The Behringer Composer Pro has become the industry standard compressor for numerous applications. Today, you'll find stacks of Composer Pros in the racks of professional touring companies as well as in leading studios the world over. Now there's a device that combines the Composer's famous interactive concept with modern tube technology: the Tube Composer T1952.
Features
Interactive Tube version of "industry standard" compressor-expander-gate
Fully automatic and manual compression, expander/gate, clipper, and program limiter functions
Innovative Interactive Knee Adaption circuit gives you the best of Hard- and Soft-Knee compression in a single dynamic process
Patented "Ultra-Tube" circuitry warms up your signal without bringing in unwanted noise, hum, or hiss
"Warmth" control lets you dial in as much tube sound as your want
Tube Composer features Sovtek tubes, large backlit analog VU meters and a "Retro" design with polished chrome front panel and vintage look
Interactive Ratio Control Expander/Gate lets you make incredibly "natural" fades to silence and eliminates "chattering"
Dual-action Interactive Gain Control Peak Limiter circuit provides both instantaneous "brickwall" limiting and reduces overall output level to avoid distortion
"Intelligent" Auto and Manual Attack and Release compression
Switchable true Stereo or Dual Mono operation and switchable +4 dBu/-10 dBv operating levels for the widest variety of applications
Servo-balanced XLR and TRS inputs and outputs
Special relay-controlled hard bypass prevents accidental "thumps in the night" in case of accidental power-down
Technical Info
Audio Input
Connectors: XLR and 1/4 in. TRS jack
Type: RF filtered, servo-balanced input
Impedance: 50 kOhm balanced, 25 kOhm unbalanced
Nominal Operating Level: +4 dBu/-10 dBV switchable
Max. Input Level: +21 dBu balanced and unbalanced
CMRR: typ. 40 dB, >55dB @ 1 kHz
Audio Output
Connectors: XLR and 1/4 in. TRS jack
Type: electronically servo-balanced output stage
(optional transformer-balanced)
Impedance: 60 Ohms balanced, 30 Ohm unbalanced
Max. Output Level: +21 dBu, +20 dBm balanced and unbalanced
SC Input
Connector: 1/4 in. TRS jack
Type: RF filtered, DC de-coupled, unbalanced input
Impedance: >10 kOhm
Max. Input Level: +21 dBu
SC Output
Connector: 1/4 in. TRS jack
Type: RF filtered, DC de-coupled, unbalanced output
Impedance: 2 kOhm
Max. Output Level: +21 dBu
System Specifications
Bandwidth: 18 Hz to 30 kHz, +/- 3 dB
Signal-to-noise ratio: > 100 dB, unweighted, 22 Hz to 22 kHz
THD: 0.008 % typ. @ +4 dBu, 1 kHz, Gain 1
0.04 % typ. @ +20 dBu, 1 kHz, Gain 1
IMD: 0.01 % typ. SMPTE
Crosstalk: < -100 dB, 22 Hz to 22 kHz
Stereo Coupling: true RMS detection
Expander/Gate Section
Type: IRC (Interactive Ratio Control) Expander
Threshold: variable (OFF to +15 dB)
Ratio: variable (1:1 to 1:8)
Attack: < 1 ms/50 dB, program dependent
Release: variable (SLOW: 100 ms/1 dB, FAST: 100 ms/100 dB)
Compressor Section
Type: IKA (Interactive Knee Adaption) Compressor
Threshold: variable (-40 dB to +20 dB)
Ratio: variable (1:1 to oo:1)
Threshold characteristics: variable (Interactive or Hard Knee)
Auto characteristics: Wave Adaptive Compressor
Manual Attack Time: variable (0.5 ms/20 dB to 100 ms/20 dB)
Manual Release Time: variable (0.05 ms/20 dB to 5 s/20 dB)
Auto Attack Time: typ. 15 ms at 10 dB, 5 ms at 20 dB, 3 ms at 30 dB
Auto Release Time: program dependent, typ. 125 dB/s
Output: variable (-20 to +20 dB)
Peak Limiter Section
Type: IGC (Interactive Gain Control) Peak Limiter
Threshold: variable (+4dB to OFF (+22dBu))
Ratio: oo:1
Stage 1 Limiter Type: Clipper
Attack: "zero"
Release: "zero"
Stage 2 Limiter Type: program Limiter
Attack program: dependent, typ. < 5 ms
Release program: dependent, typ. 20 dB/s
Function Switches
SC Extern: switches the detector section to the external SC input
SC Mon: monitoring the external SC input, disengaging the normal audio
Interactive: enables the "Interactive Knee Adaptation" characteristics
Contour: allows for frequency dependent detection
Auto: enables the automatic and program dependent setting of the Attack-/release times, disengaging the manual Attack-/Release controls
I/O Meter: switches between input and output for the Level Meter
In/Out: relay-controlled hard-bypass
Operating Level: changes the internal reference level from +4 dBu to ?10 dBV
CH 1 Master: linking both channels for stereo operation. Channel 1 becomes master
Warmth: variable (+10 dB to +60 dB)
Indicators
Expander/Gate Threshold: 2 LED for under "+" and above "-"
Compressor Threshold: 3 LEDs for under "+," Interactive in0lr and above "+"
Peak Limiter Threshold: 1 LED for Indication of Limiter function
Function switch: LED indicator for each
Warmth: analog meter for the UTC circuitry
Options
Output Transformer: Behringer transformer OT-1 retrofittable
Power Supply
Mains Voltage: USA/Canada ~ 120 V AC, 60 Hz
Fuse: 100-120 V AC: 1 A (slow-blow)
Power Consumption: 25 Watts
Mains Connection: standard IEC receptacle
Physical
Dimension (H x W x D): approximately 3-1/2 x 19 x 8-1/2 in. (89.5 x 482.6 x 217 mm)
Net Weight: approximately 8.0 kg
Shipping Weight: approximately 10.0 kg
Call for 4 equal payments on most orders over $395. Installment plans available only by phone. 
