[R-390] Class D Amplifiers

[Chris Kepus]

How could you go wrong at that price, Barry?  If it didn't work out with the
R-390A, it would make a nice little aux amp for the workbench and other
projects.  
There's gotta be an early adopter! :-)
73,
Chris
W7JPG
PS: Bought a lot of stuff from Parts Express and have been very happy with
them.  


-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
On Behalf Of Barry
Sent: Friday, February 07, 2014 8:45 AM
To: R-390 List
Subject: [R-390] Class D Amplifiers

A while back, there was some discussion on this list about outboard audio
amplifiers.  I don't recall whether these came up, but has anyone worked
with Class D amplifiers?  If so, are they troublesome - specifically with
respect to noise?

>From what little I've read about them, there are some pretty rigorous
constraints with grounding, filtering, etc., to keep them from sourcing too
much noise back into the system where they're used.

Just looking at the one below and thinking that, at the price, it would make
a decent amp for the R390.

http://www.parts-express.com/pam8610-2x10w-class-d-audio-amplifier-board--32
0-604

Bad idea?

Thanks,
Barry - N4BUQ
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