This is where it gets a little nuts.

Here is where I've posted schematics of exactly how it is my rig does what it does, and details how incredibly flexible it is for me.

If you've come this far through my personal site to find this page, you must be as gear-crazy as I am. If you found this page from a link or a bulletin board, perhaps you're just curious. Hope it all makes sense.

Understandably, there are several large graphics - please allow them to load so you can, err, get the full picture.

As you can see, there's a lot of routing going on. Essentially, there's a total of four effects loops in action - two on the ADA preamp, and two on the Axess GRX4.

• Loop "A" on the ADA is a simple effects loop which activates the subharmonic synth. The subharmonic synth is the only piece of gear in the rack that isn't MIDI controllable. The loop acts as a basic ON/OFF for the preset settings on the unit.
• Loop "B" on the ADA is actually acting as a "parent loop" for the two loops on the GRX4, meaning that the GRX4 is an "expansion" or "subloop" to the preamp's loop. Enabling Loop B sends the full signal from the preamp (including loop A) through the loop systems of the GRX4.
• Loop "2" on the GRX4 actually acts as a "source selector." When not active, the incoming signal from the preamp just passes by and goes through the rest of the unit. However, when activated -- since there is nothing plugged into the "send" -- the signal from the preamp effectively dead-ends here. It is, however, replaced by the incoming signal at the return for loop 2, which is the output from the MIDI bass synth.
• Loop "4" on the GRX4 is used as another conventional loop which allows me to put the Analog Filter in or out of the signal chain.
• (Loops 1 and 3 on the GRX4 are currently unused.)

 
So, for instance, here are four possible routing combinations for loop "B" that have different effects (no pun intended) on what gets sent back to the preamp, and ultimately, my speakers and the soundman's input:

No loops are active, therefore the straight bass tone passes through the preamp with no interruptions.

 

Here ADA loop B is open to give access to the filter effect (GRX4 loop 4) for the regular bass.

 

In this example, the "real" bass gets cut off at the pass by the MIDI synthesizer.

 

This one expands upon the last by adding the analog filter to the synth.

ADA preamp - User-Variable levels of each of the following:

Distortion
Chorus
Compression
2 Effects Loops
Tube, Solid-State, or Variably Blended Preamp
Several Preamp Curves for Each Preamp
5-band Semi-parametric EQ
Gain & Output Settings