MONTARBO GRAVIS 46 4600W 2U. SMPS Power Amplifier

STEREO MODE: 2 x 850W @ 8Ω. 2 x 1400W @ 4Ω. 2 x 2300W @ 2Ω.
BRIDGE MODE: 3000W @ 8Ω. 4600W @ 4Ω.
PROTECTIONS: Soft start DC, short circuit, over load, clip limit, over heat,
progressive volume, VHF. Weight 13 kg.
Dimension W 483 x H 89 x D 505 mm.
Assembled in China. Engineered by Montarbo.

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