TC Electronic DB4 MKII User Manual
Page 24

Multiband 5.1
20
DB4 / DB8 MKII Algorithms
Release
Range: 20 ms to 7 sec.
Sets the time it takes for the Expander to release 
its attenuation of the signal when the signal ex-
ceeds the Threshold again.
Attack
Range: 0.3 to 100 ms
Sets the time it takes for the Expander to reach 
the attenuation specified by the Ratio param-
eter when the signal drops below the Threshold 
point.
Meter Zoom
Press Zoom to decrease meter range and have a 
more accurate metering.
Bypass Exp.
Press to bypass the Expander section of the MD 
5.1 algorithm.
Multiband 5.1 algorithm –
Expander – All LFE page
Multiband 5.1 algorithm – Expander – All LFE 
page
Pressing any parameter will assign this to Fader 
6.
“All” parameters
These parameters are equivalent to the “All” 
Threshold, Range, Ratio, Attack and Release 
parameters.
“LFE” parameters
These parameters are equivalent to the “LFE” 
Threshold, Range, Ratio, Attack and Release 
parameters.
Multiband 5.1 algorithm –
Expander – L M H page
Multiband 5.1 algorithm – Expander – L M H 
page
Pressing any parameter will assign this to Fader 
6.
This page holds all Expander Threshold, Range, 
Ratio, Attack and Release parameters for the Lo, 
Mid and Hi bands.
Multiband 5.1 algorithm –
Compressor – main page
Multiband 5.1 algorithm – Compressor – main 
page
Pressing Threshold, Range, Ratio, Attack and 
Release keys will immediately assign Lo, Mid, 
Hi, All and LFE values for these parameters to 
Faders 1 to 4. Be aware that the range of the All 
parameter is relative to the settings of the same 
parameters in the Expander section.
