Lexicon 284 - Manual (Page 11)

Signature 284 User Guide
7
The Effects Loop is instrument level (-20dB instrument level) to allow use of
stomp boxes or studio gear in the loop.
The sends both carry the same signal (“y” cord from the preamp out). The returns
are wired for stereo, mono, or parallel (split) operation:
STEREO For use with a single stereo effects processor or two mono effects
processors (one on the left and the other on the right). Audio from
two separate jacks can be routed independently to the left and right
power amps via the left and right returns.
MONO For use with a mono effects processor feeding both left and right
power amps. Audio from a single jack can be sent to both power
amps at the same time. (Use the LEFT return only.)
SPLIT For use with a mono effects processor inserted in the right power
amp and no effects in the left power amp.Audio from a single jack
can be sent to the right while the left receives its signal directly from
the preamp. (Use the RIGHT return only.)
In recording situations where you are tracking with effects, be sure to listen with
the effects in the loop. There’s a big sonic difference between inserting effects
like delay, chorus, flange, reverb etc. in the effects loop of a guitar amp and
adding them at the console. When inserted in the loop, the amp/speaker (or
speaker simulators) add warmth, compression and some harmonic enhance-
ment to the effects.
When using effects in the loop of any amp, it is very important to match the levels
properly. A level mismatch can have a negative effect on the amps overall tone.
As the Signature 284 is a stereo amp, you can match effects loop levels
accurately by ear. Here’s how:
Effects Loop
Loop vs. Mixer Bus
for Effects
Level Matching
Rear Panel Connections
Connect ONLY THE RIGHT SIDE
of the Effects Loop to set
and match levels.
Once levels are set and matched,
connect the left side of the loop.
1. Turn both the input and output of the effect all the way down and bypass the
effect.
2. Connect the right send of the Signature 284 to the mono (or right) input of the
effect.