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QSC EX 4000
Power output: 720 watts per channel into 8Ω (stereo), 2200W into 8Ω (mono)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.1%
Damping factor: 200
Gain: 38 dB
Input sensitivity: 1V
Signal to noise ratio: 100dB
Speaker load impedance: 2Ω (minimum)
Dimensions: 483 x 133 x 455mm
Weight: 29kg
$$$
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QSC PLX 3602
Stereo - 1800W/ch @ 2 ohms, 1250W/ch @ 4 ohms, 775W/ch @ 8 ohms
Bridged mono mode - 3600W @ 4 ohms, 2600W @ 8 ohms
Very lightweight (21 lbs.)
Advanced cooling design with front exhaust
Power, clip, -10dB, and signal present LEDs
Front-panel gain controls
Balanced XLR inputs with TRS connectors
PowerLight power supply
Clip limiting
Thermal limiting
Speakon NL4 and binding post outputs
100Hz high-pass and low-pass filters for bi-amping subwoofer and satellite systems without the need for an external crossover
Switchable/defeatable 33Hz infrasonic filters protect woofers from over-excursion damage
$$$
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QSC RMX 4050HD
Delivers 800W per side into 8 ohms, 1300W into 4 ohms, 1600W into 2 ohms, and 2600W bridged mono into 8 ohms
Works as hard into 2-ohm loads as most competing amps will into 4 ohms
Extremely efficient 3-tier, Class H design
Dual mono high-current power supply
High-current toroidal transformers, independent user-defeatable clip limiters
Selectable low-frequency filters (30Hz or 50Hz)
Balanced 1/4" TRS, XLR, and barrier strip inputs
Binding post and Neutrik Speakon outputs
Front mounted gain control
Signal and clip LEDs
3RU chassis only 16" deep
$$$
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QSC RMX 5050
Extremely high power
Advanced thermal performance delivers higher continuous power in 2-ohms stereo or 4-ohms bridged applications
Dual mono, high current power supply for increased reliability and performance
3RU chassis is 16" deep.
High-current toroidal transformers for greater 2-ohm power and low noise
Independent user-defeatable clip limiters reduce distortion
Selectable low-frequency filters (30Hz or 50Hz) protect speakers and increase headroom
Balanced 1/4" (6.3mm) TRS, XLR, and barrier strip inputs for maximum flexibility
Binding post and Neutrik Speakon outputs
Front-mounted gain controls for easy access
Signal and Clip LED indicators to monitor performance
3-year warranty
$$$
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Crown Macro-Tech 5000VZ
Power output: 1300 watts per channel into 8Ω (stereo), 4000W into 8Ω (mono)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.05%
Damping factor: 1000
Input sensitivity: 1.4V
Signal to noise ratio: 105dB
Speaker load impedance: 2Ω to 16Ω
Dimensions: 19 x 5.25 x 16 inches
Weight: 77lbs