| Audio Tweaks - Tweak Ref. 363 |
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| Cheap
AC line noise filter |
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| 363 |
Steve
Lindenfeld |
Good |
$16.99 |
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| Radio
Shack |
Radio
Shack (cat. 15-1111) |
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| This
filter can only take ~300 Watts, so I wouldn't recommend
plugging your power amp or receiver into it, but it's fine
for most sources (CD player, DVD player, tape deck, etc.)
and most preamplifiers. Just make sure you're not drawing
too much current through it (those specs in the back of your
owner's manuals really come in handy). I've plugged in my
preamp/tuner, my cassette dack and my CD player into one of
these filters via a "cube tap". It seems to work
pretty well. You might also consider purchasing multiple
units, so that each of your components has its own filter.
What the hey, they're cheap. |
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| Just
plug it up as described. Make SURE you've got a good ground
at the point where the AC goes into the filter (the
"third-prong"), or it won't work, even if all your
equipment has only two-prong AC plugs. |
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| The
thing is basically a low-pass filter, which attenuates
higher frequencies coming through your AC wiring (see RS
website for specs) up to 40 dBs. Its intended use is to
filter out what we in the business call "eft"s, or
"electrically fast transients". These can occur
when your roommate fires up the hair dryer in the morning,
for example. To be perfectly honest, I'm not really sure if
it makes an audible difference in the sound of my system,
yet, but at 17 bucks apiece, you can experiment. |
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| I
welcome replies from people who have tried this. |
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