Extron electronic MVX VGA A User Manual
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Extron MVX 44/48/84/88/128 VGA A • Specifications
Impedance
MVX 128 VGA A ���������������� >10k ohms unbalanced/balanced, DC coupled
All other models ���������������� >18k ohms unbalanced, DC coupled
Nominal level
MVX 128 VGA A ���������������� 0 dBV, 0 dBu
All other models ���������������� -10 dBV (316 mV) (default), but also compatible with +4 dBu (1�23 V), 0 dBu
(0�775V), -20 dBV (100 mV)
Maximum level
MVX 128 VGA A ���������������� >+19�5 dBu (7�3316 V), (balanced or unbalanced) at 0�01% THD+N
All other models ���������������� >+12 dBV (4 V), (unbalanced) at 1% THD+N
Input gain
MVX 128 VGA A ���������������� -18 dB to +24 dB, adjustable per input by RS-232/422, Ethernet, or front
panel
All other models ���������������� -18 dB to +10 dB, adjustable per input; default = 0 dB� (This is referenced to
the internal bus signal level� It can be verified by measuring the unbalanced
output when the output level is set to “Consumer”�)
N
0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu
Audio output
Output gain ������������������������������������ 0 dB unbalanced (consumer) or +12 dB balanced (pro), selectable;
default = +12 dB, balanced, when output level is set to “Pro”
Number/signal type
MVX 44/84 VGA A ����������� 4 stereo, balanced/unbalanced
MVX 48/88/128 VGA A ��� 8 stereo, balanced/unbalanced
Connectors
MVX 44/84 VGA A ����������� (4) 3�5 mm captive screw connectors, 5 pole
MVX 48/88/128 VGA A ��� (8) 3�5 mm captive screw connectors, 5 pole
Impedance �������������������������������������� 50 ohms unbalanced, 100 ohms balanced
Gain error ��������������������������������������� ±0�1 dB channel to channel
Nominal level (output volume range)
MVX 128 VGA A ���������������� 0 to 64 (-75�8 dB to 0 dB) in 1 dB increments from steps 1 to 64, 12 dB
increment from step 0 to 1
All other models ���������������� +4 dBu (1�23 V) (default) balanced (pro), or
-10 dBV (316 mV) unbalanced (consumer), selectable
Maximum level (Hi-Z)
MVX 128 VGA A ���������������� >+21 dBu, balanced or unbalanced, at 0�1% THD+N
All other models ���������������� >+22 dBu, balanced; >+14 dBV, unbalanced at 1% THD+N
Maximum level (600 ohm)
MVX 128 VGA A ���������������� >+15 dBm, balanced or unbalanced, at 0�1% THD+N at default settings
All other models ���������������� >+20 dBu, balanced; >+12 dBV unbalanced at 1% THD+N at default settings
Control/remote — switcher
Serial control port
MVX 128 VGA A ���������������� 1 RS-232 or RS-422, 9-pin female D connector
All other models ���������������� 1 RS-232, 9-pin female D connector
Baud rate and protocol
MVX 128 VGA A ���������������� 9600 (default), 19200, 38400, 115200 baud (adjustable); 8 data bits, 1 stop bit,
no parity
All other models ���������������� 9600, 8-bit, 1 stop bit, no parity