RM4 with RM50 and A/B switch

[withmittens]

I asked this question before but cannot find the thread that answered it perfectly. How is this done properly? I've got my wires crossed...

trying to jump from the RM4 to the two slots in the RM50, essentially having a 6 channel amp. I'm only using an A/B switch, do not have midi

Thanks

 

[MarcoR]

Hmm, the only way I can think to make it work with just an A/B switch is out A to amp and out B to RM4. Output the RM4 to the Parallel return. You?d have to use the parallel return the serial wouldn?t work.

 

[withmittens]

I had it in the serial, the RM4 worked but not the Rm50. Effects knob at full should be same as 100% with no signal interference?

Thanks

 

[MarcoR]

I had it in the serial, the RM4 worked but not the Rm50. Effects knob at full should be same as 100% with no signal interference?

Thanks

I would have the master volume on the RM4 100% and use the Effects Mix on the RM50 to control the volume of the RM4. You shouldn't have interference because the A/B will have cut the signal to the RM50. I see what you are thinking but the parallel loop doesn?t cut your direct signal out at 100% like a mix knob; it is true parallel and functions as a level control for whatever you?re feeding the parallel return.

To be safe and avoid possible noise, put your low gain modules in the RM50 and high gain in the RM4.

Also, if the switch functions as an A/B/Y, you could run two modules in parallel.

 

[MarcoR]

This could be a pro or con depending on how you look at it but any effects in the serial loop of the RM50 will not be available to the RM4 and vice versa.
On the RM4 you have a few options; you could go out the Pre Loop output for the cleanest path, or post loop and use the serial and parallel loop. This is another good reason to put the high gain modules in the RM4 because if you like doing the parallel loop jumper trick, that loop will still be available on the RM4.

 

[withmittens]

it works well this way as i don;t have any super high gain mods. I also only use front of amp effects, so, 50 watt, 6 channel amp......crank up the volume and forget the patched loop for that extra bit of gain. I use a nice boost to cook the pre tubes and this all gives me a very good sound.

Thanks for the help

 

[withmittens]

any clue what kind of midi switcher would work in this situation?

 

[MarcoR]

any clue what kind of midi switcher would work in this situation?

For a small solution I have used the Axess GRX4 and it was very transparent. You still see them on ebay and go between $150 -$250. I have two. I might consider selling one.


The GLAB Midi 2 x loop also worked well and is cheap aprx. $115. I also have one of these I might sell.
http://www.glab.com.pl/midi_2xloop_en

For something small with more options than just toggling preamps, the RJM Mini Effect Gizmo is great (I use one on my pedalboard). They can be found used around $250.

Other options:
Voodoo Lab GCX Guitar Audio Switcher
Sound Sculpture Switchblade (The new 8F looks great)
RJM Effect Gizmo (The full rack version)

 

[maxxstock]

I asked this question before but cannot find the thread that answered it perfectly. How is this done properly? I've got my wires crossed...

trying to jump from the RM4 to the two slots in the RM50, essentially having a 6 channel amp. I'm only using an A/B switch, do not have midi

Thanks

RJM Y-not.

This is what you need :wink:

I have one for sale...

 

[MarcoR]

I asked this question before but cannot find the thread that answered it perfectly. How is this done properly? I've got my wires crossed...

trying to jump from the RM4 to the two slots in the RM50, essentially having a 6 channel amp. I'm only using an A/B switch, do not have midi

Thanks

RJM Y-not.

This is what you need :wink:

I have one for sale...

How do you wire that up to toggle effectively between the preamps and output to the power section of the host amp? I just see the Y-not toggling the front but not the back.

 

[trimix]

I use a Rocktron PatchMate Loop 8 Floor for doing exactly this. All 8 loops have an in/send/return/out connection so to switch between my Jet City 50's preamp and my RM4 I just patch the JC's fx send to one loop input and the RM4 to that loop's return. That loop's out feeds the JC's fx return. I split the guitar into both preamps from a dual output pedal, so selecting the RM4 preamp in place of the Jet City is just engaging the one loop.
I bought the Rocktron on here from MarcoR.

 

[MarcoR]

to switch between my Jet City 50's preamp and my RM4 I just patch the JC's fx send to one loop input and the RM4 to that loop's return. That loop's out feeds the JC's fx return. I split the guitar into both preamps from a dual output pedal, so selecting the RM4 preamp in place of the Jet City is just engaging the one loop.

A very clever way to hook it up! Glad that's still working well for you.

 

[withmittens]

Thanks for the good info.

Marco, I may call on you after I figure out what to use

 

[MarcoR]

Thanks for the good info.

Marco, I may call on you after I figure out what to use

No problem. My only suggestion is to consider other equipment that you might decide to add down the road like a second RM4/M4 or effects. It?s best to decide what the ultimate goal will be and build around that.

 

[withmittens]

Ideally I would want to control both the RM50 pre's and the RM4 along with various presets of pedal combos. No rack gear except an RM4, I don't think I would do 2 of those. that's it really. Is this one controller or two?

 

[MarcoR]

Ideally I would want to control both the RM50 pre's and the RM4 along with various presets of pedal combos. No rack gear except an RM4, I don't think I would do 2 of those. that's it really. Is this one controller or two?

You need a good midi controller that sends both Program Change and Control Change messages on multiple channels and a midi controlled audio switcher (any of the ones I mentioned previously) to toggle the pre-amps to do it right.
If you want presets of pedal combos and don't want to have a rack (or pedals in the rack), You'll need a second audio switcher on the pedalboard.

Here is my old setup where I switched between an M4 and RM4 using the GLab midi 2x switcher looper:

Here is the bottom of my pedalboard that shows the RJM mini effect gizmo for my stomp boxes:

Here is a diagram of what your asking in it's simplest form:

 

[withmittens]

thanks for doing that. I need to wrap my head around that for a while, I've never done anything like this before, always been a pedal to amp guy. probably have a few more questions for you and your available switches....

 

[MarcoR]

The midi controller is the Liquid Foot LF+ 12+. Best piece of gear ever for what it does. You can pretty much configure each switch to do anything you can conceive and more.

 

[MarcoR]

FYI, there is a Axess GRX4 (like the one in my diagram) for sale on RigTalk:

http://www.rig-talk.com/forum/viewtopic.php?f=6&t=162917

Don't know the seller but $150 is a good price for one in that good of condition. The 4th loop on it can be configured to do momentary or latch switching so you could use it to change channels on the RM50 eliminating the need for the RM50 footswitch and provide midi switching capability.

 

[j4q0]

Marco,

Do you use your RJM line mixer to run your reverbs and delays in parallel so you have he tails of them as you switch out their respective loops?