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Looking for amp to push my Cab

Discussion in 'Amps and Cabs [BG]' started by sourjaw57, Apr 15, 2009.


  1. sourjaw57

    sourjaw57

    Apr 15, 2009
    About a decade ago I picked up an SVT-410HE, I had a couple heads that were 100-300 watts, but I never achieved enough oomph out of them. I'm thinking about picking up a power amp, but I'm not sure how much power I really need. This Cab is 8 ohms, and I've also pushed around the idea of picking up a 15" 8 ohm Cab. Does running a stereo amp keep those at 8 ohms or will they be 4? I've had my eye on the Carvin amps, any suggestions???

    Thanks in advance.
     
  2. BassmanPaul

    BassmanPaul Gold Supporting Member

    Aug 25, 2007
    Toronto Ontario Canada
    My favourite: Carvin DCM1000 - a bit over $300.

    Paul
     
  3. Greyvagabond

    Greyvagabond

    Aug 17, 2007
    Los Angeles
    Carvin stuff is solid. A stereo amp with basically be two seperate power amps driving two 8 ohm cabs.
     
  4. sourjaw57

    sourjaw57

    Apr 15, 2009
    What about if the amp is bridged, will it still be driving two 8 ohm cas?
     
  5. Greyvagabond

    Greyvagabond

    Aug 17, 2007
    Los Angeles
    Ah, if it is bridged, it acts like one big amp, so the total load on it will be 4 ohms. I'm pretty sure most power amps can do that, but I believe it will run cooler (with more or less the same volume) if its run as two seperate power amps. Somebody correct me if I'm wrong.
     
  6. sourjaw57

    sourjaw57

    Apr 15, 2009
    Would the DCM3800L be a good choice?
    - Power: 700W @ 8 ohms, 1150W @ 4 ohms, 1800W @ 2 ohms
    - Bridged Power: 2300W @ 8 ohms bridged, 3800W @ 4 ohms bridged

    Or would I be better going with 2 DCM2000's?
    - Per channel: 8 ohms: 425w, 4 ohms: 700w, 2 ohms 1000w
    - 8 ohm bridge: 1400w, 4 ohm bridge: 2000w continuous


    Cab specs...500W RMS 1000W Peak 8 ohm

    Other suggested solutions are welcome...just trying to get the most from my Cab
     
  7. sourjaw57

    sourjaw57

    Apr 15, 2009
    I think I overshot that somewhat, If I didn't go with a 2 cab solution the DCM1000 bridged looks like a good solution on paper.
    - Per channel: 8 ohms: 225w, 4 ohms: 350w, 2 ohms: 500w
    - 8 ohms bridged: 700W

    Would a single DCM2000 bridged with my single Cab be too much? Could I run it low, or would I be in trouble? This would give me some room for cab expansion as well, I think.
    - Power: 325W @ 8 ohms, 600W @ 4 ohms, 1000W @ 2 ohms
    - Bridged Power: 1200W @ 8 ohms bridged, 2000W @ 4 ohms bridged

    Sorry, kinda new to this stuff, need help!
     
  8. BassmanPaul

    BassmanPaul Gold Supporting Member

    Aug 25, 2007
    Toronto Ontario Canada
    Remember that a power amp can only give at maximum what is available at the AC socket. Also Just because a cabinet has a rating of 500W doesn't mean that it actually CAN handle that amount. A lot of cabinet specs are wishful thinking at best!

    The DCM1000 will supply 1000W into a 4Ω load when bridged.

    Paul
     
  9. Hartke LH1000 :D
     
  10. sourjaw57

    sourjaw57

    Apr 15, 2009
    Is there a general norm for household AC sockets? Any easy way to find out what is available in my home?
     
  11. P. Aaron

    P. Aaron Supporting Member

    After thinkin' it over, talking to many folks in the field, and PM'ing around TB with a few people, that's the direction I'm going. Nice, simple, power, and tube characteristics.
     
  12. MIJ-VI

    MIJ-VI Banned Supporting Member

    Jan 12, 2009
    I believe that in North America most household AC outlets are 15 Amp @ ~110 - 120VAC.

    Volts X Amps = Watts. 120 Volts X 15 Amps = 1800 Watts
    Derate by 80%(1800 X .8 = 1440 watts)

    --------

    BassmanPaul has made a good point re amplifiers which can outstrip an available AC supply.

    Club players whose amps are occasionally at the mercy of sometimes 'creatively' wired AC outlets found on small stages (I've encountered a few), would do well to avoid unnecessary power-hungry gear.

    I suppose this would be yet another reason to consider SMPS/Class D-based amplification.
     

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