Preamp Into Head Question

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Code001

Code001

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I was told to plug my preamps into my "return" effects loop on my Mark III. However, it doesn't make any sound. If I plug it into my "send" it is amplified correctly.... This is how I'm running it:

Guitar -> MP-1 front input
MP-1 rear output -> Mark III send

So...is my III just weird or something? I haven't tried any other amps.
 
ive been told the same thing and it dont work !

we were on the subject of recording live tracks
and they said hook the Preamps to the return of the Effcts loop
it makes sense right

well i found out that if i do that when i use the preamp and Power amp
it will work because it boost's the signal
i belive that is the correct way to do that
or is it ?

one question i have is
like my rockmaster preamp

it has 2 voltage plug in's 1volt and 3 volt
it is my understanding that the 1 volt is to other effects in 's
such as preamps and poweramps
and the 3 was for Mixer's
or is that the other way around ?

could the 3 volt boost that signal without damageing my amp's loop
 
This is a complete guess, but maybe your MKIII FX loop wont work unless there is something plugged into the "Send" jack. Did you try plugging a cable that goes nowhere into the "Send" and the MP-1 into the "Return"

Like i say, its a guess, but it seems logical. I dont think you can do any damage trying it...
 
ok i figured out
that i can plug up to my guitar in order to use both preamp's
AMP / preamp > processor

since mine dont have 2 input jacks amp wise ( i used a Y cable )
i ran both preamps with the guitars signal

i then ran my 2101 effects out into my head
and the head return back to the 2101
which worked fine for me

however i did have to deal with the effects from the processor
on both preamps
must need to turn something off
because the programable loop on the 2101

thats not to say its Bad or anything
i think that helped out the Carvin a good deal :)

yeah i figured out the 1 and 3 volt thing with the rock master finaly
whats cool is i hooked up the 2101 into the comon effects loop of the rockmaster then ran that to the Carvin head

so i used 2 preamps and a preamp / processor :o
 
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Code001":21f00 said:
I was told to plug my preamps into my "return" effects loop on my Mark III. However, it doesn't make any sound. If I plug it into my "send" it is amplified correctly.... This is how I'm running it:

Guitar -> MP-1 front input
MP-1 rear output -> Mark III send

So...is my III just weird or something? I haven't tried any other amps.
Click to expand...

Were you plugging your guitar into your preamp or your mkIII?
 
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Code001":b768b said:
Guitar went into the MP1 i.e. preamp.
Click to expand...

weird.... My old setup I used a racked MKIII, FX send into a TC 2290 and L out of the 2290 back in to the racked MKIII return and the R out of the TC 2290 into the FX return of my MKIII Coliseum.
 
That's just setting up effects though. My III works exactly like that when I use my Intellifex and MultiValve. Send -> Intellifex In. Intellifex Out -> MultiValve In. MultiValve Out -> Return.

However, when I want to slave the III and only use it as a poweramp, I have to plug into the send and not the return. I plug my guitar into the preamp I'm using.
 
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Code001":b1a25 said:
That's just setting up effects though. My III works exactly like that when I use my Intellifex and MultiValve. Send -> Intellifex In. Intellifex Out -> MultiValve In. MultiValve Out -> Return.

However, when I want to slave the III and only use it as a poweramp, I have to plug into the send and not the return. I plug my guitar into the preamp I'm using.
Click to expand...

Weird... because that's plugging an output into another output, but if it works.

When I ran the 2 boogies both MKIII heads even with no FX, I took send of 1 into FX return of the other. I ran the 2nd head on the clean channel and the head my guitar plugged into was just acting as the gain stage for both; each had it's own cab.
 
If you're slaving the III then yeah, you are using the send/send control which is only the III. If you want to use it as a poweramp, you should be able to simply plug straight into the mp1, then the mp1 output into the III fx return. Something seems weird.
 
funny...ive used my Rockmaster through my 5150 return...it didnt work at first but i turned the loop on and it worked after that LOL

as for the outputs on the rockmaster, you can get the manual from the Peavey website...i would use the higher output to a poweramp (which is what i did with the 5150). the lower one can be used as well, but you wont be pushing as much out obviously, so youll have to turn the volume up higher (kinda like a switch to switch from high to low gain).
 
I use the higher output one on the Rockmaster, but I need to send it to Jerry since the solder joints are gay and the volume cuts in and out. Maybe it's just the way the III is designed? I haven't tried using any other heads as poweramps.
 
I know other people have used the III as a poweramp so it's gotta work :D
 
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Code001":36b32 said:
I use the higher output one on the Rockmaster, but I need to send it to Jerry since the solder joints are gay and the volume cuts in and out. Maybe it's just the way the III is designed? I haven't tried using any other heads as poweramps.
Click to expand...

yea, i need to get my Rockmaster worked on as well. im going to have a Classic 120 poweramp soon, and i need that Rockmaster in tip-top shape!!

the Mark III might be weird...do you have a manual? might wanna look into DLing one from the Mesa site if they have one and see what it says. i know some of the features of the Mesa amps sometimes are a bit different than normal amps.
 
I got the manual. It doesn't say anything about that.

"The Effects Loop circuitry of the Mark III is very sophisticated and works very well with nearly all units. The maximum signal strength
obtainable is around 0.6 volts RMS, or about the same as a guitar pickup. Only the lowest quality, cheap digital delays may experience
some overload and we feel the problem here is caused by poor effect design, which would cost only pennies to remedy. Worst
offenders: Roland SDE 1000, Effectron Jr. Please call Roland or Delta to complain ... not us! Suggest that they "pad their input and
buffer their output", as the real world requires! However, it is possible to further lower the Boogie's Effect output strength but not without
increasing the noise and sacrificing some tone. For those who wish to do this we recommend changing resistor R230 from 6.8K to
4.7K. R230 can be located by following the Black wire from the Send jack back to the circuit board. In the Rhythm modes the Volume 1
control determines the Effects Send level, and in the Lead mode, it is the Lead Master. By running the Master 1 higher and these two
controls lower, you can improve the performance of sub-standard effects."
 
There are a few fx loop mods so maybe someone did something and simply reversed the locations :)
 
But if it were reversed, that would mean my effects inputs/outs would be reversed too. My effects are set like any other amp. See above.
 
hmmm weird...maybe contact Mesa? thats all i can think of. ive never dealt with a mark series amp.
 
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