MVC 121 • Specifications, Parts, Accessories
MVC 121 • Specifications, Parts, Accessories
Specifications, Parts, and Accessories
A-3
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
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
Contact closure mute control .... 1 = mic 1, 2 = mic 2, 3 = main input
Program control .......................... Extron’s control program for Windows
®
Extron’s Simple Instruction Set (SIS
™
)
General
External power supply ................ 100 VAC to 240 VAC, 50/60 Hz, external,
autoswitchable; to 12 VDC, 1 A, regulated
Power input requirements ......... 12 VDC, 0.5 A.
Temperature/humidity .............. Storage -40° to +158°F (-40° to +70°C) /
10% to 90%, noncondensing
Ope32° to +122°F (0° to +50°C) /
10% to 90%, noncondensing
Rack mount .................................. Yes, with optional 1U rack shelf, part
#60-190-01 or 60-604-01; or VersaTools
®
rack shelf, part #60-190-20 or 60-604-20;
furniture mountable with optional under-
desk mounting brackets, #70-212-01; and
projector mountable with kit #70-217-01
Enclosure type .............................. Metal
A-2
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
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)
im Vertrieb von
CAMBOARD Electronics
www.camboard.de
Tel. 07131 911201
Fax 07131 911203
