Crown MT-1200 - Manual

M I C R O - T E C H S E R I E S

T

he

Crown

®

Micro-Tech

®

600, 1200 and

2400 are the original industry standards
for touring amplifi ers. Micro-Tech am-

plifi ers are known around the world as the
benchmark for high-density, ultra-pure power
in a compact package. In addition, each model
gives you Crown’s legendary ODEP

®

protection

to keep the show going long after other ampli-
fi ers would fail.

Micro-Tech

amplifi ers use proven technol-

ogy and a miniaturized design to deliver
terrifi c value for their size, weight and price.
Crown’s patented ODEP protection circuitry
and Grounded Bridge

™

output stages combine

to provide performance and reliability that
surpass traditional designs. Micro-Tech ampli-
fi ers also have an independent high-voltage
power supply for each channel. This approach
results in extremely low crosstalk and makes
it possible to use each channel as a separate
amplifi er.

Plus, your investment in a Micro-Tech ampli-
fi er is backed by Crown’s unequaled Three-
Year, No-Fault, Fully Transferable Warranty that
covers everything.

For more details about the Crown Micro-Tech
Series, contact the Crown Technical Support
Group at 800-342-6939 or 574-294-8200.
Also, visit the Crown Audio website at www.
crownaudio.com.

Specifi cations

The following applies to 120 VAC, 60 Hz units in Stereo mode
with both channels driven into 8 ohm loads and an input
sensitivity of 26 dB unless otherwise specifi ed. Specifi cations
for units supplied outside the USA may vary slightly at differ-
ent AC voltages and frequencies.

Power

Output Power:

See power charts below.

Load Impedance:

Safe with all types of loads.

Rated for 2 to 16 ohms in Stereo mode, 4 to
16 ohms in Bridge-Mono mode, and 1 to 4
ohms in Parallel-Mono mode.

Voltage Gain (at maximum level setting):

MT-600:

20:1 ±6% or 26 dB ±0.5 dB at 26

dB gain setting. 55:1 ±6% or 35 dB ±0.5 dB
at 0.775 volt sensitivity; 31:1 ±6% or 30 dB
±0.5 dB at 1.4 volt sensitivity.

MT-1200:

20:1 ±6% or 26 dB ±0.5 dB at 26

dB gain setting. 64:1 ±6% or 36 dB ±0.5 dB
at 0.775 volt sensitivity; 34:1 ±6% or 31 dB
±0.5 dB at 1.4 volt sensitivity.

MT-2400:

20:1 ±6% or 26 dB ±0.5 dB at 26

dB gain setting. 83:1 ±6% or 38 dB ±0.5 dB
at 0.775 volt sensitivity; 46:1 ±6% or 33 dB
±0.5 dB at 1.4 volt sensitivity.

Required AC Mains:

100, 120, 220 and

240VAC (±10%), 50 and 60 Hz units are avail-
able.

AC Line Current:

AC mains current, frequency and voltage
requirements are provided on the unit’s back
panel.

At Idle:

All amps draw no more than

90 watts.

AC Line Connector:

All units are shipped with

an appropriate plug and cord for the required
AC voltage.

Performance

Frequency Response:

±0.1 dB from 20 Hz to

20 kHz at 1 watt.

Phase Response:

±10 degrees from 20 Hz to

20 kHz at 1 watt.

Signal to Noise Ratio:

A-Weighted:

Better than 105 dB below full bandwidth
power.

20 Hz to 20 kHz:

Better than 100 dB below full bandwidth
power.

Total Harmonic Distortion (THD):

Less than

0.5% at full bandwidth power from 20 Hz to 1
kHz increasing linearly to 0.1% at 20 kHz.

Intermodulation Distortion (IMD):

(60 Hz and

7 kHz at 4:1) Less than 0.05% from 163 mil-
liwatts to full bandwidth power.

Damping Factor:

Better than 1,000 from 10 Hz

to 400 Hz.

Common Mode Rejection (CMR):

At rated full

bandwidth power, better than 70 dB from 20
Hz to 1 kHz falling linearly to better than 50 dB
at 20 kHz.

DC Output Offset (shorted input):

<

±10 mV.

Features

•

Crown’s Grounded Bridge™ design delivers
large voltage swings without using easily
stressed output-transistor confi gurations
like conventional amplifi ers; the results are
lower distortion and superior reliability

• Patented

ODEP

®

(Output Device Emulation

Protection) circuitry compensates for over-
heating and overload to keep the amplifi er
working when others would fail

•

High damping factor provides superior
motion control over low-frequency drivers
for clean, accurate low end

•

Full protection against shorted outputs,
open circuits, DC, mismatched loads, gen-
eral overheating, high-frequency overloads
and internal faults

•

1/4-inch and balanced XLR input connec-
tors

•

Ground lift switch to isolate chassis and
phone jack audio grounds

•

Internal three-position input sensitivity
switch provides settings of 0.775 and 1.4
volts for standard 1 kHz power, and 26 dB
voltage gain

•

Three-Year, No-Fault, Fully Transferable
Warranty completely protects your invest-
ment and guarantees its specifi cations

MT-600

MT-1200

MT-2400

8 ohm Stereo (per channel)

1 kHz
Power

225W

325W

400W

655W

750W

4 ohm Bridge-Mono

8 ohm Bridge-Mono

2 ohm Stereo (per channel)

4 ohm Stereo (per channel)

MT 600

*1 kHz Power: refers to maximum average power in watts
at 1 kHz with 0.1% THD.

*

8 ohm Stereo (per channel)

1 kHz
Power

520W

800W

1,050W

1,585W

2,070W

4 ohm Bridge-Mono

8 ohm Bridge-Mono

2 ohm Stereo (per channel)

4 ohm Stereo (per channel)

MT 2400

*1 kHz Power: refers to maximum average power in watts
at 1 kHz with 0.1% THD.

*

8-ohm Stereo (per channel)

1 kHz
Power

310W

480W

675W

970W

1,300W

4-ohm Bridge-Mono

8-ohm Bridge-Mono

2-ohm Stereo (per channel)

4-ohm Stereo (per channel)

MT 1200

*1 kHz Power: refers to maximum average power in watts
at 1 kHz with 0.1% THD.

*