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Low wattage tube head as a preamp?

Discussion in 'Amps and Cabs [BG]' started by jock, Oct 31, 2003.


  1. jock

    jock

    Jun 7, 2000
    Stockholm, Sweden
    I was just thinking... Would a, say, 30W alltube head into something as a Marshall powerbreak be a good preamp into a common bass rig with poweramp?
    Is it a stupid idea?:meh:
     
  2. JMX

    JMX Vorsprung durch Technik

    Sep 4, 2000
    Cologne, Germany
    It should work, but if it's worth the effort, I don't know.
     
  3. jdombrow

    jdombrow Supporting Member

    Jan 16, 2002
    Colorado Springs, CO
    You'd have to figure out the output voltage and output impedance created by the amp/powerbrake combination to see if it would be compatible with the input of the power amp. The tube head by itself, regardless of wattage, will be too much signal going into a power amp. Whether or not the powerbrake will rectify this properly, I can't say. It certainly would not be worth blowing a power amp to find out.

    Why not just look for an inexpensive tube preamp?
     
  4. BillyB_from_LZ

    BillyB_from_LZ Supporting Member

    Sep 7, 2000
    Chicago
    For the price of a 30 Watt tube head and a Marshall Power Brake, you could probably buy an SWR IOD (at least a used one) and have all that you're looking for in a single rack space....
     
  5. Tim Cole

    Tim Cole

    Jun 12, 2002
    Findlay, Ohio
    Unless your amp has a line level out, I'd say no.

    Pick up a used sansamp.