POWER STATUS LED
LED indicates power status.
PROCESS ENGAGE
Illuminated push-button that engages the Primary Source Enhancer’s effect.
PROCESS ACTIVE
This LED indicates when the 545 is actively affecting signal – a.k.a. when the input signal has overcome the enhancement threshold. Since this LED should generally be illuminated when the desired source is present (a vocalist singing, for example) it is extremely helpful in setting up the 545 for use.
THRESHOLD
Sets the dBu level at which the Primary Source Enhancer engages.
DEPTH
The DEPTH knob controls the maximum amount of effect from the 545 – or in other words, how much attenuation is applied after the input signal falls below the set THRESHOLD. By rotating the DEPTH control clockwise from 0dB towards -20dB, the 545 will attenuate the input signal more dramatically, letting the user find the perfect balance between audibility of the Primary Source Enhancement effect and feedback reduction.
FAST
The FAST control is an illuminated push-button that selects between two available time constants, tuning the 545’s response by determining how quickly the attenuation occurs in the quiet sections between words or phrases. Without this button pressed, the 545 achieves a slower attack and release that is useful as a starting point for most sources. Pressing the FAST push-button engages the faster attack and release time constant, useful on more dynamic sources or passages where faster transient detection is necessary.
PEAK
Illuminated push-button that selects between RMS and Peak detection modes. When illuminated, the 545 is in PEAK mode – useful for detecting faster transient peaks, and for creative dynamic envelope shaping. When not illuminated, the 545 is in RMS mode, which utilizes a slower, more averaged response characteristic in the sidechain.
MAXIMUM INPUT AND OUTPUT LEVEL
+24 dBu
TOTAL HARMONIC DISTORTION AND NOISE
1 kHz, +20 dBu Output Level, no load: Better than 0.001%
20 Hz, +20 dBu Output Level, no load: 0.1% typical (2nd and 3rd Harmonic)
NOISE
Un-weighted, 22 Hz - 22 kHz, 40 Ohm balanced source. Noise specifications may vary depending on which 500 series chassis is being used, and / or interference from stray magnetic fields.
Primary Source Enhancer Bypassed: Better than -100 dBu
FREQUENCY RESPONSE
30 ft. Cable on Main Output.
30 Hz to 58 kHz: +/- 0.25 dB
18.5 Hz: -3 dB
THRESHOLD
Continuously variable from -18 dBu to +12 dBu
DEPTH
Continuously variable from 0 dB to -20 dB
TIME CONSTANTS
RMS MODE
Attack & Release, Slow (FAST push-button OUT): 100 mS
Attack & Release, Fast (FAST push-button IN): 200 mS
PEAK MODE
Attack (fixed): 20 mS
Release, Slow (FAST push-button OUT): 1 S
Release, Fast (FAST push-button IN): 200 mS
POWER CONSUMPTION
+/-16 VDC @ 80 mA
UNIT DIMENSIONS
1x 500 Series Module: 1.5” W x 5.9” D x 5.25” H
(3.8 cm W x 15 cm D x 13.3 cm H)
UNIT WEIGHT
1.5 lbs. (0.7 kg)
SHIPPING DIMENSIONS
10” W x 8” D x 3” H
(25.4 cm W x 20.3 cm D x 7.6 cm H)
SHIPPING WEIGHT
3 lbs. (1.4 kg)
