154 HD96-24-CC-TP User Manual
Dynamics:
LEVELLING AMPLIFIER HD - 2A
The pure tube signal path is recreated in HD-2A Levelling Amplier. The ultra-smooth optical attenuator is closely modelled on our LA style compressor. It provides
breathing, natural and eortlessly musical compression. Inspired by the original LA-2A.
The Comp/Limit switch determines whether the eect acts as a compressor or a limiter. The Limit setting uses a much higher compression ratio. Gain aects the input
level of the signal and controls the threshold at which compression takes place. Power On toggles the eect in or out of the signal path. Increasing Peak Reduction
means that signal peaks are compressed more. Mix allows parallel compression to be used. The Gain Reduction control changes how Gain Reduction metering
information is displayed.
TIP- The HD-2A can be used to smash (heavily compress) a drum group but allow the dry transients of the uncompressed signal to be mixed back in giving a huge drum
sound. Set the Mix dial to around 50% and experiment.
Item Control Function
1 Limit/Compress switch
Sets the compression ratio of the leveller. When set to Compress, the compression ratio is
approximately 3:1 and when set to Limit, the ratio is around ∞:1.
2 Gain control
The Gain knob increases the output level to compensate for the reduced signal level that results
from compression.
3 VU Meter
A VU meter that displays either the amount of gain reduction, or output level, depending upon the
setting of the Meter Function switch.
4 Peak Reduction control
This control sets the amount of signal compression by adjusting the trigger threshold. Increasing the
value lowers the threshold, and therefore increases the amount of compression.
5 Mix control
Dry/wet mix. Allows Parallel compression, a form of upward compression, is achieved by mixing an
unprocessed 'dry' signal with a heavily compressed version of the same signal.
6 Metering Selection switch
This rotary control sets the mode of the VU Meter. When set to Gain Reduction, the VU Meter
indicates the Gain Reduction level in dB. When set to +10 or +4, the VU Meter indicates the output
level in dB.
7 Power switch On/O control for the compressor.