Download MA-3600VZ Specifications

MA-3600VZ Specifications
These specifications apply to 120 VAC units in stereo mode with 8 ohm
loads and an input sensitivity of 26dB unless otherwise specified.
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.
Power
Output Power: The following are guaranteed minimums for
standard 1-kHz power from 120 VAC, 60 Hz North American
units. Maximum average watts per channel (unless in
Mono mode) at 1 kHz with 0.1% or less THD.
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.
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.
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.
Slew Rate: Greater than 30 volts per microsecond.
Voltage Gain: (At maximum output) 20:1 6% or 26 dB 0.25
dB at +26 dB gain setting, and 124.6:1 6% or 41.9 dB
1.0 dB at 0.775 volt sensitivity.
Controls
Enable: A front panel push button used to turn the
amplifier 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.
Indicators
Enable: This amber indicator is on when the amplifier
is switched on to show that the low voltage power
supply is operating.
Signal / IOC: Two green indicators flash with medium
intensity in sync with the amplifiers outputs to show
signal presence. In the unlikely event the output
waveform differs from that of the input by 0.05% or
more, they flash brightly to indicate distortion. As
sensitive distortion indicators they provide proof of
performance. Note: It is normal for the Channel 2 IOC
indicator to remain on in
Parallel-Mono mode.
ODEP: Each channel has a multifunction LED (light
emitting diode) indicator that shows the channels
energy reserve status. Normally, the LEDs are brightly
lit to show that reserve energy is available. In the
rare event that a channel has little reserve, its
indicator dims in proportion to ODEP limiting. An ODEP
indicator may also turn off under other, more unusual
circumstances.
Input/Output
Input Connector: Balanced -inch phone jacks on chassis
and internal PIP connector. (Balanced 3-pin XLR
connectors are provided on the P.I.P.-FX which is a
standard feature.)
Input Impedance: Nominally 20 k ohms, balanced.
Nominally 10 K ohms, unbalanced.
Input Sensitivity: Switchable between 0.775 V
(unbalanced) for rated output or a fixed voltage gain
of 26 dB.
Output Connector: Color-coded dual binding posts
(banana jacks).
Output Impedance: Less than 10 milliohms in series with
less than 2 microhenries
DC Output Offset: (Shorted input) 10 millivolts.
Output Signal
Stereo: Unbalanced, two-channel.
Bridge-Mono: Balanced, single-channel. Channel 1
controls are active; Channel 2 controls are inactive
and not removed from operation.
Parallel-Mono: Unbalanced, single-channel. Channel 1
controls are active; Channel 2 controls are inactive
but not removed from operation.
Protection
Macro-Tech amplifiers are protected against shorted,
open or mismatched loads; overloaded power supplies;
excessive temperature, chain destruction phenomena,
input overload damage and high-frequency blow-ups. They
also protect loudspeakers from input/output DC and
turn-on/turn-off transients.
If unreasonable operating conditions occur, the
patented ODEP circuitry proportionally limits the drive
level to protect the output devices, particularly in
the case of elevated temperature. Transformer
overheating results in a temporary shutdown of the
offending channel. When it has cooled to a safe
temperature, the transformer automatically resets
itself. Controlled slew rate voltage amplifiers protect
against RF burnouts, and input overload protection is
provided by current-limiting resistance at the input.
Turn On: The four second turn-on delay prevents
dangerous turn-on transients. Turn-on occurs at zero
crossing of the AC waveform, so power sequencers are
rarely needed with multiple units. Note: The turn-on
delay time may be changed. Contact Crowns Technical
Support Group for details.
Circuit Breaker: Circuit breaker current ratings vary
based on the AC operating power.
Construction
Durable black powder coated steel chassis and aluminum
front panel with Lexan overlay; specially designed
flow-through ventilation from front to side panels.
Cooling: Forced-air with custom heat diffusers and
patented circuitry to promote uniform dissipation.
Dimensions: 19 inch (48.3 cm) standard rack mount (EIA
Std. RS-310-B), 3.5 inch (8.9 cm) height, 16 inch (40.6
cm) depth behind mounting surface and 2.5 inches (6.4
cm) in front of mounting surface.
Weight: Center of gravity is 6 inches (15.2 cm) behind
the front mounting surface.
120 VAC, 60 Hz Units:
Net weight 55 lbs, 1.5ounces (25.0kg); shipping
weight 63lbs, 10ounces (28.9 kg).
100 VAC International Units:
Net weight 54 lbs, 5ounces (24.7kg); shipping
weight 63lbs, 0.5ounces (28.6 kg).
120 VAC International Units:
Net weight 55 lbs, 1.5ounces (25.0kg); shipping
weight 63lbs, 10ounces (28.9 kg).
230 VAC International Units:
Net weight 53 lbs, 6ounces (24.2kg); shipping
weight 61lbs, 15ounces (28.1 kg).