Dynamics Toolbox Technical Specification
Physical
Size : 19" wide by 2RU (3.5") high by 255mm (10") deep (excluding cable connectors)
Weight : 4kg (9lbs)
Power requirements : AC power to the voltage indicated on the rear panel ±10%, 50/60 Hz. Internally switchable between 115V and 230/240V operation.
Mains Cord Fuse (UK only): 3A
Rear Panel Fuse : 20mm fuse, 500mA (115V operation), 310mA (230/240V operation)
Power Consumption : 20W
Connectors
IEC Power Socket
All audio connectors are balanced 1/4" jacks which may be use balanced or unbalanced.
Main processor audio path
Frequency response : -0.5dB points at 15Hz and 70kHz (additional zoidal network across secondary of optional output transformers)
Distortion : < 0.01% at 1kHz (typically 0.007%) main signal path working at 0dBu.
Maximum input level
Line input : +24dBu
Input impedance
Line input : > 10k ohms
Output Noise
-90dBu RMS unweighted, measured 22Hz to 22kHz
-92dBu RMS A-weighted, measured 22Hz to 22kHz
Maximum Output Level (post limiter)
> +27dBu
Output Gain (post limiter)
±15dB, with centre detent line-up position
Output impedance
50 ohms
Compressor
Threshold range : 18dBu to -30dBu
Attack Time ('peakride'): 60ms to 1ms
Attack Time ('dynamic tracking'): 60ms to 1ms but with faster transient responses
Release Time ('peakride'): auto release, programme related from 90ms to 500ms
Release Time ('dynamic tracking'): variable from 75ms to 4s plus switchable auto release which is programme related from 100ms to 1.5s
Ratio 1:1 to INF:1
Make-up gain (pre limiter): variable from 0 to +20dB (when compressor in circuit)
Gain reduction meter: calibrated in dB.
Variable Threshold Limiter
Threshold range: +6dBu to +24dBu
Attack time: 100us
Release Time: programme related from 100ms to 500ms
Sidechain EQ
Hi pass filter : 20Hz to 2.5kz, 12dB per octave
Lo pass filer : 1.3kHz to 15kHz, 12dB per octave
Blend Function ('New York' compression)
Blends output signal between unprocessed (dry) and processed (wet) audio
Metering
Switchable between audio input, audio output and gain reduction.
0VU switchable between +6dBu and +18dBu
Bypass function
Relay switching of audio input jacks to audio output jacks bypassing all unit electronics. Auto-bypass when power is off.
P1 Audio Processor Technical Specification
Physical
Size : 223mm wide by 44mm high (1U) by 225mm deep (excluding cable connectors)
Weight : 1.8kg (4lbs)
Power requirements : AC power to the voltage indicated on the rear panel ±10%, 50/60 Hz.
Mains Cord Fuse (UK only): 3A
Rear Panel Fuse : 20mm fuse, 250mA 250V
Power Consumption : 15W
Main processor audio path
Frequency response : -0.5dB points at 15Hz and 55kHz
Distortion : < 0.01% at 1kHz (typically 0.008%) main signal path working at 0dBu, limiter always in circuit.
Maximum input levels
Microphone : +11dBu
Line input : +21dBu
Instrument : +11dBu
Input impedances
Microphone : 2k4 ohms
Line input : > 10k ohms
Instrument : 1M ohms
Equivalent input noise figures
Microphone : 128dB (max gain with 150 ohms source)
Line input : 100dB (unity gain)
Instrument: 105dB (max gain)
Output Noise :
-93dBu RMS unweighted, measured 22Hz to 22kHz
-95dBu RMS A-weighted, measured 22Hz to 22kHz
Maximum Output Level (post limiter)
> +21dBu
Output impedance
50 ohms
Input Gain Ranges
Microphone input : 0dB to +70dB
Line input : -10dB to +20dB
Instrument input : 0dB to 30dB
Expander
Threshold range : -60dB to 0dB
Attack time : typically 3ms
Release time : variable between 90ms and 900ms (tracks the natural audio decay)
Ratio 1:3 with a small degree of ‘soft knee’ at the threshold point
Peakride Compressor
Threshold range : 0dB to -40dB
Attack time range : 60ms to 1ms
Release time : variable from 90ms to 500ms (tracks the natural audio decay).
Ratio 1:1 to INF:1
Make-up gain : automatically set in proportion to the threshold and ratio settings.
Gain reduction meter : calibrated in dBs.
Dynamic Threshold Control Limiter
Threshold : fixed internally to +7dBu
Attack time : fastest 'natural' is 5ms augmented by the 'look ahead' dynamic threshold control.
Ability to control peak level : will control overshoot to within 0.5dB for a very fast rise time waveform (30us) set for 6dB of overload.
Monitor Output
For highest quality monitoring use headphones with an impedance of 600 ohms or above. Use of low impedance headphones is possible but expect reduced audio quality.
