Forum to discuss all matters relating to the MPC1000 and MPC2500 operating systems created by 'JJ' (all versions).
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By thedvs01 Wed Jun 27, 2007 6:04 pm
Last night I took the 1000 to a friends house to do some jamming and shit. I went to the INPUT screen and turned Input-thru on and told it to send the stereo analog inputs through to the "1" assignable output in order to have the two bass guitars I had plugged into the inputs be routed to a bass amp at the same time.

Problem was that it would only send one of the guitars (the left) through to "1"

I was hoping that it would take the stereo signal and send it out mono, but this was not the case even though the way I had the options set up it lead me to believe this would be possible

Is there some way of doing this or what? Did I just miss something or do you have to use the assignable outs in pairs only? Could I have panned something hard left in the mixer in order to get both analog inputs coming out of just one of the assignable outs?
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By Rise of EPC Wed Jun 27, 2007 6:45 pm
i havent tested. but i think you need to set it as

input L mono -> output 1
input R mono -> output 2

just a idea... if you didnt already try it.
... i went n tested..

looks like you have to use output 1/2 ... and st input... thats kind of a bummer.
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By thedvs01 Wed Jun 27, 2007 7:05 pm
Rise of EPC wrote:i havent tested. but i think you need to set it as

input L mono -> output 1
input R mono -> output 2

just a idea... if you didnt already try it.
... i went n tested..

looks like you have to use output 1/2 ... and st input... thats kind of a bummer.


Quite a bummer, as the amplifier only had one input. I guess some sort of Stereo-to-mono cable is necessary.

I wonder if it'd be possible for JJ to implement something that would allow both analog inputs to be routed through to the "1" output as mono
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By goobadrum Fri Jun 29, 2007 8:44 am
I guess some sort of Stereo-to-mono cable is necessary.


yep , that's what I'd do .... or even better,use a mixer ,
then you'll get some sort of control

sounds like fun though !
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By thedvs01 Mon Jul 02, 2007 9:17 pm
Yeah a mixer is the one thing that I don't have that I probably need the most. I usually just use the Windows sound control mixer :lol:

I wish in the mean time though there was a way to pan one of the analog inputs hard left so that I could get both Stereo In's going out of a single assignable out (number 1).

That would really help me out (although the input-thru isn't exactly the cleanest of signals, I get a bit of noise on mine... anyone else?)

By truvc Mon Jul 02, 2007 10:11 pm
thedvs01 wrote:(although the input-thru isn't exactly the cleanest of signals, I get a bit of noise on mine... anyone else?)

i think it is because you are not meant to plug bass guitars straight in the input of the mpc. impedance difference. i can be wrong, but you might want to check this out.

also mixers are so cheap these days (like $50 new :shock: )
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By goobadrum Tue Jul 03, 2007 2:57 am
i think it is because you are not meant to plug bass guitars straight in the input of the mpc. impedance difference. i can be wrong, but you might want to check this out.


spot on , instrument level isn't line level , but it's close enough to 'work'.

could also be an earth loop going back through the basses , try unplugging one of 'em at the mpc and see what happens to the noise

best get a mixer ! :)
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By thedvs01 Thu Jul 05, 2007 5:46 pm
goobadrum wrote:
i think it is because you are not meant to plug bass guitars straight in the input of the mpc. impedance difference. i can be wrong, but you might want to check this out.


spot on , instrument level isn't line level , but it's close enough to 'work'.

could also be an earth loop going back through the basses , try unplugging one of 'em at the mpc and see what happens to the noise

best get a mixer ! :)


I figured that was the reason for the noise, but I still really wish I could get input through to works as a Stereo-to-Mono type thing, having both of the analog inputs converted into one mono signal out of a single assignable output, but this is probably some sort of hardware design limitation.