[time-nuts] COMPLETELY off topic - but I know you'll read it anyway.
bruce.griffiths at xtra.co.nz
Sat Oct 11 12:24:18 UTC 2008
Jim Palfreyman wrote:
> OK I have an interesting but simple problem that has nothing to do with
> time. But I'm sure someone on this list will know. And besides I can't be
> stuffed finding another list with such a good S/N ratio.
> In my spare time I play in a band.
> I have a 1000W amplifier that can be either two 500W stereo channels or a
> single 1000W mono running in "bridged" mode. (Basically one channel
> amplifies the upper part of the sine curve and the other the lower.)
Thats not an accurate description of how bridged amplifiers work.
The load is connected between the 2 outputs which are 180 degrees out of
This doubles the available voltage swing across the load.
For a given load, this quadruples the power (provided neither of the
amplifiers goes into current limit).
> The amp can drive speakers down to 4 ohms.
4 ohms in bridged mode?
Or 4 ohms in single ended mode?
> I have two 8 ohm speakers.
> The source is mono.
> Do I run each 8 ohm speaker on its own 500W channel?
> Do I run in bridged mode and put the two speakers in parallel onto the 1000W
> Any takers?
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