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How to build a cabinet that can work for both 8 ohm and 16 ohm amps?

Discussion in 'Shock Brother's DIY Amps' started by etype, Apr 5, 2019.

  1. etype

    etype Tele-Afflicted

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    Say I have the following:
    5w head (8 ohm) -- want to use it with an 8" speaker
    15w head (16 ohm) -- want to use it with 2x8" speakers

    So use two 8 ohm speakers in series and install a switch that diverts the wire coming off the (-) of the speaker in use back to the (-) of the jack (instead of to the (+) of the second speaker?

    Does that make sense? I'd have my tech do the work, but is it more complicated than this?
     
    thegeezer likes this.
  2. D'tar

    D'tar Friend of Leo's

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    upload_2019-4-5_10-29-35.png
     
    etype likes this.
  3. thegeezer

    thegeezer Tele-Afflicted

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    I have a Marshall 1936 lead cab. It’s 8 ohms at the 2x12 jack and 16 ohms at the 1x12 jack (with the original 16 ohm Celestions). I have an 18 watt head with switchable output. Works great for a variety of applications. My little 5 watt Swart rocks it with both 12s running or the 18 watter either way depending on what’s needed. Do it!
     
    Last edited: Apr 5, 2019
    etype likes this.
  4. Strato50

    Strato50 Tele-Afflicted

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    I have a two 12 cab line that. Follow that wiring diagram above.
     
    etype likes this.
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