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#72974 - 05/31/07 04:43 PM external power amps
kscharf Offline
Gunslinger

Registered: 04/28/07
Posts: 115
Loc: South Florida
Many receivers, including the 1070 have pre-outs to use an external power amp. I was looking through the online user manual and noticed that there doesn't appear to be a config option to turn off the internal power amps when using the pre-out. I guess running the internal amp without a load won't cause any harm, or does the circuit detect the no-load condition and shut down the amp?

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#72975 - 05/31/07 04:45 PM Re: external power amps
gonk Offline
Desperado

Registered: 03/21/01
Posts: 14054
Loc: Memphis, TN USA
If it's like the 1050 was (and like many other receivers), the internal amps run without a load. Running a solid state amp with no load is not going to harm it.
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#72976 - 05/31/07 05:48 PM Re: external power amps
kscharf Offline
Gunslinger

Registered: 04/28/07
Posts: 115
Loc: South Florida
That's what I thought. It also probably means you can bi-amp your speakers by using the internal amp to drive tweeters (through a speaker level high pass filter) and the woofers through external amps driven from the pre-outs through an active low pass filter.
You'd have to set the level on the external amp so the speakers were balanced though.

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#72977 - 05/31/07 06:11 PM Re: external power amps
gonk Offline
Desperado

Registered: 03/21/01
Posts: 14054
Loc: Memphis, TN USA
That is correct.
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Reviews: Index | 990 | speakers | BDP-93

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