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Bass Amp Question

brezno · 2007-10-15 09:50:25

Hey, I know this is probably a stupid question but I've always used combos before so it never came up. Just bought a new SWR 400w head and am going looking for a cab now... do I need a 400w? ie if I bought a 200w cab would it blow the cr*p out of the cones???? Any help or insight would be gratefully appreciated!! Cheers,

15-10-2007 9:50am

#1

brezno

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Hey,

I know this is probably a stupid question but I've always used combos before so it never came up. Just bought a new SWR 400w head and am going looking for a cab now... do I need a 400w? ie if I bought a 200w cab would it blow the cr*p out of the cones????

Any help or insight would be gratefully appreciated!!

Cheers,

0

Comments

#2 15-10-2007 3:41pm

brandobass

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Of course it would blow up. You'll have 400watts of power going into 200watts of speakers. Get an 4 ohm 400 watt cab with 4 x 10 inch speakers.

0
#3 15-10-2007 4:03pm

Savman

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brandobass wrote: »

Of course it would blow up. You'll have 400watts of power going into 200watts of speakers. Get an 4 ohm 400 watt cab with 4 x 10 inch speakers.

Totally inaccurate statements there. According to its spec, that head gives out 400w @ 4ohm, or 250w @ 8ohm

The general rule of thumb is to give a speaker cab 1.5 times its rated RMS power. That's the only way you get sufficient headroom, of course a lot of folks can underpower the cab and be none the wiser but let's not scaremonger about "blowing up" speakers.

brezno wrote:

Hey,

I know this is probably a stupid question but I've always used combos before so it never came up. Just bought a new SWR 400w head and am going looking for a cab now... do I need a 400w? ie if I bought a 200w cab would it blow the cr*p out of the cones????

Any help or insight would be gratefully appreciated!!

Cheers,

Its horses for courses, but I think I'd lean toward either of the following:
150-200w RMS if its an 8ohm cab (the amp will be giving it 250w)
200-400w RMS if its a 4ohm cab (the amp will be giving it 400w)

That's going by the quoted spec I found here http://www.swrsound.com/products/search.php?partno=4450200010

0
#4 15-10-2007 4:58pm

brandobass

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4 ohms at 400 watts its exacltly what i said you stupid idiot.

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#5 15-10-2007 5:06pm

Savman

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brandobass wrote: »

4 ohms at 400 watts its exacltly what i said you stupid idiot.

How mature.

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#6 15-10-2007 5:24pm

unclebill98

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Is this tread not somewhere else too....

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#7 15-10-2007 5:53pm

Savman

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Indeed it is, I've just noticed
http://www.boards.ie/vbulletin/showthread.php?t=2055165644

Maybe this one can be closed anyways, seems to have attracted some troll like behaviour :rolleyes:

0
#8 15-10-2007 5:58pm

miju

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thread locked and brandobass banned

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This discussion has been closed.