From sdiedrichsen@b-three.de Mon Feb 16 04:41:01 2004
Subject:Re: Whats Rotosonic - was stiring things up - Nord + 822


Am 13.02.2004 um 19:20 schrieb theb3freak:

> Steffan, it would seem that that setup would allow the pedal tones to
> remain pretty much unmodulated, regardles of the speed setting.

Right. The rotosonic drum isa bit displaced, so the interaction with
the pedal tones is limited.

> Frequencies between 450 Hz and 800 Hz would modulate with the horn
> rotation rather than the "rotor", and the "rotor" would emphasize a
> narrower but more prominant low-mid range.  Because of the altered
> rotor positioning in the proline cabinets and introduction of 6 x 9s,
> I would guess that the modulation is different than if the same 150 Hz
> to 450 Hz frequencies were run through a normal 122-style rotor. 

Right.

> Did
> you incorporate these differences into the EVB3's "Proline" cabinet
> selection, or is that more similar to the "wood" cabinet model, less
> some of its resonance algorithms? 

Indeed, I didn't model the "Proline" after a 822, but more like a 760.
The main difference in the cabinet is, that the louvres are much more
open and therefore the resonances inside the cabinet aren't that
strong.

> I'll have to play with it and
> listen next time I practice.  If you did, and my theory is correct, my
> pedal tones should remain fairly unaltered regardless of Leslie speed.
> Morever, it appears that these cabinets need a bit of rotor
> replacement surgery to make them like a 122/142/147/145, in addition
> to the obvious amp and crossover differences.

They need a lot of surgery. But I like those 822 as they are. Only the
6x9 stationary speakers are a bit odd.

Steffan

>

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