[Vintage-Audio] H. Scott Center Channel

Sat Feb 8 19:38:00 2003

This was not an un-common feature on amps of this vintage. The output is
summed from both channels, and is at "speaker level". It is not generally
possible to do this trick with solid state, hence the disappearance of this
feature from the industry.
Just connect a suitable speaker, and enjoy. Three channel systems are great,
especially when using rather small speakers in a large room where they are
spread apart. The third speaker eliminates the "hole in the middle" effect
of such a rig. You may want to place an attenuater in line, in order to
compensate for the relative efficiency differences of the speakers. The best
set-up of this type was used by McIntosh and others who made separate pre
and power amps. The three channels came out of the preamp at line level, and
each could be run through an appropriate power amp to it's respective
speaker. This system enabled the independent setting of main and center
channel levels.
Chuck N1LNH
----- Original Message -----
From: "Duane Fischer, W8DBF" <[email protected]>
To: <[email protected]>
Sent: Saturday, February 08, 2003 6:18 PM
Subject: [Vintage-Audio] H. Scott Center Channel


>
>
> The H. Scott LK-72b integrated stereo amplifier has provisions for a
center
> channel output. Can someone please tell me about it?
>
> I am presuming it is a mix of the left and right channels?
>
> I am also presuming that to utilize this center channel requires a power
amp?
>
> What controls the center channel: the primary amplifier or the power
amplifier?
>
>
> A rather innovative concept for 1963.
>
> Thanks.
>
> Duane Fischer, W8DBF
> [email protected]
>
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