Owner's Manual

5
POWER REQUIREMENT
DIMENSIONS
THD at 100 W
at 1 kHz 0.0010%
at 20 kHz 0.015%
IMD at 100 W
ITU-R (19 kHz + 20 kHz) 0.0005%
SMPTE (60 Hz + 7 kHz) 0.002%
SNR, IEC-A, ref. 225 W 120 dB
Frequency Response, 20 Hz to 20 kHz
open circuit ± 0.1 dB
8 1 ± 0.1 dB
4 1 ± 0.1 dB
2 1 ± 0.2 dB
Power Bandwidth, -3 dB at 200 W into 8 ohms 90 kHz
Slew Rate 30 V/μs
Damping Factor, 20 Hz to 1 kHz 300
Channel Separation, 100 Hz to 10 kHz >65 dB
Input Impedance
RCA 10 k1
XLR 15 k1
Input Sensitivity, 225 W into 8 1 1.5 Vrms
Voltage Gain 29 dB
This product operates from a single phase AC power source that supplies 108V-132V
at a frequency of 60 Hz for the 120V version and 198V-264V at a frequency of 50/60 Hz
for the 220V-240V version.
Height 6-5/8” (16.9 cm)
Rackmounted Height 4U
Width 17-1/4” (43.8 cm)
Depth 18-1/8” (46 cm)
Weight (unpacked)
MCA 525 61 lb (27.5 kg)
MCA 325 43 lb (19.5 kg)
MCA 225 40 lb (18.0 kg)
MEASURED PERFORMANCE
POWER OUTPUT
Continuous 20 Hz to 20 kHz, <1% THD (all models)
Consumption
MCA 525
MCA 325
MCA 225
standby
2.0 W
1.4 W
1.0 W
typical
550 W
350 W
240 W
high output
1200 W
750 W
500 W
idle
80 W
47 W
35 W
Load
8 ohms
4 ohms
2 ohms
Watts
225 W
400 W
600 W