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MX-406 Mic/Line Mixer

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Front Panel

General Specifications

DISTORTION
THD at +4 dBu, 20Hz-20KHz <0.05%
THD at +12dBu, 30Hz-10KHz <0.05%
IMD (SMPTE) at +12dBu <0.05%
HUM & NOISE (20Hz-20KHz at max preamp gain)
Equivalent input hum and noise <-127dBu
Residual output noise, TRS outputs, all levels at minimum <-100dBu
Aux Out, Aux Master and all Ch. Aux at nom. <-80dBu

MAXIMUM VOLTAGE GAIN (±2dB)
MASTER
Mic/Line Input to Master Output +84dB
Mic/Line Input to Mono Output, 600 ohm load +84dB
AUX SENDS
Mic Input to Aux Master Output, pre ch. level 84dB
Mic Input to Aux Master Output, post ch. level 99dB
Stereo Line in to Aux Master Output 32dB

FREQUENCY RESPONSE
20Hz-20KHz +0.5/-1.0dB

EQUALIZATION
Bass ±12dB at 70Hz, shelving
Treble ±12dB at 8KHz, shelving

CROSSTALK
Adjacent inputs, 20Hz-20KHz <-65dB
VU METERS (Stereo Outputs) 0VU = +4dBu -21 to +6 VU

INDICATORS
PEAK INDICATORS
Peak Clip indicator on each input channel and left and right outputs,
illuminates 3dB below clipping

PHANTOM POWER
+48 VDC applied to all Mic Inputs, switchable on front panel.
Maximum total current draw = 80mA.
Maximum single channel current draw = 14mA.
Gradual power-up and down to eliminate "pops".

SHIPPING WEIGHT 15 lbs.

POWER REQUIREMENTS 100-240 Volts, 50-60 Hz – 30 watts

DIMENSIONS:
19" wide x 3.50" high x 8.0" deep.
Architect Specifications

MX-406
The unit shall be a six input stereo mixer having separate balanced outputs for both left and right channels. There shall be a transformer balanced mono-summed output with separate front panel level control. Each input channel shall have level and stereo-balance controls on one concentric pot. An Aux send shall be on each channel factory wired pre-fader EQ. The Aux send shall be configurable for Pre/Post EQ via circuit board jumper connection.

Each input channel shall have a two-band equalization control on one concentric pot located on the front panel. The equalization shall consist of high and low shelving points being fixed at 70Hz and 8KHz with a cut/boost range of +/- 12dB. Each input channel shall have 40 dB of available attenuation on the front panel, as well as a 20 dB mic input pad on the rear panel. Each input channel shall have an in/out insert point on a single TRS 1/4” phone connection, and a combination 1/4”-- XLR connector for balanced microphone and line input sources. Phantom power of +48VDC for each input must be available via a single rear panel switch.

There shall be one Master Aux Output control provided on the front panel. A 1/4” TRS Aux Master Output Jack shall be located on the rear panel. There shall be an additional stereo CD/Tape input on RCA jacks with level control. Separate stereo RCA tape outputs must also be provided. A TRS 1/4” Headphone Output and Level Control to monitor both Left and Right must be provided on the front panel.

Overall gain available from Mic Input to Master Output shall be 92dB, and the Mono Output level shall be +24dBu into 600 ohms. There shall be an eleven stage LED ladder output VU meter located on the front panel indicating signal levels from -21VU to +6VU and clip when the signal level is 3dB below actual clipping. Each individual channel shall have a clip indicator as well.

The mixer unit shall be no higher than two rack spaces and must be fully covered under a five year warranty. The mixer shall have an internal power supply with the power switch located on the rear panel. The mixer must be manufactured in The United States of America, with a shipping weight of 15 pounds.

The mixer shall be the model MX-406, manufactured by Ashly Audio, Inc. No other unit shall be acceptable unless data submitted from an independent test laboratory verifies that the above size/performance specifications are met.

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