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questions about head and cabinet

Discussion in 'Live Sound [BG]' started by stampede_bass, Apr 27, 2010.


  1. stampede_bass

    stampede_bass

    Apr 27, 2010
    hello, i purchased a basson 8X10 cabinet. they recomend to use a head that has 1500 watts or more to power the cabinet. Here is my question, i have a hartke LH1000 Head that pushes 1100 watts at 4ohms. this head seems to be very powerful for its rating, i blew twice a behringer 8X10 cabinet that was SUPPOSED to be rated at 2000 watts, and i only had the volume at 5 haha. my question is ive played ampeg heads before SVT4, which are rated to 1200 watts, yet for some reason my hartke seems to be wayyy more powerful than any ampeg i played before. my concern is would this be bad for the cabinet to use this head since it might be underpowering and possibly i can burn the coils in the speakers? ive read people use this cabinet with the svt4 pro no problem at all. do you guys think im ok using this head and not at risk? like i said this head feels very powerful, i just want to be on the safe side and not burn the coils in the basson..

    thanks!
     
  2. stampede_bass

    stampede_bass

    Apr 27, 2010
    anybody know anything about this and underpowering?? how high is the risk of something bad happening??!!
     
  3. SpamBot

    SpamBot

    Dec 25, 2008
    St. Paul, MN
    Read the FAQ. You cannot blow a cab by underpowering it.
     
  4. I've heard that underpowering is a myth from many people. On the other hand, a Basson rep told me directly to not use anything under 1500w with their 8x10 because it could "burn the coils up".
    I am curious if that is even possible.
     
  5. SpamBot

    SpamBot

    Dec 25, 2008
    St. Paul, MN
    Nope. You can only blow a speaker through overexcursion or thermal failure, both if which are caused by sending too much power to a speaker. FAQ.
     
  6. I am really curious why Basson says this then. Wouldnt they want everyone to buy their cabs? They don't make bass heads so it's not like they're pushing people to buy more of their product.

    Not saying you're wrong Spambot; I've always thought that you cannot underpower a speaker. Just wondering what Basson has to say about this.
     
  7. SpamBot

    SpamBot

    Dec 25, 2008
    St. Paul, MN
    Perhaps we have a Basson rep on TB to enlighten us. I know some companies have reps that search TB for brand keywords and respond to these sorts of question.
     
  8. From what I read if youre clipping your solid state amp it can warm up the coils to melting point, but you'll be able to hear it clipping first. Moral of the story, if it sounds painful, it probably is.
     
  9. SpamBot

    SpamBot

    Dec 25, 2008
    St. Paul, MN
    The reason this happens is that any amps, SS or tube, put out more than their rated power under extreme clipping. The coils heat up to the melting point because they are supplied with too much power. This can happen with an amp rated above, at or below the cabinet's wattage rating.
     
  10. You read my mind :) I just emailed Basson with a link to this thread.
     
  11. walterw

    walterw Supportive Fender Gold Supporting Member Commercial User

    Feb 20, 2009
    alpha-music.com
    sales reps don't design or build the things, they're just salesmen, who don't always know what they're talking about.

    if you drive a lower-powered head into clipping, and if that clipping causes the head to put out more power than the cab is rated for, it can kill the cab. (clipped amps put out way more power than their clean rating). the clipping itself doesn't matter.

    you burn up a cab by sending too much power into it, or too low a frequency into it. that's all.

    rock your hartke head on your basson cab, and don't give it a second thought.
     
  12. JimmyM

    JimmyM Supporting Member

    Apr 11, 2005
    Apopka, FL
    Endorsing: Ampeg Amps, EMG Pickups
    here's the real deal with basson cabs...got this from bill fitzmaurice...

    they use giant magnets that truly do require a huge amount of power to work. if they don't get that power, the magnets won't power the voice coil properly and the voice coil will burn up. so you really should have the minimun power basson says they need. this is the one rare instance where blowing your cabs by underpowering is not a myth. however, it's for a whole different reason than the usual underpowering/clipping myth.

    i would think 1100w would be close enough, but after knowing what i know now, and basson recommending 1500, i don't think i'd chance it.
     
  13. SpamBot

    SpamBot

    Dec 25, 2008
    St. Paul, MN
    I have every confidence BFM knows what he's talking about, but that makes no sense whatsoever to me.
     
  14. JimmyM

    JimmyM Supporting Member

    Apr 11, 2005
    Apopka, FL
    Endorsing: Ampeg Amps, EMG Pickups
    makes sense to me. wouldn't a bigger magnet require more power to activate it?
     
  15. stampede_bass

    stampede_bass

    Apr 27, 2010
    thanks for all the input guys. the head is underpowering i can tell a little. for some reason it does not feel as powerfull as it was before; for example in practice studio there was no way i could put the volume up to 5 with my old cab. now with the basson i can put it up to 5 and doesnt feel as powerful.

    i think i am just going to upgrade and buy a power amp, and a pre amp seperately. any opinions in these right here:

    http://www.zzounds.com/item--BEHEP4000

    or

    http://www.zzounds.com/item--CWNXLS802

    the behringer price is soo good compared to the crown, anybody got any experience with the behringer? is 4000 watts at 4ohms bridge!!

    as for the pre am i was thinking of getting this

    http://www.zzounds.com/item--TCHBSDR

    thanks!
     
  16. ...Carvin B2000?...
     
  17. stampede_bass

    stampede_bass

    Apr 27, 2010
    the carvin is 1300 watts at 4ohms..

    this is what the sheet of paper that came with the basson says

    "Your power amp Requirements
    Minimum Required Amp Power rating must be:
    1500+ watts at 4 ohms per channel
    DO NOT underpower this cabinet or damage to the speaker coils may occur."

    im just gonna follow what they say i think haha so anybody got experience with any of those power amps and pre amps i listed?

    btw this cabinet is a killer cabinet, this makes Ampeg look like a kids toy

    thanks!
     
  18. You're right, sorry, my mistake. Good luck getting a good match for your cab!
     
  19. JimmyM

    JimmyM Supporting Member

    Apr 11, 2005
    Apopka, FL
    Endorsing: Ampeg Amps, EMG Pickups
    i have heard that power amps is one thing that behringer has actually done right. but their rating systems for them are based on so much marketing hoo-ha that i would much rather go with a name that tries to give more honest real world specs like crown, qsc, carvin, peavey, etc., because at least i would know that when they say it's a 1500w amp, it's a 1500w real world usage amp and not just a 750w amp disguised as a 1500w amp.
     
  20. stampede_bass

    stampede_bass

    Apr 27, 2010
    yeah thats the same thing i learned about behringer haha... i blew out their 810 cabinet twice like i said, that was supposed to be rated at 2000 watts, yea right haha. blew it with my 1100 hartke head
     

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