Voodoo Lab

Hei there wizzkids,

I am totally new to this forum so first of all ... respect to all the writers and the solutions this community provides. I am from the Nertherlands and I read here every now and then. I bought my GCPro and GCX recently to get rid of all the switching probs that I' ve had.

My setup is as follows.
Diezel VH4
Pre to the amp-input I have:
Exotic - BB Preamp
Danelectro - Transparent OD (V1)
Award Session - JD-
Jim Dunlop - Fuzzface
In the loop section of the amp I have :
Rocktron - Replifex

With the pre section everything is good and running.
The loop section is where the trouble starts.
The Diezel has a seriell and a parallel loop section. What I was intending to do was to get all the volume dependend presets from the Replifex (like Tremolo and Rotation) in the seriell loop and the rest (chorus, delays, reverbs etc)in the paralell loop.
For that I made to mono Y cables to lead the signal from the Repli into loop 7 and 8 of the GCX (splitted sides at the GCX). It works either way as long as you use only one send of the Y cable. As soon as the second send cable is inserted the loops are shut down. I am using mono cables coming from the amp and going back to it (Loop7 for seriell loop8 for parallel)
The loops are set to normal on the GCpro.

Anyone ever did this or heard about this? Am I doing something wrong? Please please crush your brains for a solution.
Thanks very much for a reply.

Greetings from the Netherlands
Andreas

If I understand correctly, you are attempting to run the Replifex in both the series and parallel effects loops? If so, that right there is the problem... this cannot be done. Even if you can find a way to cable it all up so it will produce sound, the settings of the processor will be all wrong for one of the loop types. For instance: When you run a processor in series you want the effects and the dry signal to be present at the output of the processor... when you run a processor in parallel you want only the effects present at the output of the processor (a.k.a. 100% wet). Allowing the dry signal to go through a processor in a parallel effects loop will usually result in phasing problems. Killing the dry signal in a series loop will eliminate your guitar signal and you will only hear the effects. As I see it, because you are using more than just reverb and delays from the Replifex, you have no real choice but to run it in the series loop only.

...or I have completely misunderstood your setup question and your problem lies elsewhere.

Hi and thanks for the reply,
seriel and parallel not at the same time of course. The presets are programmed to either suite a serial or a parallel loop. For some friggin reason it shortcuts either the repli or my amp loops if you cable it like I described it: -seriel Diezel loop to GCX 7- / -Parallel Diezel loop to GCX8-. Repli in one Okay... Repli in the second ... oops it's dead.

Thanks again. Any left

Perhaps I wasn't totally clear. I figured you didn't think you were going to be able to run these simultaneously. What I am saying is that you cannot share this one unit between the two effects loops using the GCX to switch between them... I then went on to explain that even if there were some way to connect this so you could A/B switch which effects loop the Replifex was in, why it still wouldn't work correctly. Your only option at this point is to use only the series loop.
The internal series/parallel effects routing options on the Replifex have nothing to do with the type of loop they are connected to. Multi effects processors are intended to be connected to a series loop. The internal effect routings can be set series or parallel, but this is basically just defining which effect blocks will be driven by the digitized "dry" signal and mixed back in with the rest of the effects before everything is converted back to an analog signal and sent to the unit's output jack(s). Only in the cases where a user is using only the time based effects is it possible to successfully route a multi effects processor in a parallel loop, but it is then absolutely necessary to run the processor 100% wet.
Your best option is to run two completely separate processors... one for the series effects and one for the parallel effects. If by chance you are able to run the left and right sides as completely different signal paths that do not pan in a stereo image and can assign each with completely differing effect types and routings, then there is a chance you could use a single unit in both loops... but I believe this sort of functionality was a long way from reality when Rocktron introduced the Replifex.