Ot -- hi-fi and tubes

From: ben franchuk <bfranchuk_at_jetnet.ab.ca>
Date: Tue Nov 19 22:28:26 2002

Mike Ford wrote:

> What held up my answer is that I wanted to make a complete reply to the
> questions of motor stiction and fidelity of the contrabass. Ya know,
> something both elegant and informative. The short answer is that yes the
> brush motor does need some minimum signal to get it moving, and as a
> result distortion at very low levels is worse than a typical voicecoil
> driver. Some controller designs actively kickstart motor, most though
> just ignore it since low level bass is fairly inaudible anyway. Once the
> level gets more interesting the universal opinion is that the bass of
> the Contrabass is as good as it gets and pretty much better than
> anything else (Sorry John, even those McCauly woofers). The secret is
> the genius of Tom Danley, who invented the contrabass and patented the
> design, the guy just really understands bass and sound reproduction.
>
Having picked up a old dynaco SCA-35 amp, I noticed it has a loudness
switch. This boosts base and treble with your volume levels. The catch
is it requires a special 4 lead pot that nobody seems to make nowdays.
This may keep most bass at a resonable level if you impliment a loudness
control. Since I live in a apartment I can't have earth shaking bass, so
I am not worried about it.
Received on Tue Nov 19 2002 - 22:28:26 GMT

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