Automatic Mixing Controller – Unbalanced Analogue I/O

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The Model E-1A Automatic Mixing Controller helps professional audio mixers handle multiple live mics without having to continually ride their individual faders. This eight-channel (analogue) or sixteen-channel (digital) signal processor patches into the input insert points of an audio mixing console.

It detects which mics are being used and makes fast, transparent cross-fades, freeing the mixer to focus on balance and sound quality instead of being chained to the faders. The Model E-1A’s voice-controlled crossfades track unscripted dialogue perfectly, eliminating cueing mistakes and late fade-ups while avoiding the choppy and distracting effects common to noise gates.


  • Eliminates late upcuts
  • Reduces PA feedback and studio noise
  • Eight channels analogue or sixteen channels digital
  • Dugan Control Panel for Java included
  • Channels may be grouped into three independent auto mixers
  • Half-rack size – mount two in one RU
  • Link up to eight units for up to 128 channels

Product Specs

Analogue Audio Inputs Unbalanced, 6 kOhm, -22 to +4 dBu nominal level, +21 dBu maximum
Analogue Audio Outputs Unbalanced, 100-Ohm source, drives a 600-Ohm load, +21 dBu maximum
Output Noise Less than -91 dBu (A-wtd); 112 dBA dynamic range
Digital I/O ADAT optical, 48 kHz/24 bit (will operate with 44.1 kHz digital I/O)
Frequency Response 10 Hz to 22 kHz, +0/-1 dB
Crosstalk -81 dB @ 20 kHz
Distortion Less than 0.003% THD+N at +21 dBu
Gain Unity
A/D and D/A 48 kHz/24 bit (will operate with 44.1 kHz digital I/O)
Audio Latency 0.6 ms
Optical Linking Up to 8 units (128 channels) may be linked; links with Models D-2, D-3, E, E-1, E-1A and Dugan-MY16
Connectors Audio – 1/4-in TRS; tip input, ring output
10/100 BASE T – RJ-45
Linking, Digital I/O – ADAT optical
Power – Coaxial 5.5 mm o.d., 2 mm i.d.
Power Nominal 12 VDC 1.3 A maximum; accepts 9-24 VDC, either polarity, or 9-18 VAC separate power supply unit; input 120 VAC, 60 Hz, 27 W; output 12 VDC, 1.5 A; Approved UL, CUL
Dimensions 1RU
H = 1.75 in (4.5 cm)
D = 8.3 in (21 cm)
W = 8.75 in (22.2 cm)
Rack Mounting Parts supplied for mounting one or two units in 1RU of 19-in rack
Weight 3.4 lb (1.5 kg)
7.0 lb (3.2 kg) in shipping box with power supply

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