SHELFORD 5051
Inductor EQ / Compressor
FEATURES
HIGH FREQUENCY SHELF / PEAK
Selectable at 8 and 16kHz. With continuous gain from -15 to +15 dB. Selectable Peak or Shelf curves.
LINE SELECT
Selects been Line 1 and Line 2 inputs.
MID PARAMETRIC
Selectable at 200, 350, 700, 1.5K, 3K, and 6kHz. With continuous gain from -15 to +15 dB. Selectable Hi Q.
EQ PRE / POST
When engaged, moves the EQ after the compressor.
HPF
Cycles between bypassed, HPF at 60Hz, and HPF at 120Hz.
LOW FREQUENCY EQ
Selectable at 30, 60, 100, and 220Hz. Continuous gain from -15 to +15 dB. Selectable Peak or Shelf curves.
LEVEL & GAIN REDUCTION METERS
8-segment LED meters for monitoring Gain Reduction and Output Level.
MAKE-UP GAIN
Applies post-compressor make-up gain.
RELEASE TIME
Changes the time taken for the gain to return to 0 after the compressor disengages.
SC HPF
Applies a high-pass filter at 250Hz to the VCA side chain signal.
LINK
Links the 5051 VCA to a 2nd 5051 module, if connected.
ATTACK TIME
Changes the time delay before compression begins.
RATIO
Changes the amount of gain reduction above the set threshold level.
FF/FB
When engaged, changes the VCA detection from feed-forward to feed-back.
COMP IN
Engages the Compressor.
THRESHOLD
Sets the level at which compression begins.
Spec.
LINE IN
FREQUENCY RESPONSE
Main Output, no load.
-3 dB @ 2.5 Hz
-3 dB @ 125 kHz
NOISE
Measured at Main Output, unweighted, 22 Hz - 22 kHz.
Terminated 40 Ohm, With gain at unity: better than -102 dBu
MAXIMUM INPUT
20 Hz to 20 kHz: +25 dBu
MAXIMUM OUTPUT
20 Hz to 20 kHz: +25 dBu
TOTAL HARMONIC DISTORTION AND NOISE
From <10 Hz to 80 kHz.
@ 1kHz, +20 dBu output: Better than 0.002%
@ 20Hz, +20 dBu out: Better than 0.120%
@ 20kHz, +20 dBu out: Better than 0.010%
EQUALIZER
NOISE
Measured at Main Output, unweighted, 22 Hz-22 kHz. Terminated 40 Ohm with all gains set at 0.
Better than -92 dBu
MAXIMUM INPUT
20 Hz to 20 kH: +24.5 dBu
MAXIMUM OUTPUT
20 Hz to 20 kHz: +24.5 dBu
TOTAL HARMONIC DISTORTION AND NOISE
From <10 Hz to 80 kHz.
@ 1kHz, +20 dBu output: Better than 0.007%
@ 20Hz, +20 dBu out: Better than 0.120%
@ 20kHz, +20 dBu out: Better than 0.070%
THE COMPRESSOR
Threshold at +20 dB, Ratio at 1.1:1, Gain at 0.
NOISE
Measured at Main Output, unweighted, 22Hz - 22kHz. Terminated 40 Ohm.
Better than -92 dBu
MAXIMUM INPUT
20 Hz to 20 kHz: +25 dBu
MAXIMUM OUTPUT
20 Hz to 20 kHz: +25 dBu
TOTAL HARMONIC DISTORTION AND NOISE
From <10 Hz to 80 kHz.
@ 1 kHz, +20 dBu output: Better than 0.020%
@ 20 Hz, +20 dBu output: Better than 0.140%
@ 20 kHz, +20 dBu output: Better than 0.070%
THRESHOLD
Continuously Variable from -30 dBu to +20 dBu
RATIO
Continuously Variable from 1.1:1 to 40:1
GAIN
Continuously Variable from -6 dB to +20 dB
ATTACK
Continuously Variable from 20mS to 75mS
RELEASE
Continuously Variable from 100mS to 2.5 Seconds