Table of Contents
Advertisement
Tutorial
Bus Compressor Controls
THRESHOLD - Determines the level at which compression occurs. 31-position
stepped pot ranging from -20 to +20 dB.
ATTACK - Sets the attack time of the compressor (in milliseconds). 11-position
stepped pot ranging from .1 to 40 ms. The Bus+ features a number of Attack
time options never before seen on an SSL Bus Compressor, including 6, 15,
20 and 40 ms.
RATIO - Sets the ratio of the compressor. 11-position stepped pot ranging
from 1.3:1 to -0.5:1. The last three positions (-2.5, -1.5 and -0.5) are negative
ratios. A negative ratio is a setting whereby the output signal level is reduced
once it exceeds the threshold, to a level that goes below that of the threshold.
Negative ratios can be used to better control material that features extremely
loud signals or, they can be used for creative 'pumping' effects.
RELEASE - Sets the release time of the compressor (in seconds). 11-position stepped pot ranging from .05 to 1.2 seconds plus
two automatic release settings. For the first time on an SSL Bus Compressor, a fast release time of .05 (50 ms) is offered, as well
as a .15 s option. AUTO is the same automatic option as found on all other SSL Bus Compressor, suitable for complex material as
the release circuitry has a two-stage release (100 ms short, 12 seconds long). This means that louder elements of the signal are
released quickly and quieter elements more slowly. AUTO 2 (50 ms short, 6 seconds long), is a new option, providing a slightly
more 'active' automatic setting.
MAKE-UP - A gain make-up control allows for any changes to level introduced by compression to
be offset. Unity gain ('0') is marked in a white box on the front panel. The default range of the pot
is -10 to +20 dB, controlled via a 31-position stepped pot in 1 dB increments.
MAKE-UP [FINE] - A press and hold of the MAKE-UP control, allows for the control to work in
finer increments of 0.5 dB, with a range of -5 to +10 dB. The green LED below [FINE] lights to
indicate this mode is active.
POST D-EQ - By default, the signal process order of The Bus+ is Bus Compressor, followed by the
D-EQ circuit. A short press on the MAKE-UP control moves the Bus Compressor to be positioned
after the D-EQ. The green LED below POST D-EQ lights to indicate this mode is active.
Press and hold MAKE-UP to
activate FINE mode
10
Press MAKE-UP to
activate POST D-EQ
processing order
A single push for POST D-EQ
processing or press and hold
to put MAKE-UP into FINE
mode
THE BUS+ User Guide
Advertisement
Table of Contents
