A 500 module compressor/limiter based on the traditional 160A. Of course, it also has OverEasy/Hard Knee characteristics switching. It is a traditional compressor that allows for an extremely wide range of parameter settings and can be used in any situation.

■Compressor/Limiter API500 module

dbx 560A is a VCA based compressor. Like the dbx 160A, it has OverEasy and Hard Knee curves. Extremely wide thresholds, ratio and output controls, and RMS level detection provide natural-sounding dynamics processing that adds punch to drum, bass, and vocal sounds.

■Main features

・OverEasy or hard knee compression with dbx supersonic program attack and release times

・Compression ratio: 1:1 to infinity:1 to -1:1

- Accurate RMS gain reduction and input/output meter display with calibration control for various operating levels

・RMS level detection

・Compression using Exclusive Infinity + negative ratio

■Specifications

Input type: Balanced/Unbalanced, RF filtering

Input impedance: 40 kΩ balanced, 20 kΩ unbalanced

Maximum input level: +22dBu

CMRR: >40dB; typically >55dB at 1kHz

Output type: Balanced/Unbalanced, RF filtering

Output impedance: Balanced 30Ω, unbalanced 15Ω

Maximum output level: +22dBu

Frequency response: 20Hz to 20kHz, +0/-0.5dB, 0.5Hz to 100kHz, +0/-3dB

Noise: <-97 dBu, unweighted (22 Hz to 22 kHz)

THD + Noise: <0.005% typ, 1kHz input at 0dBu, <0.07% (typical), arbitrary amount of compression up to 40dB at 1kHz

Dynamic range: >119dB

Compression gain adjustment range: -20dB to +20dB variable

Compressor threshold range: -40dBu to +20dBu

Compressor threshold characteristics: selectable OverEasy or Hard Knee

Compressor ratio: variable 1:1~∞:1~1:1; maximum compression ratio 60dB

Attack time: program dependent; typically 15ms at 10dB, 5ms at 20dB, 3ms at 30dB

Release time: program dependent; typically 8ms at 1dB, 80ms at 10dB, 400ms at 50dB, 125dB/s rate

Power requirements: +/- 16VDC

Power draw: 1.92 watts

Rack system compatibility: 500 series compatible power frame

Rack space: 1 slot

Dimensions (H x W x D): 13.34cm x 3.81cm x 15.24cm

Weight: 0.59 kg