Re: rotosonic

["A. B. Bonds" <ab@vuse.vanderbilt.edu>]

In <951203190803_123931314@mail02.mail.aol.com>, Foggy59@aol.com wrote:
>   I had a 760 and forget about the 6+9 ..tere wasno such arangement
>but power up the pooper yes.I sold it for 300 baloons with a preamp,
>now I can't sleep night because of my haste.

I've got an 815.  It has ->4<- count 'em, 4 amplifiers, looks to be
about 50w each.  One drives the rotary high channel, one drives three
6 x 9" midranges, one drives the 15" woofer and one drives the
rotosonic drum, which has a hefty 6 x 9 in it.  The drum is near the
woofer, but is offset and the top is flat.  It does not seem to have
any modulatory effect on the low bass.

It has an 11-pin input.  There is only a single audio input channel,
which is split to four individual level pots for the four channels.
All of the channels go through crossovers, so the correct frequencies
go to the correct speakers.  Rotors are 2-speed, and there is a
braking action (from the slow motor) when the fast speed is cancelled.

The thing is huge (about the size of a small refrigerator) and ugly,
black naugahyde, casters and stage handles.  The treble driver 
arrangement is essentially identical with the trad Leslies, and to
my ears the Rotosonic channel is not that far off from what one would
want.  It certainly gets loud, and given what I paid for it is far
better than no Leslie at all.  IMO the solid state units are not too
bad if one is available and cheap.  The Classic Sound is something of
a luxury, you must either be able to afford it or get lucky.

                        A. B. Bonds