MDX1400

Technical Specifications

Version 1.1 May 2000

AUTOCOM PRO

www.behringer.com

ENGLISH
Interactive 2-channel expander/gate/compressor/enhancer of the reference class
s IKA (Interactive Knee Adaptation) compressor concept combines the advantages of hard knee and soft knee characteristics
s Attack and Release times controllable automatically or manually
s Switchable high-pass filter in control signal path avoids low-frequency signals from dominating compressor action
s Compression characteristics switchable between IKA and hard knee characteristics
s IRC circuit in expander/gate allows for inaudible elimination of disturbing noise signals
s Dynamic Enhancer for compression dependent equalization
s Extremely low-noise operational amplifiers and high-grade VCAs
s High-quality detent potentiometers and backlit switches
s Stereo Couple function selectable with real totaling of RMS output
s Accurate 12-digit LED meters for input level, output level and gain reduction
s Switchable side-chain input with side-chain monitor function
s Operating level switchable from +4 dBu to -10 dBV
s Servo-balanced inputs and outputs featuring 1/4" jack and XLR connectors
s High-grade output transformer BEHRINGER OT-1 can be retrofitted
s Manufactured under ISO9000 certified management system 2

SPECIFICATIONS

AUDIO INPUT Connectors Type Impedance Nominal Operating Level Max. Input Level CMRR AUDIO OUTPUT Connectors Type Impedance Max. Output Level SC INPUT Connector Type Impedance Max. Input Level SC OUTPUT Connector Type Impedance Max. Output Level SYSTEM SPECIFICATIONS Bandwidth Frequency Response Noise THD IMD Crosstalk Stereo Coupling EXPANDER/GATE SECTION Type Threshold Attack Release COMPRESSOR SECTION Type Threshold Ratio Threshold characteristics Auto characteristics Manual Attack Time Manual Release Time Auto Attack Time Auto Release Time Output XLR and 1/4" jack RF filtered, servo-balanced input 50 kOhm balanced, 25 kOhm unbalanced +4 dBu/-10 dBV switchable +21 dBu balanced and unbalanced typ. 40 dB, >55 dB @ 1 kHz
XLR and 1/4" jack electronically servo-balanced output stage (optional transformerbalanced) 60 Ohms balanced, 30 Ohm unbalanced +21 dBu, +20 dBm balanced and unbalanced
1/4" jack RF-rejecting, DC de-coupled, unbalanced input >10 kOhm +24 dBu
1/4" jack RF-rejecting, DC de-coupled, unbalanced output 2 kOhm +21 dBu
20 Hz to 20 kHz, +0/-0.5 dB 0.35 Hz to 200 kHz, +0/-3 dB > 95 dBu, unweighted, 22 Hz to 22 kHz 0.008 % typ. @ +4 dBu, 1 kHz, Gain 1 0.04 % typ. @ +20 dBu, 1 kHz, Gain 1 0.01 % typ. SMPTE < -100 dB, 22 Hz to 22 kHz true RMS detection
IRC (Interactive Ratio Control) Expander variable (OFF to +15 dB) <1 ms / 50 dB, program dependent variable (SLOW: 100 ms / 1 dB, FAST: 100 ms / 100 dB)
IKA (Interactive Knee Adaption) Compressor variable (-40 dB to +20 dB) variable (1:1 to oo:1) variable (Interactive or Hard Knee) Wave Adaptive Compressor variable (0.5 ms / 20 dB to 100 ms / 20 dB) variable (0.05 ms / 20 dB to 5 s / 20 dB) typ. 15 ms at 10 dB, 5 ms at 20 dB, 3 ms at 30 dB program dependent, typ. 125 dB/s variable (-20 to +20 dB)

DYNAMIC ENHANCER SECTION Type Process FUNCTION SWITCHES SC EXTERN SC MON INTERACTIVE CONTOUR AUTO
dynamically controlled frequency correction variable (Off to 6)
I/O METER IN/OUT OPERATING LEVEL COUPLE
switches the detector section to the external SC input monitoring the external SC input, disengaging the normal audio enables the Interactive Knee Adaption characteristics allows for frequency dependent detection enables the automatic and program dependent setting of the Attack-/Release times, disengaging the manual Attack-/Release controls switches between input and output for the level meter relay controlled hard-bypass changes the internal reference level from +4 dBu to -10 dBV linking both channels for stereo operation and channel 1 becomes master
INDICATORS Gain Reduction Input/Output Level Expander/Gate Threshold Function switch OPTIONS Output Transformer POWER SUPPLY Mains voltages
12 element LED display: 1/2/4/6/9/12/15/18/21/24/27/30 dB 12 element LED display: -30/-24/-18/-12/-6/0/+3/+6/+9/+12/+18 dB 2 LED for under + and above - LED indicator for each
BEHRINGER transformer OT-1 refittable
Fuse Power consumption Mains connection PHYSICAL Dimension (H * W * D) Net Weight Shipping Weight
USA/Canada 120 V ~, 60 Hz U.K./Australia 240 V ~, 50 Hz Europe 230 V ~, 50 Hz General export model 100 - 120 V ~, 200 - 240 V ~, 50 - 60 Hz 100 - 120 V ~: T 250 mA H 200 - 240 V ~: T 125 mA H max. 20 Watts standard IEC receptacle
approx. 1 3/4" (44.5 mm) * 19" (482.6 mm) * 8 1/2" (217 mm) approx. 2.2 kg approx. 3.4 kg
BEHRINGER is constantly striving to maintain the highest professional standards. As a result of these efforts, modifications may be made from time to time to existing products without prior notice. Specifications and appearance may differ from those listed or illustrated.
The information contained in this sheet is subject to change without notice. No part of this sheet may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording of any kind, for any purpose, without the express written permission of BEHRINGER Spezielle Studiotechnik GmbH. BEHRINGER and AUTOCOM are registered trademarks. ALL RIGHTS RESERVED. 2000 BEHRINGER Spezielle Studiotechnik GmbH. BEHRINGER Spezielle Studiotechnik GmbH, Hanns-Martin-Schleyer-Str. 36-38, 47877 Willich-Mnchheide II, Germany Tel. +49 (0) / 92 06-0, Fax +49 (0) / 92 06-30

