NHT SA-2 vs. plate amp - diyAudio
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Old 16th August 2005, 07:57 PM   #1
pjanda1 is offline pjanda1  United States
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Default NHT SA-2 vs. plate amp

I've got the opportunity to buy an NHT SA-2 and I'd like opinions from anyone that has used or heard one. It will eventually be mated to sub accompanying my not yet completed full rangers. I don't think power will be an issue. I like the 35-150 hz low pass range, the 100 hz speaker level high pass, the adjustable line level high pass, and it's stand alone nature. On the downside it's $120 price puts it in the midst of some passable looking plate amps, and it is used. Any thoughts?


thanks,

Paul


specs at:

http://www.nhthifi.com/products/sa-2.html
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Old 18th August 2005, 09:13 PM   #2
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The NHT SA-1. SA-2, SA-3 were plate amps repackaged. Build quality was on a par with the better plate amps.... ie nothing special quality wise. Circuit was, as a rule reliable, albeit perhaps complicated.

They would usually run into 2 ohms or less with no problem thanks to an opto-coupled current limit device. Ran pretty efficient, once ran an SA-3 into 1 ohm non inductive load until it clipped with 60 Hz input signal.

The SA-3 under these conditions drew about 10 watts more from the wall than it actually produced.

Cyclotronguy
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Old 19th August 2005, 04:19 PM   #3
pjanda1 is offline pjanda1  United States
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Thanks! I think I'm going to go with a new plate amp. I haven't seen much written about these, but the ebay prices made me pause and wonder.

Paul
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