Mode Selector; Q108 Controls - REL Acoustics Q Series Operating Instructions Manual

MODE SELECTOR

POSITION
1
2
3
4
The mode switch is a dual function control, it can reverse the phase for both high level and low level
inputs and it can bypass the internal filter/roll off.
Phase reversal is rarely needed but can be useful as explained in "SETTING UP" .
MODE SWITCH. Used to set phase* and to bypass crossover for Low Level input**.
Position 1 / Line: 0 degrees phase, crossover engaged low level input
Position 2 / LFE: 0 degrees phase, crossover bypassed for low level input
Position 3 / Line: 180 degrees phase, crossover engaged for low level input
Position 4 / LFE: 180 degrees phase, crossover bypassed for low level input
*PHASE SELECTION AFFECTS BOTH HI AND LO LEVEL INPUTS.
**Crossover is always engaged for Hi level input regardless of mode switch position,
bypassing is only possible for the low level input.

Q108 CONTROLS

On the Q108, US model, the MODE SWITCH has been replaced with two separate controls namely
phase and LFE XOVER.
The PHASE switch has two positions, 0 and 180 degrees.
The LFE XOVER switch is marked IN/OUT. At its IN position the CROSSOVER control is active. At
its OUT position the CROSSOVER control is bypassed. This means that the Q108 will reproduce the
full range of the LFE/SUB output of the amplifier/processor, or the limit can be set on the processor if
it has this facility.
The CROSSOVER is always active for the HI LEVEL input.
Other controls are the same as for Quake.
(NOT APPLICABLE TO Q108)
SOURCE
LINE
LFE
LINE
LFE
15
REL Acoustics 'Q' range User manual
PHASE
0
0
180 DEG
180 DEG