Specifi cations 2-1
130366-1 Rev. A
MA-3600VZ Service Manual
©2000 Crown International, Inc.
2 Specifi cations
These specifi cations apply to 120 VAC units in stereo mode with 8 ohm loads and an input
sensitivity of 26 dB unless otherwise specifi ed.
120 VAC, 60 Hz Units: These units are equipped with transformers rated for 120 VAC,
60 Hz power.
International Units: These units are equipped with transformers for either 100 VAC, 50/60
Hz, or 230 VAC, 50/60 Hz power.
2.1 Performance
Frequency Response: ±0.1 dB from 20 Hz to 20 kHz at 1
watt.
Phase Response: ±10° from 10 Hz to 20 kHz at 1 watt.
Signal-to-Noise Ratio: Greater than 105 dB below rated
output (20 Hz to 20 kHz, A-weighted); 100 dB below rated
output (20 Hz to 20 kHz, no weighting).
Harmonic Distortion (THD): At rated output, less than 0.05%
from 20 Hz to 1 kHz increasing linearly to less than 0.1% at
20 kHz.
IM Distortion (IMD): Less than 0.05% from 368 milliwatts to
full rated output.
Damping Factor: Greater than 1,000 from 10 Hz to 400 Hz.
Crosstalk: See Figure 2.1.
Slew Rate: Greater than 30 volts per microsecond.
Voltage Gain: (At maximum output) 20:1 ±3% or 26 dB ±0.25
dB at +26 dB sensitivity, and 124.6:1 ±12% or 41.9 dB ±1.0
dB at 0.775 volt sensitivity.
2.2 Power
Output Power:
Note: Maximum average watts per channel (unless in Mono
mode) at 1 kHz with 0.1% or less THD.
120 VAC, 60 Hz Units:
Stereo mode with both channels driven:
1800 watts into 2 ohms.
1565 watts into 4 ohms.
1120 watts into 8 ohms.
Bridge-Mono mode:
3505 watts into 4 ohms.
3140 watts into 8 ohms.
Parallel-Mono mode:
3555 watts into 1 ohm.
3190 watts into 2 ohms.
100 VAC International Units:
Stereo mode with both channels driven:
1460 watts into 2 ohms.
1300 watts into 4 ohms.
980 watts into 8 ohms.
Bridge-Mono mode:
2835 watts into 4 ohms.
2625 watts into 8 ohms.
Parallel-Mono Mode
2820 watts into 1 ohm.
2585 watts into 2 ohms.
120 VAC International Units:
Stereo mode with both channels driven:
1490 watts into 2 ohms.
1300 watts into 4 ohms.
985 watts into 8 ohms.
Bridge-Mono mode:
2980 watts into 4 ohms.
2600 watts into 8 ohms.
Parallel-Mono Mode
2980 watts into 1 ohm.
2600 watts into 2 ohms.
230 VAC International Units:
Stereo mode with both channels driven:
1520 watts into 2 ohms.
1325 watts into 4 ohms.
965 watts into 8 ohms.
Bridge-Mono mode:
2800 watts into 4 ohms.
2515 watts into 8 ohms.
Parallel-Mono Mode
2910 watts into 1 ohm.
2565 watts into 2 ohms.
Load Impedance: Rated for 16, 8, 4, and 2 ohm use only.
Safe with all types of loads, even reactive ones.
AC Power Requirements: 100 VAC, 50/60 Hz; 120 VAC,
50/60 Hz; and 230 VAC, 50/60 Hz units are available. 230
VAC, 50/60 Hz units can be used with 220 and 240 VAC.
All versions draw 90 watts or less at idle. 100 and 120 VAC
units can draw up to 30 amps of current; 230 VAC units can
draw up to 15 amps. Refer to the back panel for your unit’s
specifi cations.
2.3 Controls
Enable: A front panel push button used to turn the amplifi er
on and off.
Level: A 31-position detented rotary attenuator for each
channel located on the front panel used to control the output
level.
Stereo/Mono: A three-position back panel switch used to
select Stereo, Bridge-Mono or Parallel-Mono operation.
Sensitivity: A three-position switch located inside the PIP
compartment used to select one of three input sensitivities
for both channels: 0.775 volts or 1.4 volts for standard 1 kHz
power or a voltage gain of 26 dB.
Input Ground Lift: A two position back panel switch used to
isolate the phone jack signal grounds from the chassis (AC)
ground.
Reset: A back panel button for each channel used to reset
the corresponding power supply. 100 and 120 VAC units
have 15 amp circuit breakers. 230 VAC units have 7.5 amp
circuit breakers.
2.4 Indicators
Enable: This amber indicator is on when the amplifi er is
switched on to show that the low voltage power supply is
operating.
Signal / IOC: Two green indicators fl ash with medium inten-
sity in sync with the amplifi er’s outputs to show signal pres-
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