Compressor/Gate DBX266XSV

INPUT (Balanced or Unbalanced):
Impedance: > 40kOhm
Max Level: +22dBu
OUTPUT (Impedance Balanced):
Impedance: +4dBu: Balanced: 100?
          Unbalanced: 50Ohm
-10dBu: Balanced: 1kOhm
          Unbalanced: 500Ohm
Max Level: > +21dBu, > +18dBm (into 600Ohm)        
SIDECHAIN INSERT:
Input Impedance: >10kOhm
Output Impedance: 2kOhm
Max Input Level: +22dBu
Max Output Level: >+20dBu
FREQUENCY RESPONSE:
Flat: 20Hz - 20kHz, +0, -0.5dB
Bandwidth: 0.35Hz - 90kHz, +0, -3dB
SYSTEM PERFORMANCE:
Distortion + Noise: <0.2%; any amount of compression at 1kHz
Intermodulation Distortion: <0.2% SMPTE
Noise: <-93dB, unweighted (22kHz measurement bandwidth)
Dynamic Range: >114dB, unweighted
Interchannel Crosstalk: <-95dB, 20Hz to 20kHz
Common Mode Rejection: >40dB, typically >55dB @ 1kHz
Stereo Coupling: True RMS Power Summing™
THRESHOLD:
Compressor: OverEasy® or hard-knee; -40dBu to +20dBu
Expander/Gate: -60dBu to +10dBu
RATIO:
Compressor: 1:1 to Infinity:1
Expander/Gate: 1:1 to 4:1
ATTACK Time:
Compressor: Scalable Program-Dependent AutoDynamic™
Expander/Gate: <100µSec
RELEASE Time:
Compressor: Scalable Program-Dependent AutoDynamic™
Expander/Gate: Program-Dependent
Power Supply:
Operating Voltage: 100VAC -120VAC 50/60Hz
Power Consumption: 15 Watts
Operating Temperature: 32°F to 113°F (0°C to 45°C)

MADE IN CHINA

Here you find 26 models, 25 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from dbx Inc.; Waltham (MA)