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lary99
lary99's picture
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Last seen: 3 years 7 months ago
Joined: Apr 6 2011 - 8:32pm
Battery-powered amplifier

I listen to music via a pair of "monitor-style" speakers, 50 Hz - 16,000 Hz. Sensitivity = 86 db, which is less sensitive than full-size speakers. I listen at a fairly quiet level.

I want to drive these speakers with a battery-powered amplifier of "Class D" quality. I vacation in a cabin in the woods, so the amplifier will be powered by a 12V, 22 AH battery that will also be supplying a 12W Philips LED-bulb table lamp (light equivalent to 65W incandescent).

I would prefer that the 12V battery-powered amplifier operate in "class C" or "class D" switching mode, so that the idle current drawn from the 12 battery is 0.5 amp or less.

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All I've ever seen reviewed in Stereophile (years ago) is battery-powered headphone amplifier -- used on an airplane flight with Grado headphones.

Any ideas would be greatly appreciated!

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