User Manual

TRIMODE DRIVE AND LEVEL CONTROLS

Think of the Trimode as a two channel ampliﬁer. There are two

input drive controls and two output levels that work very much

like the preamp and power-amp stages of a guitar amp. On

the Trimode, this is supplemented with a 3 position overall drive

range control that allows you to set the input level from the guitar

from slight overdrive, to moderate or full on distortion.

The LOW position is great for replicating the sound of older

amps that do not have a master volume for those ‘clean’ but

slightly crackling tones from the early days of rock & roll. The

MED (medium position) lets you get into the crunchy rhythm

tones and bluesy lead tones and truly shines when used in

conjunction with the volume control on your guitar for added

dynamics. The HIGH position gives you maximum saturation

for metal and power.

Start by setting the Trimode to the MED position as this will give

you the most range. With channel-1 drive at 9 o’clock and the

channel-2 drive at 3 o’clock, you will immediately get a sense

of how these can be set to work together. Then set your rhythm

and lead channel output levels to suit.

For added control, we have introduced an intermediate drive

on the rhythm channel that is factory set at 12 o’clock. This

control lets you ﬁne-tune the amount of distortion produced

by the rhythm channel-1. It is accessed through a small hole

on the side of the Trimode. Use a small “tweaker” screwdriver

to adjust the intermediate drive gain of channel-1. This control

is factory set at 50%. Turn the control counter-clockwise for a

“cleaner” rhythm channel-1. Turn the control clockwise for more

distortion.

Note: If you ﬁnd you are consistently placing the DRIVE-

1 control at the 1 o’clock position or higher, consider

increasing the channel-1 INTERMEDIATE DRIVE by

turning it clockwise. This will increase the range of

DRIVE-1 control by allowing you to set it at a lower

position. If you ﬁnd that rhythm channel-1 is not quite

clean enough even with the DRIVE-1 control set low,

consider decreasing the channel-1 INTERMEDIATE

DRIVE control by turning it counter-clockwise.

True to the Music

Radial Engineering

Classic Trimode