Specifications

Processing Parameters

'GATE THRESHOLD' The gate function prevents 'suck-up' of noise during periods of silence or low level

audio. The level can be adjusted to turn on when the input drops to a level from -20dB to -40dB. The

gate can also be switched off or forced on. The gate when turned on will cause the gain reduction to

move towards the level set by the RTR LEVEL control and to move towards that level at the rate set by

the RTR speed control.

'RTR LEVEL' The return to rest level sets where the gain reduction will move towards under GATED con-

ditions. The RTR LEVEL can be set to -4dB, -8dB, -12dB, -16dB or -20dB. There is also an AUTO setting

which continuously modifies the RTR LEVEL based upon a rolling average of the last 30 seconds of gain

reduction prior to the GATED condition occurring.

'RTR SPEED' The return to rest speed modifies the attack and decay rates under GATED conditions.

The rate can be slowed down by factors of 1, 2, 4, 8, 16 and 32. This control can leave the rate unmodi-

fied (setting of 1) or slow it down to the point of being frozen (32)

'WINDOW GATING' A separate gating control from the silence gate, the window gate slows down the

attack and decay rates when the audio waveforms level has not moved outside of a pre-defined window,

set by the window gating control. The window can be set between 1 and 6dB or the gate function can be

disabled by setting the control to OFF. The window gating prevents unnecessary gain control when the

audio waveform is already well defined or having a low peak to average ratio. The window gating also

allows faster rates to be used without the audible effects normally associated with the faster rates.

The wideband AGC can be disabled by setting the RTR LEVEL to a fixed level, usually -12dB and setting

the 'GATE THRESHOLD' to ON. This creates unity gain through the AGC when the wideband AGC drive

control is set to 0 dB

The 'ENHANCE' menu contains the low frequency enhancement filters which are used to provide bass

enhancement and help overcome the bass reduction effect of multi-band compression.

‘DEEP BASS’ A 12dB/octave shelving bass equalizer that provides between 0 and 12dB of bass boost.

Use this control with caution as too much low frequency bass boost can cause loss of mid-bass because

the very low frequency bass, often inaudible on many receivers dominates the gain reduction of the

BAND 1 AGC and limiter. A setting of 6dB is a good compromise and starting point.

'BASS TUNE' Adjusts multiple points in the dynamics control system, allowing you to control the 'flavour'

of the bass.

‘PEAKING BASS EQUALIZER’ A pseudo parametric style bass equalizer control that allows you to

sweet tune the bass. Four frequencies, amplitudes and Q's are provided giving you 64 different bass

curves to select from. Frequencies selectable: 60Hz, 76Hz, 95Hz and 120Hz. Q's selectable: 0.4, 1, 2

and 4. Gains selectable: 0, 1.5dB, 3dB, 4.5dB, 6dB.

The 'XOVERS' in the DSPX are now adjustable and provide the user with another tool in creating their sonic

signature

'B1-2 XOVER' Sets the B1-2 Xover point to either 150Hz or 200Hz

'B2-3 XOVER' Sets the B2-3 Xover point to either 720Hz or 1000Hz

'B3-4 XOVER' Sets the B3-4 Xover point to either 4000Hz or 6000Hz

'B4 LPF' Sets the B4 LPF to either 15000Hz or 20000Hz

The 'MULTI-BAND AGC' is designed to re-equalize the program material and create a consistent tonal bal-

ance while maintaining a consistent output level based on the RMS level of the program material.

'B1-4'

'DRIVE' Controls the drive into the AGC. 0 dB drive corresponds to a gain reduction of 12dB, the

midway point. The drive can be increased or decreased by up to 12dB. You may need to increase the

drive a little as you go up through the bands to compensate for the fact that music has less energy in

the higher frequency spectrum compared to low frequencies.