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68.6.90.104
I used a Proceed HPA-3 driving a pair of KEF Reference 107/2s and a 102 for LCR, but the 107/2s image so well I removed the 102. Years ago, Madrigal told me Proceed amps are stable even without loads, still I wonder if I should add a 4Ω resister across the center output or reinstall the 102 -- the center is set to off in Oppo 105 menu for surround and the Parasound JC-2 is stereo only. Analog stereo from a JC-3 phono stage, the Oppo 105, and a Sony XA5400ES go through the JC-2.
So the question is: Should I (1) reinstall the inactive 102 center speaker, (2) install a 4Ω resister across the output, or (3) not bother?
db
Follow Ups:
The 4 Ohm resistor would need to be pretty big to cook off all that heat.
It's generally not the best practice to run most amps unloaded, but if the manufacturer says it's OK, then go for it.
The manual clearly states that you should never connect anything but a speaker to the outputs of the amp. See p. 16.
It occurred to me that I have unused high-quality speaker cable and that the KEF 102 is small enough not to be intrusive, so reconnected it to the center channel. If I decide to try it again I can reset the center channel to on in the Oppo menu.
And my likely inerrant sense of guilt is expatiated.
db
The channel is basically idling happily. If you stick a resistor in there the resistor will get hot, maybe burn up. And the amp will be wasting electricity trying to pass currentthrough the resistor.
Waste of time.
Just leave the channel unused but turned on.
IF you 'ask' for output with a resistor connected you'd be right.
with NO input to that channel, a resistor couldn't hurt. I'd use a 10 ohm / 5 watt which should remain at room temp. unless you put an input to that channel and 'turn it up'.
Too much is never enough
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