Crown ma-1202 仕様ガイド

acro-Tech

®

 Series amplifi ers deliver 

      

superior sonic accuracy and enor- 
      mous  amounts  of  power  from  a  low-

profi le design, and are perfect for touring and 
fi xed installations. 

The Crown

®

 Macro-Tech 02 Series amps are 

enhanced versions of the Macro-Tech line. 
They offer the same features and performance 
of the original Macro-Techs while delivering 
key added benefi ts that continue to expand the 
versatility of this distinct product line.

When it comes to manufacturing amplifi ers, 
there are no shortcuts to quality. Crown’s 
Macro-Techs have proven themselves time and 
time again in some of the most demanding 
applications in the world.

For more details about the Crown Macro-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.

Note: Specifi cations relate to120 volt, 60 Hz units in Stereo 
mode with 8-ohm loads and an input sensitivity of 26 dB gain 
at 1 kHz rated power unless otherwise specifi ed. Specifi ca-
tions for units supplied outside the U.S.A. may vary slightly at 
different AC voltages and frequencies.

Output Power: See power charts below.

Load Impedance: Safe with all types of loads. 
Rated for 2 to 16 ohms in Stereo, 4 to 16 
ohms in Bridge-Mono and 1 to 4 ohms in 
Parallel-Mono mode.

Voltage Gain at 1 kHz, 8 ohm rated output: 

MA-602: 54:1 ±6% or 35 dB ±0.5 dB at 
0.775 volt sensitivity. 

30:1 ±6% or 30 dB ±0.5 dB at 1.4 volt 
sensitivity.

20:1 ±6% or 26 dB ±0.5 dB at 26 dB gain at 
the maximum level setting.

MA-1202: 64:1 ±6% or 36 dB ±0.5 dB at 
0.775 volt sensitivity. 

36:1 ±6% or 31 dB ±0.5 dB at 1.4 volt 
sensitivity.

20:1 ±6% or 26 dB ±0.5 dB at 26 dB gain at 
the maximum level setting.

MA-2402: 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.

20:1 ±6% or 26 dB ±0.5 dB at 26 dB gain at 
the maximum level setting.

Required AC Mains: 50/60 Hz; 100, 120, 220 
and 240VAC (±10%) units are available. All 
draw 100 watts or less at idle. Current, voltage 
and frequency requirements are provided on 
the unit’s back panel.

    MA-602 and MA-1202: NEMA5-15P (15A)     

    MA-2402: NEMA 5-20P (20A)

Frequency Response: ±0.1 dB from 20 Hz to 
20 kHz at 1 watt.

Phase Response: ±10 degrees from 10 Hz to 
20 kHz at 1 watt.

A-weighted: Better than 105 dB below rated 
full bandwidth power. 

20 Hz to 20 kHz: Better than 100 dB below 
rated full bandwidth power.

Total Harmonic Distortion (THD) at full-band-
width power: Less than 0.05% 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: Greater than 1,000 from 10 
Hz to 400 Hz.

Slew Rate: (Slew rates are limited to useful lev-
els for ultrasonic/RF protection.) Greater than 
13 volts per microsecond.

•  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 amplifier 
working when others would fail.

• IOC

®

 (Input/Output Comparator) circuitry im-

mediately alerts of any distortion exceeding 
0.05%, providing dynamic proof of distortion-
free performance.

•  Enhanced PIP2™ (Programmable Input Pro-

cessor) connector accepts new accessory 
modules that tailor the amplifi er to suit specifi c 
applications, such as networking via HiQnet™ 
or TCP/IQ™.

• Balanced 

XLR 

and 

1

/

4

-inch (6.35-mm) phone 

jack inputs for each channel on the standard 
PIP2-FXQ module.

•  Full protection from shorted, open and mis-

matched loads; general overheating; DC; 
high-frequency overloads; and full protection 
from internal fault are provided by our latest 
protection scheme: “Quad-Mute.”

•  Three Year No-Fault Full Warranty completely 

protects your investment and guarantees its 
specifi cations.

2 ohm Dual (per ch.)

1 kHz

Power

8 ohm Bridge-Mono

4 ohm Bridge-Mono

8 ohm Dual (per ch.)

4 ohm Dual (per ch.)

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

**20 Hz–20 kHz Power: refers to maximum average power 
in watts from 20 Hz to 20 kHz with 0.1% THD.

*

20 Hz–20 kHz

Power

**

2 ohm Dual (per ch.)

1 kHz

Power

8 ohm Bridge-Mono

4 ohm Bridge-Mono

8 ohm Dual (per ch.)

4 ohm Dual (per ch.)

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

**20 Hz–20 kHz Power: refers to maximum average power 
in watts from 20 Hz to 20 kHz with 0.1% THD.

*

20 Hz–20 kHz

Power

**

2 ohm Dual (per ch.)

1 kHz

Power

8 ohm Bridge-Mono

4 ohm Bridge-Mono

8 ohm Dual (per ch.)

4 ohm Dual (per ch.)

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

**20 Hz–20 kHz Power: refers to maximum average power 
in watts from 20 Hz to 20 kHz with 0.1% THD.

*

20 Hz–20 kHz

Power

**