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In Reply to: RE: Stereo, bridged or parallel? FIRST posted by boneaus on October 16, 2010 at 01:39:22:
There are 2 meaning of "parallel" on amplifers. The old Crown MA/MT (and others) had ove version, and everybody else has a different meaning.
On everybody else the parallel switch simply puts the inputs in parallel (just like using a Y cable on the input) and a loudspeaker hooks to each channel as normal and the sound of the channel is unchanged.
On the particular Crowns, you take a large wire and physically tie the 2 HOT/RED terminals together and flip the parallel switch. This is done while in the OFF position.
WHat this does is use the front end of channel 1 to drive the output sections of both amps (which are tied together) and enables the amp to drive a 1 ohm load.
The "secrret" that is told, is that response above 5Khz goes downhill quickly when doing this.
When you go Bridge, the sound is basically unchanged, but the damping factor of the amp is half of a single channel-as the channels are run in series with each other and the output impedance is ADDED together. So if the output impedance is normally 0.01 ohms, in bridged it will be 0.2 ohms.
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Follow Ups
- RE: Stereo, bridged or parallel? FIRST - Ivan Beaver 19:30:30 10/27/10 (0)
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