Formica Stunt Coordinator

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    Ok... just thought I’d post a link to my new “how-to” page I set up.

    For those who don’t already know, I’m using a DIY Stryke AV15 subwoofer powered by a Pro JBL MPC200 amplifier. As most pro amps, it has a fan which is audible when the music is very low or when music/movie has large volume variations. Following posts on www.harmonicdiscord.com forums about upgrading the factory high-velocity fans in QSC amplifiers with silent units, I decided to try the same with my amplifier. You can check it out at:

    Step-by-Step QSC (JBL) Pro amplifier Quiet Fan Upgrade

    For reference, my amp is actually identical to the QSC CX4 which has a continuously variable fan to keep it cool. According to QSC it should be similar to PLX series amp, while the RMX amps are slightly noisier since they use only two speed fans.

    Hoping it’ll help someone else considering the upgrade...
    Later...
    Rob
     
  2. Mark Seaton

    Mark Seaton Supporting Actor

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    Mark Seaton
    Just an FYI, if you are looking to purchase a new amp and are considering doing this upgrade, be sure to take a look at the new SRA series. The fan on these is very quiet, and already has appropriate inputs with the capability of incorporating a DSP-3 or DSP-4 module.
     
  3. dave alan

    dave alan Second Unit

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    Mark,

    Thanks for the heads up. Do you have a link to a good supplier?
     

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