User manual
4REA4 Controller Software User Guide 
90 
V1.30 
17. Processing specs 
Input Processing 
Compressor 
128 Input 
Processing 
Channels 
Configurable mono or stereo 
Sidechain 
Self key + any source 
selectable, In/Out, Sel 'listen' 
Sidechain Lo-Cut 
Filter 
12dB/octave, Freq 20Hz – 
5kHz 
Trim 
+/-24dB digital trim 
Sidechain Hi-Cut 
Filter 
12dB/octave, Freq 120Hz – 
20kHz 
Polarity 
Normal/Reverse 
Threshold 
-46dBu to 18dBu 
Stereo Width 
Control 
L/R, R/L, L -Pol/R, R -Pol/L, 
Mono, L/L, R,R, M/S 
Compressor 
parameters 
Thresh, Ratio, Attack, 
Release, Knee 
High Pass Filter 
12dB/18/24dB octave 20Hz 
– 2kHz, switchable in/out 
Type 
Manual Peak 
Low Pass Filter 
12dB octave 50Hz – 20kHz, 
switchable in/out 
Channel Direct 
Out 
Individual Trim (per channel) 
Insert 
Assign to any sockets, In/Out 
Options 
Source, follow Fader, follow 
Mute (global for all) 
2 insert points per channel: 
Post Gate, Pre-Delay 
Source points globally 
selectable 
Delay 
Up to 340ms, in/out control 
Gate 
Mix Processing 
Sidechain 
Self-key + any source 
selectable,  In/Out, Sel 
'listen' 
48 Mix Processing 
Channels + 4 x 
Stereo Area Outs 
Configure as mono/stereo 
Groups, Aux, Matrix 
Sidechain Lo-Cut 
Filter 
12dB/octave, Freq 20Hz – 
5kHz 
Mix mode 
LR 
Sidechain Hi-Cut 
Filter 
12dB/octave, Freq 120Hz – 
20kHz 
External Input to 
Mix 
Assignable source 
Threshold 
-72dBu to +12dBu 
Trim 
+/-24dB digital trim 
Depth 
0 to 60 dB 
Polarity 
Normal/Reverse 
Attack 
50us to 300ms 
Insert 
Assign to any sockets, In/Out 
Hold 
10ms to 5s 
1 insert point per channel: 
Pre-EQ 
Release 
10ms to 1s 
GEQ 
28 bands 31Hz -16kHz, +/-
12dB 
Type 
Constant-Q 
EQ 
Gain 
Frequencies displayed on 
LCD strip 
Type 
4-Band fully parametric, +/-
15dB 
EQ 
as input channel 
Frequency Range 
Global setting for Inputs = 
20-20kHz or 'Analogue 
setup' 
Compressor 
as input channel 
Analogue Range 
setup 
20-200Hz, 35-1kHz, 500-
15kHz, 2k-20kHz 
Delay  
Up to 680ms, in/out 
Band 1 
Selectable LF Shelving, Bell, 
Hi-Pass 
Band 2 
Bell 










