Is a parallel amp the same as a balanced amp?
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Posted by Nick on May 19, 2008, 8:41 pm
Please log in for more thread options The differences between a parallel amplifier and a balanced amplifier is rather confusing. Are they the same, or are they different? Both these circuits, and their advantages, appear to be very close to each other, if not the same... Just curious, -Nick | |||||||||||||||||||
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Posted by Eeyore on May 19, 2008, 8:56 pm
Please log in for more thread options Nick wrote: Is this what you mean ? http://en.wikipedia.org/wiki/Bridged_and_paralleled_amplifiers Graham | |||||||||||||||||||
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Posted by Jeff Liebermann on May 19, 2008, 10:12 pm
Please log in for more thread options On Tue, 20 May 2008 01:56:26 +0100, Eeyore
>Nick wrote:
> >> Hello all,
>> >> The differences between a parallel amplifier and a balanced amplifier >> is rather confusing. Are they the same, or are they different? Both >> these circuits, and their advantages, appear to be very close to each >> other, if not the same... >Is this what you mean ?
>http://en.wikipedia.org/wiki/Bridged_and_paralleled_amplifiers >Graham Or this? <http://en.wikipedia.org/wiki/Distributed_Amplifier>
-- # Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060 # 831-336-2558 jeffl@comix.santa-cruz.ca.us # http://802.11junk.com jeffl@cruzio.com # http://www.LearnByDestroying.com AE6KS | |||||||||||||||||||
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Posted by John Popelish on May 19, 2008, 9:54 pm
Please log in for more thread options Nick wrote:
> Hello all,
> > The differences between a parallel amplifier and a balanced amplifier > is rather confusing. Are they the same, or are they different? Both > these circuits, and their advantages, appear to be very close to each > other, if not the same... I'm not sure where you found a parallel amp, but it can hardly be the same as a balanced amplifier because the two outputs of a balanced (bridged amplifier) are in series, with the load between them. This increases the total voltage applied to the load. I can only assume that paralleled amplifiers are just connected in parallel (to raise the total output current capability) with the load connected between that node and the signal common (ground). So if you need more voltage for the load, use a balanced configuration. If you need more current for the load, use the parallel configuration. -- Regards, John Popelish | |||||||||||||||||||
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Posted by BobG on May 19, 2008, 11:21 pm
Please log in for more thread options 'Balanced input' means it can take a differential signal on a 'cannon
mic connector'. 'Parallel' is just a stereo-mono switch that lets one channel drive both amp channels in phase and in parallel. 'Bridge' sticks an inverter in front of one channel so they are out of phase... one red wire is going positive and the other one is going negative.... hook the speakers up to the two red terminals for more ooomph. I've never heard the term 'balanced amp' but it sort of sounds like the bridged definition I just tried to explain. Hope it helped. | |||||||||||||||||||
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>
> The differences between a parallel amplifier and a balanced amplifier
> is rather confusing. Are they the same, or are they different? Both
> these circuits, and their advantages, appear to be very close to each
> other, if not the same...