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RE: Overpowering Subs

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In Reply to: RE: Overpowering Subs posted by oughsosimple on November 16, 2010 at 19:48:47

Do you mean you actually feed them 3100w or that you connected them to amps capable of delivering 3100w while you use usually a lot less?

In the first case I'd be surprised that they lasted this long.
In the second scenario: Welcome to the world of decent headroom!
Personally I like 12-20dB of headroom to keep things clean. That is to say that if during listening my speakers receive 25w rms I want an amp with a rated output of at least 250w rms.

For drivers the rule of thumb is that the amp connected should have twice the power output of what the speakers are rated at. I've got some Tannoys rated at 125w and they only sounded as good as they can when I used a 250w amp to drive them. At that point bigger amps did not make them sound any better anymore and I tried an amp that was capable of delivering 4400w (bridged) at 0.03%THD.

Follow Ups:

RE: Overpowering Subs - oughsosimple 14:26:26 11/20/10 (1)
yeah... i dont think i am technically sending them 3100 watts. im just using amps that are capable of...

i have only lost one driver out of 8. but the boxes are used and i feel like it was just time for that one to go...
- RE: Overpowering Subs - b.l.zeebub 16:28:17 11/20/10 (0)
  If you know which drivers are in your subs you can find out their tech data which hopefully should yield two maximum excursion numbers: the max excursion before damage (usually peak-to-peak) and the maximum linear excursion mostly given as a +- measurement.
  
  The trick is to stay within the much smaller linear excursion limit and add subs if it's not loud enough. Otherwise distortion is sky rocketing.

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