CROWN MA-12000i Power Amplifier 2Χ4000 Watts

The Crown® Macro-Tech® i Series continues the Macro-Tech legacy of unparalleled sonic accuracy and detail, putting sound quality above all else
Patented, cutting-edge Class-I circuitry gets more power out of an amplifier with less waste
Rugged construction ensures that all Macro-Techs are built to withstand years of abuse on the road
Global Power Supply — designed to deliver maximum power no matter what country you work in
Built-in load, line voltage, input and output monitoring
Standard Ethernet networking via System Architect® lets system operators monitor and control the amplifier from any location

Performance 
Frequency Response (at 1 watt, 20Hz - 20 kHz into 8 ohms) ± 0.25 dB 
Signal to Noise Ratio below rated full-bandwidth power,
A-weighted  > 108 dB 
Total Harmonic Distortion (THD) at 1 watt into 8 ohms Total Harmonic Distortion (THD) Plus Noise at full rated power Intermodulation Distortion (IMD) 60 Hz and 7 kHz at 4:1, from full rated output to –30 dB  Damping Factor (20 Hz to 100 Hz at 8 ohms)  > 5000 
Crosstalk (below rated power, 20 Hz to 1 kHz)  > 80 dB
Common Mode Rejection (CMR) (20 Hz to 1 kHz)  > 55 dB, typically > 70 dB
DC Output Offset (Shorted input)  Input Impedance (nominal)  10 kilohms balanced, 5 kilohms unbalanced 
Maximum Input Level  +20 dBu typical
Load Impedance (Note: Safe with all types of loads)
 Stereo: 1/2/4/8/16 ohms     Bridge Mono: 2/4/8 ohms 
Input Sensitivity (referenced to 8 ohm rated output) 1.4V, 32 dB gain, and 26 dB gain
Voltage Gain (referenced to 8 ohm rated output) MAi-5000i:
37.1 dB to 22.2 dB MAi-9000i:
37.9 dB to 23.0 dB MAi-12000i:
39.3 dB to 24.5 dB
Required AC Mains  Universal AC input, 100-240VAC , 50/60 Hz (±15%). Maximum AC mains voltage 264VAC.
AC Line Connector  Five cordsets supplied with amplifier (USA, UK, European, Australia, India)
Construction 
Cooling  Dual-zone, microprocessor controlled, continuously variable speed fans,
front-to-back airflow
Front Panel  Cast aluminum with integrated handles.
Weight 28 pounds (12.7 kg) net, 36 pounds (16.3 kg) shipping. 
Dimensions (W x H x D)  19 in. (48.3 cm) W x 3.5 in. (8.9 cm) H x 16.2 in. (41.1 cm) D.
Protection Amplifier is protected against reactive loads, faults and shorts. If one channel experiences a catastrophic failure, the entire amplifier will shut down.

4-ohm Dual (per ch): 4,000W
8-ohm Dual (per ch): 2,100W
4-ohm Bridge: 7,000W
8-ohm Bridge: 8,000W

Power Output Level R-150 PLUS

STEREO
8ohm(T.H.D 0.05%)  50W+50W
4ohm(T.H.D 0.05%)  75W+75W

BRIDGED MONO
8ohm(T.H.D 0.05%)  50W
8ohm(T.H.D 0.5%)  170W

Frequency Response 20Hz- 20kHz, ±0.5dB

Convection Cooled

SoftStart Protection System

Balanced 10kΩ@0.775V Inputs

XB Series - Intelligent Power

Power Without Compromises.
The XB is designed for paging, music and alarm signals. Versatile, dynamic
and extremely rugged according to IEC286-3. For the highest requirements
in safety and quality.
Sequential power on, alive contacts and incorporated ground fault detection-
the XB is the solution under all conditions. Without the need for additional
equipment. For uninterrupted and troublefree operation.

High Tech SMT Design
Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter,
3 ms Muting Delay
PHOENIX / Speakon
LED Indicators for POWER, SIGNAL, CLIP, PROTECT
Temperature controlled, variable speed low noise fans
Volume Controls at the back
Stereo / Bridged / Parallel Mode
Softstart
Sequential Remote Power On
Alive Contact
Ground Lift
3 Years Warranty

TECHNICAL DATA:
XB 400:  2x 200 W @ 4 Ohm
Class:  AB
Frequency Response: 20 Hz - 20 kHz (0 / -0.3 dB)
THD:  < 0.025%
Signal-to-Noise Ratio:  < 103 dB
Channel Seperation:  > 85 dB
Input Sensitivity:  +6 dBu
Input Clipping:  22 dBu
Input Impedance:  20 kOhm
Damping Factor:  500 @ 4 Ohm
Cooling:  2x fan (temp. reg. variable speed)
Weight:12 kg /(26 lbs)                                    
Dimensions:  2 RU / 483 x 88 x 382 mm (19" x 3.5" x 15“)