MDX1400

AUTOCOM PRO

www.behringer.com

BEHRINGER

BEHRINGER AUTOCOM

2001 BEHRINGER

AUTOCOM PRO MDX1400

BEHRINGER Soft Knee

Hard Knee

BEHRINGER AUTOCOM PRO AUTOCOM PRO ( BEHRINGER OT-1 AC )

BEHRINGER AUTOCOM PRO

AUTOCOM PRO 180

BEHRINGER OT-1

BEHRINGER AUTOCOM PRO (-10 dB) AUTOCOM PRO

Operating Level (+4 dB)

4.1: AUTOCOM PRO
BEHRINGER AUTOCOM PRO 8 COUPLE COUPLE 30 LED

AUTOCOM PRO SC RETURN

SC MON 1

SC FILTER

COUPLE I/O-METER 2 2

OUTPUT

IN/OUT PROCESS

SC EXT

+15 d Threshold LED ( FAST SLOW SLOW ) SLOW FAST + LED
AUTOCOM PRO MDX1400 - dB ) Hard Knee Soft Knee (IKA) +20 dB (INTERACTIVE

INTERACTIVE 1:1 1:

4 ATTACK RELEASE

MANUAL 20 dB

SC RETURN

(Out) ( )

30 dB (12 IN ( ) ) -10 dBV +4 dB I/O METER OUT ( OPERATING LEVEL

4.5: AUTOCOM PRO

(3. ) AUTOCOM PRO XLR ( ) OT-1 ( ) XLR 6.3 mm
AUTOCOM PRO MDX1400 AUTOCOM PRO (+4 dB) AUTOCOM PRO (-10 dB)
XLR 6.3 mm RF-rejecting DC-decoupled 50 k / 25 k / +4 dB -10 dB +21 dBu/ 40 dB >55 dB @ 1 kHz

6.3 mm )

( 60 / 30 / +21 dBu +20 dBm/
6.3 mm RF-rejecting DC-decoupled >10 k +24 dBu
6.3 mm RF-rejecting DC-decoupled 2k +21 dBu

S/N (THD) IMD

20 Hz bis 20 kHz +0/-0.5 dB 0.35 Hz 200 kHz +0/-3 dB -95 dBu unweighted 22 Hz 22 kHz 0.008% typ. @ +4 dBu 1 kHz 1 0.04% typ. @ +20 dBu 1 kHz 1 0.01% typ. SMPTE <-100 dB 22 Hz 22 kHz True RMS detection

Threshold

IRC (Interactive Ratio Control) (OFF +15 dB) (1:1 1:8) <1 ms / 50 dB (SLOW: 100 ms / 1 dB FAST: 100 ms / 100 dB)
IKA (Interactive Knee Adaptation) (-40 +20 dB) (1:1 :1) (Interactive Knee Hard Knee) ( ) (0,5 ms / 20 dB 100 ms / 20 dB) (0,05 ms / 20 dB 5 s / 20 dB) 15 ms/10 dB 5 ms/20 dB 3 ms/30 dB 125 dB/sec (-20 +20 dB)
SC EXT SC MON INTERACTIVE SC FILTER AUTO I/O METER IN/OUT OPERATING LEVEL COUPLE +4 dBu -10 dBV Interactive Knee Adaptation
Gain Reduction Input/Output Level Expander/Gate Threshold Compressor Threshold

LED LED + -

Threshold Threshold LED 3
: 1/2/4/6/9/12/15/18/21/24/27/30 dB : -30/-24/-18/-12/-6/-3/0/+3/+6/+9/+12/ +18 dB LED 2 Interactive Threshold +
BEHRINGER Transformator OT-1

/ U.K./

120 V ~ 60 Hz 240 V ~ 50 Hz 230 V ~ 50 Hz 100 - 120 V ~ 200 - 240 V ~

50 - 60 Hz

20 W 100 - 120 V ~ : T 250 mA H 200 - 240 V ~ : T 125 mA H IEC
1 (44.5 mm) 2.2 kg 3.4 kg

(482.6 mm)

(217 mm)