Extron MVC 121 - Manual

Specifications — MVC 121

1

Extron MVC 121 Mic/Line Mixer and Volume Controller • Specifications

Audio

Gain from mic input to both fixed and variable outputs at default settings

Mic DIP switch = line level Unbalanced output: +20 dB; balanced output: +26 dB
Mic DIP switch = mic level Unbalanced output: +50 dB; balanced output: +56 dB

Gain from main input to both fixed and variable outputs at default settings

Unbalanced output: 0 dB; balanced output: +6 dB

Master volume range .................... 0 to 92 ("off", and -79 dB to +12 dB in 0.5 dB steps)
Mic 1, 2, and Main 3 gain range .. -79 dB to +12 dB in 0.5 dB steps
Frequency response ...................... 20 Hz to 20 kHz, ±0.05 dB
THD + Noise .................................. 0.03% @ 1 kHz at nominal level
S/N .................................................. >90 dB, balanced, at maximum output
Crosstalk ......................................... <-80 dB @ 1 kHz, <-60 dB @ 20 kHz, fully loaded
Stereo channel separation ............ >80 dB @ 1 kHz, >60 dB @ 20 kHz
CMRR .............................................. >75 dB @ 20 Hz to 20 kHz

N

All input gain default settings are at 80. The master volume default setting is 50 (-30 dB).

Audio input

Number/signal type

Microphone inputs ............ 2 mono, balanced/unbalanced
Main input .......................... 1 stereo, balanced/unbalanced

Connectors

Microphone inputs ............ (1) 3.5 mm captive screw connector, 5 pole
Main input .......................... (1) 3.5 mm captive screw connector, 5 pole

Impedance ...................................... >10k ohms, DC coupled
Nominal level (mic inputs)

DIP switch = line level ...... -30 dBV (32 mV) for a wireless microphone
DIP switch = mic level ...... -60 dBV (1 mV) for a wired microphone

Nominal level (main input) ......... -10 dBV (316 mV)
Maximum level .............................. +20 dB above nominal level, (balanced or unbalanced) at 1% THD+N
Input gain adjustment .................. -79 dB to +12 dB, adjustable per input
Input level sensitivity (mic inputs)

DIP switch = line level ...... -42 dBV (8 mV) for nominal output
DIP switch = mic level ...... -72 dBV (0.25 mV) for nominal output

Input level sensitivity (main input) -22 dBV (79 mV) for nominal output

N

0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV

≈

2 dBu

Audio output

Number/signal type ..................... 2 stereo, balanced/unbalanced
Connectors ..................................... (2) 3.5 mm captive screw connector, 5 pole
Impedance ...................................... 50 ohms unbalanced, 100 ohms balanced
Gain error ....................................... ±0.1 dB channel to channel
Nominal level ................................ +4 dBu (1.23 V), balanced output (when gain is set to +6 dB)

-10 dBV (0.316 V), unbalanced output

Maximum level (Hi-Z) ................. >+24 dBu, balanced; >+18 dBu, unbalanced at 1% THD+N
Maximum level (600 ohm) ........... >+15 dBm, balanced at 1% THD+N

Control/remote— mixer/volume controller

Serial control port .......................... RS-232, 3.5 mm female captive screw connector (3 poles of a 6 pole

connector)

Baud rate and protocol ................. 9600, 8-bit, 1 stop bit, no parity
Serial control pin configurations . 1 = TX, 2 = RX, 3 = GND