Extron Electronics MPA 181T User Guide - Manual (Page 16)

MPA 181T • Specifications, Part Numbers, and Accessories MPA 181T • Specifications, Part Numbers, and Accessories
Specifications, Part Numbers, and Accessories
A-3
Input level sensitivity ................. -16 dBV (158 mV) from unbalanced input
for maximum output (18 watts at 70 V
output and with the level set to
maximum) before clipping
0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV 2 dBu
Audio output
Number/signal type ................... 1 single channel (mono) 70 V output or
1 direct 4 or 8 ohm speaker output
Connectors .................................... (1) 5 mm captive screw connector, 4 pole
Minimum load impedance ......... 2 ohms
Amplifier type .............................. Improved Class D
Continuous power with a full load and 1% THD
70 V system ....................... 18 watts (rms)
At 4 ohms .......................... 14 watts (rms)
At 8 ohms .......................... 8 watts (rms)
Damping factor ............................ >30 (with a 4 ohm load)
Control/remote — amplifier
Control port .................................. (1) 3.5 mm captive screw connector, 5 pole
Pin configuration ......................... Pin 1 = 10 V, pin 2 = volume/mute control
voltage, pin 3 = GND
General
External power supply ............... 100 VAC to 240 VAC, 50/60 Hz, external,
autoswitchable; to 12 VDC, 3 A (max.),
regulated
Power input requirements ......... 12 VDC, up to 3 A
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
Rack mount ................................... Yes, with optional 1U rack shelf, part #60-
190-10 or 60-604-10. Also furniture
mountable with optional Mini Under-
Desk Mounting Kit, #70-077-10 or
mountable to a projector mount with
optional kits PMK 350 (#70-563-02, -03) or
PMK 300 (#70-374-01).
Enclosure type .............................. Metal
A-2
Specifications
Audio
Frequency response
8 ohm direct output ......... 20 Hz to 20 kHz, ±1.5 dB
70 V output ....................... 110 Hz to 20 kHz, +0.5/-3 dB
THD + Noise ................................ 0.1% @ 1 kHz at nominal level
(1 watt, 8 ohm load, or 70 V output)
S/N ................................................ >72 dB @ 20 Hz to 20 kHz at maximum
output (unweighted)
CMRR ............................................ >80 dB @ 1 kHz, >70 dB @ 20 kHz
Bass adjustment ........................... ±10 dB @ 100 Hz (reference) to 1 kHz
(2 dB tolerance)
Treble adjustment ........................ ±10 dB @ 10 kHz (reference) to 1 kHz
(2 dB tolerance)
Audio input
Number/signal type ................... 1 stereo/mono, balanced/
unbalanced input
2 stereo/mono, unbalanced inputs
(The three inputs are individually
buffered and mixed together. Stereo
signals are actively summed into a mono
signal)
Connectors .................................... (1) 3.5 mm captive screw connector, 5 pole
(main input)
(1) 3.5 mm mini audio jack (tip, ring,
sleeve)
1 pair RCA
Impedance .................................... 18k ohms unbalanced, 23k ohms
balanced, DC coupled
Nominal level
RCA and mini jack .......... -10 dBV (316mVrms) (unbalanced)
Captive screw ................... +4 dBu, (1.23mVrms) (balanced)
Maximum level
Level pot. at 11 o’clock .... +6 dBV (unbalanced), +16 dBu (balanced)
at 1% THD+N
Level pot. at 9 o’clock ...... +16 dBV (unbalanced), +23 dBu (balanced)
at 1% THD+N