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Subject: Superladder/Multiladder - 3U vs 2U (long)

From: mate_stubb@...
Date: 2001-02-04

--- In motm@y..., Stooge Barlow wrote:
>
> Am I the only one that sees the utility of a 1U 4 knob Oakley AD/AR
> module? I think this would be much more useful than the triple 2U
> version with shared AD and AR controls.

In a word, YES<g>. Everybody else wants multiple ARs instead. We can
probably accomodate you with a one-off sometime. Email me privately.

> Hey Moe, (or anybody), tell us what you would imagine a 3U
> SuperLadder to feature -- it seems that the MOTM 2U have good
> control features and don't really need that many more. OTOH the
> MultiLadder might need a 3U panel to allow all the internal
> patching/switching kind of stuff.

This is a good time to talk about 3U vs 2U for the Superladder.

Have you looked at Tony's 3U layout for the Superladder? It contains
the following controls in common with a 440:
FREQ POT
RES POT
3 AUDIO POTS
2 CV POTS
3 AUDIO INPUTS
1V/OCT INPUT
2 CV INPUTS
RES CV INPUT
4 POLE LP (MAIN) OUT

In addition, there is a free onboard VCA that is set up to modulate a
dedicated EG input. So his layout adds:
ENV INPUT
ENV POT
ENV MOD INPUT
ENV MOD POT

Since he has extra space to work with, might as well add an
attenuator on the resonance cv:
RES CV POT

Finally, the Superladder has two extra filter outputs:
BANDPASS OUT
1 POLE LP OUT

So, let's see what we could cram into 2U, and what we'd have to give
up. Assume we take the first group on faith - 3 input and 2 cv
attenuators, res input. What we have looks just like the 440 except
for the switch. You could fit 2 jacks into that space. To me, the
bandpass and 1P lowpass would be the most valuable features to
retain. So you'd basically throw away the vca and associated controls.

Now, what about the MultiLadder? If it was just me building for
myself, I'd make a 3U panel. In that extra width I'd add a 4 input
dedicated mixer (no input jacks), inputs hardwired to the 4 separate
outputs. A single output jack would carry the mix response. The
inputs would use reversing attenuators just like the MultiMix. In
fact, a 4 pot version of the multimix would be perfect. By adding and
subtracting differing amounts of the various outputs, you could
achieve a wide variety of responses.

Another thing you could do, is make the filter output mixer a
separate 1U panel, that would mount right next to the MultiLadder.
You'd have to normal its inputs by hardwiring them to the
multiladder's jacks.

Anybody want to debate the design of these two panels?

Moe