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amps, ohms?

PkomorPkomor Posts: 380
edited October 2007 in The Crudcatcher
i couldnt see a general section, so i thought id post here...

I have a hartke 2500 250 watt head with a 15 inch vx 115 cab, I am close to buying a 4x10 vx 10 off ebay, but I confused as apparently the cab is 8 ohms, I dont know what effect this will have on my amp, can you help?! :oops:

Posts

  • ddoogieddoogie Posts: 4,159
    You will have to run your amp at 180watt instead of 250.
    S-works Stumpjumper FSR

    I'll see you at the end.

    You'll see me on the floor.
  • 8 ohms is the impedance of the speaker in the cab. According to this website your head will deliver 250 watts into 4 ohms or 180 watts into 8 ohms.

    So an 8 ohm speaker won't be as loud as a 4 ohm, though presumably it'll give a different tone quality which you may prefer. 8)
    Even if the voices aren't real, they have some very good ideas.
  • PkomorPkomor Posts: 380
    But if I run both cabs, (which are both 8 ohms) it should deliver 250 watts, yeah?
    because i thought it was the ohms of one cab divided by the number of cabs? (if both cabs have the same ohm rating)
  • ShadowduckShadowduck Posts: 845
    edited October 2007
    If you connect two 8 ohm speakers to the same amp* output (in parallel), you should get 250W split between them.

    Why does "This Is Spinal Tap" come to mind..? :mrgreen:

    *Edit: That's "amp-lifier" not "amp-erage".
    Even if the voices aren't real, they have some very good ideas.
  • Glad to be of service.
    Even if the voices aren't real, they have some very good ideas.
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