Cab help

Discussion in 'Amps and Cabs [BG]' started by Robert Rowland, Apr 30, 2020.

  1. Robert Rowland

    Robert Rowland

    Apr 30, 2020
    Can I run a ashdown rootmaster rm 500 evo head through a ampeg 4x10hlf b series? But also run another cab say maybe a 15" sub?
    The amp is 500w 4 ohm and ampeg cab is 200w or 400w 4 ohm not sure as read different specs.
  2. mmbongo

    mmbongo I have too many basses. Supporting Member

    Sounds like 'no' because your Ampeg cab is 4 ohms and your amp can't go below 4 ohms.

    I wouldn't do that anyway, as the 15 would be a poor match with a 410. The 15 would just destroy itself trying to keep up with the 410. If you want another cab, get another matching 410 but as stated it sounds like you'l need a different amp for that IF the cab you have is 4 ohms.
    wave rider and Robert Rowland like this.
  3. Joedog


    Jan 28, 2010
    Pensacola FL
    Your amp can only handle one 4 ohm cab, or two 8 ohm cabs (which total 4 ohms). Two 4 ohm cabs run at 2 ohms, which would very likely result in burning up your amp (magic smoke, nasty smell, no sound).
  4. Robert Rowland

    Robert Rowland

    Apr 30, 2020
    So I could run 2 4x10 cabs at 8 ohm with a 4-ohm amp?
    DiscoRiceJ likes this.
  5. deff

    deff Supporting Member

    Oct 15, 2018
    Gloucester, MA
    Yup Two cabs at 8 ohm equals 4. Your amp will safely operate at 4.
    Robert Rowland likes this.