| MVC 121 xi |
|
| Audio system |
|---|
| Gain | |
| Balanced output | 0 dB |
| Unbalanced output | -6 dB |
| Frequency response | 20 Hz to 20 kHz, ±0.3 dB |
| THD + Noise | <0.02%, 20 Hz to 20 kHz
At maximum balanced output (unweighted) |
| S/N | |
| Analog Input to Analog Out | >100 dB, 20 Hz to 20 kHz
At maximum balanced output (unweighted) |
| Crosstalk | <-90 dB @ 20 Hz to 20 kHz, fully loaded |
| Calibration reference | |
| A/D | 1 kHz, +4.0 dBu sine (1.228 Vrms) = -17 dBFS
|
| D/A | 1 kHz, -17 dBFS sine = +4.0 dBu (1.228 Vrms) |
|
| Audio input |
|---|
| Mic/Line Inputs (1-2) | |
| Microphone inputs | 2 mono, mic/line, balanced/unbalanced |
| Connectors | (1) 6-pole, 3.5 mm captive screw, dual-mono, balanced/unbalanced |
| Impedance | >10k ohms balanced or unbalanced |
| Nominal level | +4 dBu when level is set to 0 dB gain; adjustable from −60 dBu to +4 |
| Maximum level | +21 dBu (at rated THD + N) when input gain is set to 0 dB |
| Equivalent input noise | <-120 dBV (1 µVrms) (at 40 dB input gain) |
| CMRR | >65 dB typical |
| Input gain adjustment | -18 dB to +60 dB in 0.1 dB steps, adjustable per input |
| Phantom power | +48 VDC, (enabled or disabled via software and the front panel) |
| Line Level Input | |
| Number/signal type | 1 stereo, line-level, balanced/unbalanced |
| Connectors | (1) 6-pole, 3.5 mm captive screw, stereo, balanced/unbalanced |
| Impedance | >10k ohms balanced/unbalanced |
| Nominal level | +4 dBu when level is set to 0 dB gain; adjustable from −60 dBu to +4 dBu |
| Maximum level | +21 dBu (at rated THD + N) when input gain is set to 0 dB |
| Equivalent input noise | <-120 dBV (1 µVrms) at 40 dB input gain |
| CMRR | >60 dB typical |
| Input gain adjustment | -18 dB to +24 dB in 0.1 dB steps, adjustable per input |
|
| Audio Output (Variable L/R, Fixed L/R) |
|---|
| Number/signal type | 2 stereo, line-level, balanced/unbalanced |
| Connectors | (2) 6-pole, 3.5 mm captive screw, stereo, balanced/unbalanced |
| Impedance | 100 ohms with balanced lines (or 50 ohms with unbalanced lines) |
| Gain error | ±0.1 dB channel to channel |
| Maximum level (Hi-Z) | >+21 dBu balanced, >+15 dBu unbalanced |
| Output Attenuation (VARIABLE) | -100 dB to 0 dB (controlled in 0.1 dB steps) |
| Output Gain (FIXED) | -24 dB to +12 dB (controlled in 0.1 dB steps) |
|
| Audio processing |
|---|
| A/D, D/A conversion | 24-bit / 48 kHz PCM |
| NOTE | 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu; All nominal levels are at ±10 %. |
|
|
| External Control (RS-232) |
|---|
| Serial control port | (1) 3-pole, 3.5 mm captive screw |
| Protocol and baud rate | Bidirectional RS-232: 38400 baud, 8 data bits, 1 stop bit, no parity |
| Pin configuration | Pin 1 = Tx, Pin 2 = Rx, Pin 3 = G |
| USB control port | 1 front panel USB-C (female) |
| Protocol | USB 2.0, low speed |
| Control/Configuration program | Extron DSP Configurator Pro for Microsoft Windows® 10/11 |
| API | Extron Simple Instruction Set (SIS™) |
|
| Digital Logic Inputs |
|---|
| Digital I/O ports | (1) 6-pole, 3.5mm captive screw |
| Pin configuration | Pin 1 = Read, Pin 2 = Read, Pin 3 = Read, Pin 4 = Read, Pin 5 = +5 VDC @ <= 150 mA, Pin 6 = GND |
| Programmable pullup resistor | 3k ohm |
| Over-Current protection | Pin 5 voltage output provides over-current and short circuit protection which resets after power-cycling |
|
| General |
|---|
| External power supply | |
| Part number | 70-1175-01 |
| Model | PS 1205 C |
| Input (AC) | 100-240 VAC, 50-60 Hz 0.25 A |
| Output (DC) | 12 VDC, 0.5 A, 6 watts |
| Power input requirement | 12 VDC / 0.46 A |
| Power consumption |
| Device | 4.2 watts |
| Device and power supply | 5.2 watts |
| Thermal dissipation |
| Device | 13.0 BTU/hr |
| Device and power supply | 16.6 BTU/hr |
| Cooling method | Passive, unventilated |
| Environmental | |
| Ambient temperature/humidity | Storage: -40° to +158°F (-40° to +70°C) / 10% to 90% (noncondensing)
Operating: +32° to +122°F (0° to +50°C) / 10% to 90% (noncondensing) |
| Mounting options | |
| Rack mount | Yes, with optional 1U rack shelf |
| Furniture mount | Yes, with optional mini under-desk mounting kit |
| Physical properties | |
| Enclosure type | Metal |
| Enclosure dimensions | 1.7" H x 4.3" W x 3.0" D (1U high, quarter rack wide)
(43 mm H x 109 mm W x 76 mm D)
(Depth excludes connectors and knobs) |
| Product weight | 0.5 lbs (0.2 kg) |
| Regulatory compliance | |
| Safety | CE, c-UL, UL |
| EMI/EMC | CE, C-Tick, FCC Class A, ICES, VCCI |
| Environmental | Complies with the appropriate requirements of RoHS, WEEE |
| Warranty | |
| Device | 3 years parts and labor |
| Everlast power supply warranty | 7 years parts and labor |
| NOTE | All nominal levels are at ±10%. |
|
| NOTE | Specifications are subject to change without notice. |
|
| (6257-D2) |