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Subject: Re: [motm] Asking for input: I/O Module

From: "J. Larry Hendry" <jlarryh@...>
Date: 2003-08-22

> ----- Original Message -----
> From: Paul Schreiber <synth1@...>
> a) These I/O modules ∗do not∗ replace the Triple Pre-Amp (1U) modules.
Which, BTW, I ordered prototype parts for today :)

> b) I am leaning towards 3 modules:
Crazy talk??!?

YES. That is nuts in my book -- a preamp and 3 other modules for I/0.
Sorry, I cannot see 4 or more U of space in my system for just I/O. How
about just 2 modules. One is a input / preamp module one is the output
module.

> a new I/O module. This is what I'm thinking about:
> a) has 2ea MOTM level-to-balanced out (+4dbu into 2 XLRs and TRS jack)

I like that on the output module. I do like the idea of the combo XLR / TRS
jacks for saving panels space. Then, if you wanted you could also provide an
unbalanced output with the 1/4 only jack.

> b) High-end headphone amp with several sneaky tricks (not telling!).

I can see that on the output module. The other thing that would be cool on
the output module in my opinion is an effects loop (send and receive jacks)
that assume the effects will be an unbalanced line level.

> c) 2ea balanced in (XLR + 1 TRS) to MOTM level (+4dBu >>10V pk-pk)

Why? I can see one channel of the preamp with a balanced and unbalanced
input (switchable line/mic level). Maybe the second channel is the same.
Channel # 3 is for guitar / instrument / phono level inputs. Would that not
all be in the range of one control to adjust What other input do you need
to make the input module separate from the preamp module?

> Any thoughts (no 100 segment VFD bar graphs...sorry!)

Ok. But, I do like the idea of a single bi-color LED green for signal / red
for peak.

Larry