Meyer Sound M3D Operating Instructions Manual page 27

Table 2. M3D Line Array Specifications (continued)
Audio input
Type
Maximum common mode
range
Connectors
Input impedance
Wiring
CMRR
RF filter
TIM filter
Input level
Nominal input sensitivity
Amplifiers
Amplifier type
Output power
THD, IM TIM
Load capacity
Cooling
AC Power
AC power connector
Voltage selection
Safety agency rated
operating voltage
Turn on/turn off points
Current Draw
Idle current
Max. long-term continuous
current (>10 sec)
Meyer Sound Laboratories Inc
Differential, electronic balanced
±15 V DC, clamped to earth for voltage transient protection
Female XLR input with male XLR loop output
10k ohms differential between pins 2 and 3
Pin 1: Chassis/earth through 220k ohm, 1000 pF, 15 V clamp network to provide virtual ground lift at audio
frequencies
Pin 2: Signal +
Pin 3: Signal -
Case: Earth ground and chassis
> 50 dB, typically 80 dB (50 Hz–500 Hz)
Common mode: 425 kHz
Differential mode: 142 kHz
< 80 kHz (integral to signal processing)
Audio source must be capable of producing a minimum of 20 dBV (10 Vrms, 14 Vpk) into 600 ohms in
order to produce maximum peak SPL over the operating bandwidth of the speaker.
0 dBV (1 Vrms, 1.4 pk) continuous is typically the onset of TPL limiting for noise and music.
Complementary power MOSFET output stages (class AB/H) based on 95 Vpk into 4 ohms
4500 watts (1125 watts/channel, xfour channels)
Note: Amplifier wattage rating is based on the maximum unclipped burst sine-wave RMS voltage the
amplifier will produce into the nominal load impedance; in this case, 67 Vrms (95 Vpk) into 4 ohms.
< .02%
4 ohms minimum impedance each channel
Forced air cooling, four fans total (two ultra high-speed reserve fans)
250VAC NEMA L6-20 (twistlock) inlet or IEC 309 male inlet
Optional VEAM connector (integrates AC, audio and network)
Automatic, two ranges, each with high-low voltage tap (uninterrupted)
95 VAC–125 VAC, 208 VAC to 235 VAC, 50/60 Hz
85 VAC–134 VAC; 165 VAC - 264 VAC
1.2A RMS (115 VAC)
0.6A RMS (230 VAC)
1.3A RMS (100 VAC)
18 A RMS (115 V)
9 A RMS (230 V)
20 A RMS (280 V)
M3D™ Line Array • 21