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: QD4240                     

8ohm (Quad Ch)      40W     
4ohm (Quad Ch)      60W                                                          

8ohm bridged mono 120W

Input Sensitivity (8ohm, 1kHz)  0.775Vrms
Input Impedance 20kohm Balanced 
Slew Rate (8ohm, Full Swing) ±30V/?sec
Frequency Response (±0.5dB) 20kHz ~ 50kHz 
T.H.D. (f=20Hz~20kHz, Half Power) 0.03% 
Signal to Noise Ratio 105dB
Damping Factor (8ohm, 1kHz)  100
Rasidual Noise  -85dB
Channel Separation (8ohm, 1kHz)  80dB
Voltage Gain (4ohm)  26dB 29dB 32dB
Power Source  100-120VAC or 220-240VAC ; 50/60Hz
(supplied AC mains transformer depends on country requirements)
Power Consumption  300W 420W 770W
Weight  11.5kg/25.3lb 15.5kg/34.2lb 17kg/37.5lb
Dimensions  482(W) x 88(H) x 369(D) mm
/19(W) x 3.5(H) x 14.5(D) in

The model L 500 is a 2 x 250 Watts Power Amplifier. Linear Precision Series
power amps combine excellent audio performance, modern and innovative
circuit design, meticulous and exceptionally rigid construction, and the highest
levels of operational integrity and reliability with an appropriate and more than
realistic price. The robust steel chassis provides outstanding torsional strength
through L-shaped side panels reaching under the thick aluminium front panel.
Thermal breakers prevent the power supply units from being damaged by thermal
overload. Electronically controlled fans provide sufficient front-to-rear airflow and
a special cool air diverter takes care of thermal stability. The fans? noise-level is
extremely low which provides the possibility for studio use. If necessary, a supplied
air-filter can be mounted behind the front panel ventilation louvres.
 
Features
* Excellent audio performance
* Symmetrical topology
* Ultra-low distortion
* Generously dimensioned power supply units
* Suitable to be operated on loads down to 2 ohms
* Suitable to drive complex loads with phase angles of ± 90 degree
* Extensive protection circuitry
* Unique Back-EMF protection
* Switchable limiters
* Switchable Hi/Lo-Cut filters
* Robust steel chassis
* Exceptional low noise front-to-rear air-flow
* XLR-type inputs and direct-outs
* LED display shows On, In, Out, Limit and Protect
* Highly reliable operation

Specs
* Max. Output Power - into 8 ohms : 2 x 180 W at 1 kHz / THD = 1.0%
* Max. Output Power - into 4 ohms : 2 x 280 W at 1 kHz / THD = 1.0%
* Max. Output Power - into 2 ohms : 2 x 320 W at 1 kHz / THD = 1.0%
* Max. Output Power - into 8 ohms bridged : 1 x 560 W at 1 kHz / THD = 1.0%
* Max. Output Power - into 4 ohms bridged : 1 x 640 W at 1 kHz / THD = 1.0%
* Rated Output Power - into 8 ohms : 2 x 175 W at 20 Hz - 20 kHz / THD = 0.1 %
* Rated Output Power - into 4 ohms : 2 x 250 W at 20 Hz - 20 kHz / THD = 0.1 %
* Rated Output Power - into 2 ohms : 2 x 300 W at 20 Hz - 20 kHz / THD = 0.1 %
* Rated Output Power - into 8 ohms bridged : 1 x 500 W at 20 Hz - 20 kHz / THD = 0.1 %
* Rated Output Power - into 4 ohms bridged : 1 x 600 W at 20 Hz - 20 kHz / THD = 0.1 %
* Frequency Response : 0 dB ..... -1 dB/20 Hz - 20 kHz
* Phase Angle Response : ± 30 degree/20 Hz.....20 kHz
* Maximum Output Level : 45 V / RMS before clipping, no load, ref. 1 kHz / THD = 1%
* Voltage Gain ref. 1 kHz : 26 dB (constant gain option)
* Input Sensitivity : 0 dBu/0.775 V, +6 dBu/1.55 V at rated output / 4 ohms ref. 1 kHz
* Maximum Input Level : +21 dBu / 8.7 V
* Input Impedance active balanced : 20 kohms
* THD at Rated Output : < 0.05 % MBW = 80.0 kHz, f = 1 kHz
* IMD -SMPTE : < 0.01 % 60 Hz, 7 kHz, at rated output
* Signal-to-Noise Ratio : >105 dB at rated output into 4 ohms,
   A-weighted, RMS, input sensitivity +6 dBu
* Attenuation at rated output : > 70 dB f = 1 kHz
* Damping Factor internal 1 kHz : > 300
* DIM 30 : < 0.01 %
* DIM 100 : < 0.01 %
* Slew Rate internal : > 25 V / ?s
* Power Consumption : 300 W 1/8 rated output into 4 ohms
* Width : 483 mm
* Height : 88.1 mm
* Depth : 426 mm
* Weight : 14 kg
 

Power Output Level R-300 PLUS

STEREO
8ohm(T.H.D 0.05%)  170W+170W
4ohm(T.H.D 0.05%)  250W+250W

BRIDGED MONO
8ohm(T.H.D 0.05%)  460W
8ohm(T.H.D 0.5%)    500W

Frequency Response 20Hz- 20kHz, ±0.5dB

Convection Cooled

SoftStart Protection System

Balanced 10k&ohm;@0.775V Inputs

Low weight switching final power amplifier. Power 2X3500W / 4Ω, 2Χ4700W / 2Ω. 7000W bridged 8Ω. New integrated BSS OMNIDRIVE 4bit / 192kHz processor with Cirus Logic SHARC A / D and D / A Converters. LevelMAX peak voltage and RMS compressing, limiting, New hi-end FIR and IIR filters, 2sec delay / channel, as well as DSP presets for various speakers. LCD display on the front panel. USB input on the front panel for loading firmware and Speakers Tunning presets. Analog inputs with XLR, digital input AES / EBU, ethernet input RJ-45 with TCP / IQ protocol. Advanced 3rd generation power supply that allows the amplifier to operate at any voltage. Cooling circuit with microprocessor control with adjustable speed depending on the temperature. Analog and digital outputs (THRU) XLR. Exits speakon 5-way binding post, ground lift switch. Made of cast aluminum, height 2U rack. Suitable for P.A applications but also permanent installations. Weight 10.5kg