MOTM

Hi all.

Now that I have my 490 running, I want to hear the sound of 
a slightly distorted moog filter.

What do you guys use to boost an external audio signal (like 
an Andromeda voice) up to the MOTM level (or beyond)? Will 
the 190 do the job? Alternatives?

Thanks,
Robert

The best choice is a channel strip product of some sort with gobs of headroom and a 
D.I. input. The best choice until the MOTM pre-amp comes out, of course..

The 190 probably has enough gain to get it into reasonable operating levels, but not 
enough to distort it. 

Max

--- In motm@yahoogroups.com, Robert van der Kamp <robnet@w...> wrote:

> Hi all.
> 
> Now that I have my 490 running, I want to hear the sound of 
> a slightly distorted moog filter.
> 
> What do you guys use to boost an external audio signal (like 
> an Andromeda voice) up to the MOTM level (or beyond)? Will 
> the 190 do the job? Alternatives?
> 
> Thanks,
> Robert

You might try multing your signal to two or all three 490 inputs, though the 
Andy may need some additional boost from a mixer, external pre, etc. I don't 
believe there are any stock MOTM modules that provide "flat" gain (greater 
than unity) with one input.

B a r r y S t r a m p

--- In motm@yahoogroups.com, Robert van der Kamp <robnet@w...> wrote:

> Hi all.
> 
> Now that I have my 490 running, I want to hear the sound of 
> a slightly distorted moog filter.
> 
> What do you guys use to boost an external audio signal (like 
> an Andromeda voice) up to the MOTM level (or beyond)? Will 
> the 190 do the job? Alternatives?
> 
> Thanks,
> Robert

I suggest running thru your mixer than use the direct
out... or the FMR RNP preamp. This is what I do since 
I have had no synth (mono) throwing out enough gain to
drive a MOTM filter.


--- Robert van der Kamp <robnet@...> wrote:
> Hi all.
> 
> Now that I have my 490 running, I want to hear the
> sound of 
> a slightly distorted moog filter.
> 
> What do you guys use to boost an external audio
> signal (like 
> an Andromeda voice) up to the MOTM level (or
> beyond)? Will 
> the 190 do the job? Alternatives?
> 
> Thanks,
> Robert
> 
> 


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On Wednesday 12 November 2003 18:25, rreprobate wrote:
> The best choice is a channel strip product of some sort
> with gobs of headroom and a D.I. input. The best choice
> until the MOTM pre-amp comes out, of course..

Wasn't the MOTM pre-amp idea ditched? Or was that the 
turntable preamp? 
>
> The 190 probably has enough gain to get it into
> reasonable operating levels, but not enough to distort
> it.

I see, too bad. I'll try to abuse one of my mixer strips 
than, but I guess I need some better solution.

Will a preamp crank up the level to MOTM levels (10V pk-pk) 
anyway? Isn't that way too hot, even for pro audio 
environments? 

(Don't hit me if I said something terribly dumb.)

- Robert

On Thursday 13 November 2003 03:32, coyoteous wrote:
> You might try multing your signal to two or all three 490
> inputs, though the Andy may need some additional boost
> from a mixer, external pre, etc. I don't believe there
> are any stock MOTM modules that provide "flat" gain
> (greater than unity) with one input.

I remember reading a somewhere in the docs in one of my kits 
about a knob having a scale of 0-2, where the '5' position 
was unity gain. This was probably the 190 that I still have 
to build. I'll have to check that.

Btw, I never would have thought that multing a singal into 
the three 490 inputs would work. My gut feeling was that 
the energy of the source signal would be distributed over 
the 3 inputs. But I'll sure try.

Thanks,
Robert

On Thursday 13 November 2003 15:27, 
Black_Man_Music@... wrote:
> I suggest running thru your mixer than use the direct
> out... or the FMR RNP preamp. This is what I do since
> I have had no synth (mono) throwing out enough gain to
> drive a MOTM filter.

Thanks for the tip. How do you know the level is hot enough 
to drive a MOTM filter? Did you measure the RNP's output?

- Robert

10V is .... *eyes shut squints brain hurts for a second*

+22 db 

I think.

You can check your equipment's specs to see how close you can get to that. Many pro 
consoles run on 18 volt rails, and theoretically have better headroom than a MOTM. I 
think Mackies poop out about right there.

That's all the log math I can handle for one day.

Max

> I see, too bad. I'll try to abuse one of my mixer strips 
> than, but I guess I need some better solution.
> 
> Will a preamp crank up the level to MOTM levels (10V pk-pk) 
> anyway? Isn't that way too hot, even for pro audio 
> environments? 
> 
> (Don't hit me if I said something terribly dumb.)
> 
> - Robert

You should get about 6 dB of gain for each doubling of the number of inputs - 
works for CV ins, too.

B a r r y S t r a m p

--- In motm@yahoogroups.com, Robert van der Kamp <robnet@w...> wrote:

> On Thursday 13 November 2003 03:32, coyoteous wrote:
> > You might try multing your signal to two or all three 490
> > inputs, though the Andy may need some additional boost
> > from a mixer, external pre, etc. I don't believe there
> > are any stock MOTM modules that provide "flat" gain
> > (greater than unity) with one input.
> 
> I remember reading a somewhere in the docs in one of my kits 
> about a knob having a scale of 0-2, where the '5' position 
> was unity gain. This was probably the 190 that I still have 
> to build. I'll have to check that.
> 
> Btw, I never would have thought that multing a singal into 
> the three 490 inputs would work. My gut feeling was that 
> the energy of the source signal would be distributed over 
> the 3 inputs. But I'll sure try.
> 
> Thanks,
> Robert

No... didn't measure, just hooked it up and it worked.
Any preamp will do, the RNP is just cleaner and pretty
cheap for the quality. As I am sure any pro or
semi-pro mixer will provide enough gain.


> 
> Thanks for the tip. How do you know the level is hot
> enough 
> to drive a MOTM filter? Did you measure the RNP's
> output?
> 
> - Robert
> 
> 


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Correction re: MOTM modules that provide "flat" gain (greater than unity) with 
one input -  the 420 has about 7dB. No doubt you get some nice character, 
too. Anyone know of others?

B a r r y S t r a m p

--- In motm@yahoogroups.com, "coyoteous" <satori@t...> wrote:
> You should get about 6 dB of gain for each doubling of the number of inputs 
- 

> works for CV ins, too.
> 
> B a r r y S t r a m p
> 
> --- In motm@yahoogroups.com, Robert van der Kamp <robnet@w...> wrote:
> > On Thursday 13 November 2003 03:32, coyoteous wrote:
> > > You might try multing your signal to two or all three 490
> > > inputs, though the Andy may need some additional boost
> > > from a mixer, external pre, etc. I don't believe there
> > > are any stock MOTM modules that provide "flat" gain
> > > (greater than unity) with one input.
> > 
> > I remember reading a somewhere in the docs in one of my kits 
> > about a knob having a scale of 0-2, where the '5' position 
> > was unity gain. This was probably the 190 that I still have 
> > to build. I'll have to check that.
> > 
> > Btw, I never would have thought that multing a singal into 
> > the three 490 inputs would work. My gut feeling was that 
> > the energy of the source signal would be distributed over 
> > the 3 inputs. But I'll sure try.
> > 
> > Thanks,
> > Robert