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Mesa 2x15 PowerHouse - 4 or 8 ohms - how do they do that?

Discussion in 'Amps and Cabs [BG]' started by warnergt, Jan 7, 2009.

  1. Jan 7, 2009 #1
    warnergt

    warnergt

    Oct 25, 2007
    Vortex of sin and degradation
    I'm looking at a Mesa 2x15 PowerHouse.
    It says "8 or 4 ohms." How are they able to achieve 8 or 4 ohms?
    ...or do I have to specify which I want when I buy it?
     
  2. Jan 7, 2009 #2
    KJung

    KJung

    Apr 9, 2005
    Wisconsin and Upper Michigan
    Different drivers. I assume the 4ohm has two 8ohm drivers and the 8ohm has two 16ohm drivers in parallel.

    You will have to decide which you want.
     
  3. Jan 7, 2009 #3
    spectorbass83

    spectorbass83

    Jun 6, 2005
    canada
    Exactly.
    Its not like its switchable...they come in either of the two.
     
  4. Jan 8, 2009 #4
    Bassorama57

    Bassorama57

    Feb 1, 2008
    Fredericksburg, VA
    Yep..someone started the rumor that Mesa cabs have "switchable" impedances. Definitely not true, though a dealer told me that over the phone once..pervasive rumor. The player control panel lets you vary the crossover to the tweeter (3, 4, 5K) and there's a tweeter "attenuator" (eg, volume), but you must choose when ordering..4 or 8.