Specifications MVC | Extron electronic MVC 121 instruction

Specifications — MVC 121

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

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

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

N0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu

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

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

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