PLEASE HELP ME CHOOSE

[dave.amels@sfnet.com]

Malte wrote:

H >"The pre-amp offers some interesting possibilities.
H >If you increase for example the loudness of the pre-amp and decrease t
H >loudness of the Leslie you get the same overall volume, but the actual
H >sound changes. It becomes more like the typical 'tube overdrive' that 
H >used very often in rock music and sometimes in jazz.
H >The sounds gets more and more 'smokey' up to a real 'roaring' with the
H >preamp at full load."
H >
H >(poor translation mine:-)
H >
H >Can anybody confirm this?

Yes, this is true.  The 12BH7 single ended transformer output of the B-3 
preamp adds a lot of distortion if you load it down.  Turning the pot on 
the Leslie amp down deceases is input impedance alot.  The input impedance 
of a Leslie amp varies from 20K to 120K depending on the position of the 
input attenuator.  Peter Miller out at CAE in San Mateo, CA has made a 
detailed analysis of this phenomenon.  Hope this helps.

/Dave
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