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Help understanding a manual for mark III combo

Discussion in 'Amps and Cabs [BG]' started by silentbodit, Dec 1, 2005.


  1. Hello
    I recently purchased a peavey mark III 1x15BW combo :bassist: and I am a little confused on the extension speakers. RAS1983 was kind enough to give me a link but we were still unsure. http://www.peavey.com/support\sea...ist\combo.cfm
    If I understand correctly the amp puts out 130w @ 4 ohms.
    The BW 15 is also a 4 ohm speaker. Soooo wouldnt I run the chance of damaging the amp if I were to run an extension speaker? :eek: And if so why have the ext jacks? :confused:
    Thanks for any help and my apologies if this is a stoopid question but it didnt make sense to me. :help:
     
  2. fdeck

    fdeck Supporting Member Commercial User

    Mar 20, 2004
    Madison WI
    HPF Technology LLC
    Are you sure the extension speaker jack doesn't cut off the internal speaker when you plug in an extension? Just plug in a speaker cable and see if it cuts the sound.

    You understand correctly that the Mark III is 130 Watts into 4 Ohms. Also, having measured its output when I owned one long ago, it's pretty close to 65 Watts into 8 Ohms. I had the Centurion head, which had the Mark III power amp, and it was definitely not rated for operation at 2 Ohms.

    And, I believe it was typical of Peavey amps of that vintage that the BW speakers were 4 Ohms.

    There are no stupid questions. The only stupid thing is not asking questions, and then smoking your gear.
     
  3. ras1983

    ras1983

    Dec 28, 2004
    Sydney, Australia
    I couldn't imagine anything worse for a person's health. imagine having to lug around the PV AND another cab or two.
     
  4. If I recall you have to plug both jacks to cut the sound from the speaker but ill have to double check when a puppy isnt sleeping infront of it. Also I must agree lugging that and an additional cab would not be what I consider fun. Thanx to all
    :bassist:
     
  5. I had one of these and I am in the process of buying another, I ran main with a peavey 1810, and depeding on what version it is, because peavey put different power amps in the "same" combos for a while. Mine was the 260C and when I put the combo on top of the 1810 it was great having a 15 right at ear level. bass player +1 band 0/ :bassist: and no the speaker jack doesnt cut off the internal speaker. and I ran mine at two ohms for quite a while with not problems, although I did install the speaker cut off switch, because that amp at 2 ohms gets a little noisy. but when Mine was t 2 ohms it never got overly hot, but for my situtation with that many speakers and running only small shows and band practice it was fine. and I had that combo put up against two peavey 5150's and was told to turn down. IMHO its a very nice combo. sorry for the essay