I have bought a Marshall JVM 205H with a 4×12″ Marshall Cabinett (1960) and a Roland BOSS GT 100. Because I want to use the 4 cable method for best sound, I looked through the web, found some videos and spent several hours to figure out things. Maybe it is not perfect, but I want to share my experiences with you.
Here you can see how I put cables together with the Amp:
Also my Amp settings:
Here you can download a diagram, how I did programming all the 200 user defined patches (was alot of work). You will find these patches below (Download). I also changed GT 100 settings. Choose „System->Output->Stack Return“ or whatever matches your Amp.
Here are my first 7 patches done for the 4 cable method. As I only use the distortion of my Marshall Amp, I have disabled all PrA/B settings and turned the input level back to 0dB. They start at U002-1 to U003-3. They have a prefix CR (Christian Rößner), CL for Clean and OD for Overdrive. If a /P is seen, Phaser is active. The second line in the LCD shows the Marshall channel mode (G,O,R for green, orange and red) followed ba the Accel pad (you can turn on Chorus or Compressor):
Download: CR 4 Cable Method Patches
Here is a full example, of how I did a patch. Background: I love to have a lto of gain and volume on the overdrive channel, when playing solo parts. But if I turn the knobs too high, the orange channel has too much gain as well. So if I want to play a song, which needs a rhythm overdrive sound, the orange channel is too much. Unfortunately the green channel is too less gain and overdrive. So here comes the point, where I make use of the features of the GT-100.
I decided to use the GT-100 for the rhythm section. I use MIDI to tell the amp to go on the green channel. If I switch to my solo patch, the amp switches to red. Second thing is using reverb. The reverb on the amp is designed to fade out, if switching the channel. While playing rythm guitar, I use the GT-100 to do reverb, as I can do a lot of settings here. Switching to solo, I use the amps reverb, because if my solo finishes and I return to the rhythm section, the reverb is not just shot off.
So here is, how I did the rhythm patch. First of all, you can have a look at the system settings that I use (thanks to Glenn DeLaune!)
I am not using any PrA/B from the GT-100!
Next you can see all the effects I am using. I also use „chorus“ with the Accel pad, but left the settings at their default values
So the sound I got, is similar to the grenn channel on the amp, but with more drive and a sligthy modified reverb.
I hope that helps some people to get a feeling, what you can do with the GT-100 and a 4 cable mthod. Enjoy!
Many thanks to:
…and to Sebastian Baetz and Thomas Pottek from Musikhaus SCHOENAU in Gießen
Feedback is very welcome!