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Old 15th March 2002, 03:23 PM   #1
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Default Newbie Question,

I recently finished an amp based on the LM3886 chip.
They are rated at about 70W/chip, but I need more effect.

I'm thinking about using both channels to drive one speaker,
by simply connect both speaker terminal pairs to one speaker,
and feed both channels with the same signal.
This way it will become some kind of a monoblock.

Is this possible? Or will I damage something by altering the impedans?

Any answers are very welcome,

Best Regards,
Christian V
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Old 15th March 2002, 04:34 PM   #2
yeti is offline yeti  Germany
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Default two amps in parallel

Usually this doesn't work.Why don't you go for a bridged amplifier?
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Old 15th March 2002, 06:52 PM   #3
tiroth is offline tiroth  United States
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Location: Pittsburgh, PA, USA
This will increase the current handling of your amp, but will generally not increase the output power because the voltage swing will not increase. Trying to do this can be problematic for other reasons.

You may wish to check out www.sound.au.com and otherwise do some more research.
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Old 15th March 2002, 06:55 PM   #4
paulb is offline paulb  Canada
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Try a search. Here's one thread, there may be others:
LM3886 Parallel Use
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