GigRig More Or Less Manual

Table of Contents

Contents

1 Introduction
2 Connections
3 Using MORE OR LESS with an Expression Pedal
4 Using More or Less with CV
5 Settings
6 Expression Pedal Curves
7 Expression Curve Switches
8 Signal Chain Examples
9 FAQs
10 Technical Specifications
11 Documents / Resources
- 11.1 Download manual

Introduction

The GigRig More Or Less is a remote amplitude control module that allows an expression pedal to function as a volume control, boost, under-driver, or active splitter. It can be controlled via CV messages and is internally balanced for high audio quality. With internal isolation and a ±18V power supply, it provides significant headroom. Dip switches allow for adjustment of the response curve to match different expression pedals.

Connections

Connections - Step 1

SIGNAL INPUT: Plug your guitar or audio source in here.

MAIN OUTPUT: The main effected output.

AUX OUTPUT: This output is a direct split from the input.

EXP/CV INPUT: Plug your expression pedal in here to use as a volume control. You can use this input to connect a Control Voltage. You use this connection for the TheGigRig FSL Remote Footswitch that simply flip/flops between the heel and toe values.

POWER: Plug your 9V DC power in here. MORE OR LESS will operate on anything from 9 to 30V DC.

PLEASE NOTE, using a supply higher that 9V will not give any more headroom.
Connections - Step 2

Using MORE OR LESS with an Expression Pedal

When used with an expression pedal, the More Or Less functions as a remote volume control. Since there's no audio in the TRS cable connection between the expression pedal and the More Or Less, long TRS cables can be used without any risk of signal degradation. It can also be placed in your amp's effects loop, allowing remote control over your amp's volume. The expression pedal must have its wiper connected to the RING of the TRS connector. Compatible pedals include TheGigRig TGR1, Dunlop DVP4/5, DOD Mini Exp, and MOOG EP-3.

Using More or Less with CV

The More Or Less operates with a unipolar CV signal ranging from +1V to +5V. It responds inversely, meaning 1V results in maximum boost, while 5V results in maximum cut. When in CV mode, the trimmer pot on the top of the More Or Less is disabled.

To enable CV mode
Using More or Less with CV

Settings

HEEL AND TOE

The Heel and Toe values of More Or Less enable you to set up your expression pedal to work as either a standard volume pedal, a boost, an underdrive.

LED INDICATOR

As you sweep through the volume range with your expression pedal, the LED indicator will let you know if you are boosting, attenuating or at unity.

Expression Pedal Curves

On the base of the More Or Less circuit board (accessible by undoing the screws on the bottom of More Or Less) are a pair of switches giving you access to different expression pedal curves.

Depending on the expression pedal you use, you may want a different sweep.

More Or Less' default setting is both internal curve switches in the OFF position.

Expression Curve Switches

Exp Curve Switches

OFF/OFF - WHITE CURVE (Standard)

OFF/ON - GREEN CURVE

ON/OFF - RED CURVE

ON/ON – BLUE CURVE

CONTROL VOLTAGE
More Or Less can receive a Control Voltage (CV) signal to adjust the level remotely. This allows for creative applications, such as using a sequenced CV to achieve programmed tremolo effects. To enable CV control, make sure the CV switch on the right is set to the ON position.

Signal Chain Examples

FIRST IN SIGNAL CHAIN
If More or Less is placed first in the chain it acts as a master input gain control. Depending how you have it set, it will boost or reduce the input level to your effects.
AFTER GAIN STAGES, BEFORE DELAY
Set up like this, More Or Less will act as a master volume control for gain stages so will not change the tone of your overdrives, but will control the input level into your time based effects, delays, reverbs.
END OF SIGNAL CHAIN
If placed at the end of the signal chain, More Or Less becomes a master volume for the entire signal chain.

FAQs

Can I use any expression pedal?
As long as the expression pedal is 10K and the centre pin of the potentiometer (wiper) is connected to the RING of the TRS cable. Expression pedals that do this out of the box include TheGigRig TGR1, Dunlop DVP4/5, DOD Mini Exp, MOOG EP-3.

Is it buffered?
Yes, More Or Less is buffered – high input impedance (680KΩ), low output impedance (100Ω).

What's the best way to attach More Or Less to my pedalboard?
We recommended using pedalboard tape to attach More Or Less to a Loop Velcro or a dry flat surface.

Is there any benefit to using a higher voltage for more headroom?
No, voltages are fixed internally @ +/- 18Vdc. Using a higher voltage to power More Or Less will simply reduce the current needed without changing the headroom.

How do I bypass More Or Less?
Simply unplug the TRS cable from the EXP input and More Or Less will be a high quality unity gain buffer.

Can I change the curve of my expression pedal?
Yes, via the EXP Curve switches on the bottom of the circuit board.
To access the bottom of the PCB simply loosen the in/out sockets and undo the screws on the side of the unit.