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closed back vs open back vs front ports

Discussion in 'Shock Brother's DIY Amps' started by AndyPanda, Dec 5, 2019.

  1. AndyPanda

    AndyPanda Tele-Holic

    Sep 4, 2019
    Bay Area, California
    In the second video, when you have both speakers playing it sounds like the speakers are out of phase with each other as all the bottom drops out and the sound gets "far away" sounding. Have you ever checked the speakers with a 9 volt battery to confirm both cones move the same direction?

    Pretty cool idea to open the back and use it as an amp tilt-back!
  2. GoldDeluxe5E3

    GoldDeluxe5E3 Tele-Afflicted Silver Supporter

    Aug 5, 2015
    Concord, California
    Yes, the speakers were out of phase when the video was shot. I hadn't realized it at the time, but folks on this forum and Youtube pointed it out. I liked the effect, so since then, I installed a toggle switch that lets me choose whether the speakers are out or in phase with each other. Now I can play a 12, a 10, both, in-phase, OOP, open cabinet, or closed cabinet, and all the combinations of the foregoing. In real life, he OOP setting makes the 5e3 sound like a lot like a Fender Champ.
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