"Sonnova" <sonnova@[EMAIL PROTECTED]
> wrote in message
news:fspc0q02bc8@[EMAIL PROTECTED]
> On Sun, 30 Mar 2008 14:47:24 -0700, Dallas wrote
> (in article <fsp1pc02uac@[EMAIL PROTECTED]
>):
>
>> My NAD 314 has developed both a nasty little hiss and a hum. I'm
>> wondering
>> if there are some rules of thumb for tracking down these symptoms.
>>
>> I use generic cheap (Radio Shackish) RCA cables, I'm not sure if they
are
>> really ****elded. Could that be it?
>>
>> I do have the ground terminal connected to the NAD, disconnection it
>> makes
>> no difference.
>>
>> Any ideas?
>>
>> Dallas
>
> Try making sure that all components in your system that use
three-pronged
> grounding mains cables plug into the SAME wall outlet (via a plug strip)
> Using different wall sockets for different components is BEGGING for a
> ground
> loop.
>
> And you should really be using quasi-balanced interconnects (the ones
with
> the arrow on the cable somewhere pointing in one direction). All of them
> should be pointing away from your control center. The arrow means that
> ****eld
> is floating (not connected to anything) on the end that the arrow is
> pointing
> toward. Make sure that all of the ****elds terminate at your control
center
> (whether that be a preamp or an integrated amp or a receiver. The
> arrow-end
> of the cables should then connect to the power amps (if applicable), the
> CD/DVD player, the tuner, the tape deck (both record out and monitor
> connectors). I'm not suggesting that this methodology (called a star
> grounding technique) will solve your current problems (but it might).
It's
> just good practice because regular coaxial interconnects are only half
> ****elded as the ****eld is also the signal return. In quasi-balanced
cinch
> (or
> RCA) cables the ****eld carries NO signal and is only a ****eld for the
two
> current-carrying conductors inside.
Ok, I'll bite. How does that work? Rca only has 2 connections. One is
the
ground.
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