The problem with inexpensive "12 V" amps is that they only have 12 Volts
to work with, so that limits how much power they can put out. I suppose
for our kind of use that's not much of a problem, as with good speakers,
even 5~6W can be deafening!
Parts Express has quite a few automobile power amps at a reasonable
price, so you might want to try there.
73, Jim
On 01/29/2012 10:48 PM, J.Gordon Beattie, Jr., W2TTT wrote:
Jim et al,
Does anyone have a suggestion for a 12V audio amplifier that we can use in
portable/mobile environments where there will be RF fields? Shielding and
bypassing are key in portable/mobile environments because of the proximity
issues they bring. I would also consider using a decent audio amplifier and
separate speakers along with my Sirius Radio head instead of plugging it
into my truck stereo system if one were available. Previously, I bought a
semi-kit from Carl's Kits, but the amplifier used balanced outputs which
required both leads to float above ground. I never was able to properly
bypass the outputs even though the amplifier was in a shielded box.
Any thoughts?
Thanks& 73,
Gordon Beattie, W2TTT
201.314.6964
I'm using a "PylePro" PCA2 amp with some RadioShack/RCA mini bookshelf
speakers whenever I want room filling audio.
MOST of the time I use my Radiosport headset, but once in a while it's
nice to have the speakers on, like when I have a visitor over and want
to show off how well the Flex 5000 handles QRM!
73, JIm KQ6EA
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