QSC MX3000 power amplifier

The MX 3000a is a high power, low profile professional power amplifier with advanced features and a flexible input. It delivers tremendous power in only three rack spaces, providing high level performance under the most demanding conditions.
A stepped linear output circuit combines high power with high efficiency to provide greater average and dynamic audio performance, while
reducing normal system cooling and AC requirements by greater than 50%. An automatic variable speed fan matches cooling capacity with heat requirements.
The rear panel uses Level 1 of QSC’s exclusive Open Input Architecture™ which allows the use of optional input connectors, input transformers, cinema crossovers, power limiters, precision attenuators, and other signal processing cards as they become available.

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OUTPUT POWER (per channel)
8 ohms, 20 Hz to 20 kHz, 0.1% THD, 800 watts
8 ohms, 1kHz, 1% THD, 825 watts
4 ohms, 20 Hz to 20 kHz, 0.1% THD, 1200 watts
4 ohms, 1 kHz, 1% THD, 1250 watts
2 ohms, 1 kHz, 1% THD, 1600 watts*
OUTPUT POWER (bridged mono)
8 ohms, 20 Hz to 20 kHz, 0.1% THD, 2400 watts
4 ohms, 1 kHz, 1% THD 3200 watts*
*typical
DISTORTION:
SMPTE-IM, less than 0.05%
FREQUENCY RESPONSE:
20 Hz to 20 kHz, ±0.15 dB
8 Hz to 100 kHz, +0/-3 dB
DAMPING FACTOR:
Greater than 200
DYNAMIC HEADROOM: 3 dB at 4 ohms
NOISE: 100 dB below rated output (20 Hz to 20 kHz)
SENSITIVITY: 1.0 Vrms for rated power (8 ohms)
VOLTAGE GAIN: 80 (38 dB)
INPUT IMPEDANCE: 10K unbalanced, 20K balanced
CONTROLS:
Front: AC Switch, Ch 1 and Ch 2 Gain Knobs
Back: Parallel/Stereo/Bridge Switch
INDICATORS:
PWR-ON: Green LED
SIGNAL PRESENT: Yellow LED
CLIP: Red LED
PROT: Red LED
CONNECTORS: (each channel)
Input: Barrier strip and 1/4″ RTS
Speakers: “Touch proof” binding posts
COOLING: Variable speed fan, rear-to-front air flow.
AMPLIFIER PROTECTION:
Full short circuit†, open circuit, ultrasonic, and RF protection. Stable into reactive or mismatched
loads.
LOAD PROTECTION:
On/off muting. Clip limiting. DC-fault load grounding relay with internal fault fuses.
OUTPUT CIRCUIT TYPE:
Complementary linear outputs, 3 step high efficiency circuit.
POWER REQUIREMENTS: 100,120, 240 Vac, 50-60 Hz
POWER CONSUMPTION:
Normal Operation: 4 ohms per channel: less than 12 amps, 120 Vac (1440 VA) maximum (full power,
2 ohms per channel): 58 amps, 120 Vac (7000 VA)
DIMENSIONS:
19.0″ (48.3 cm) rack mounting
5.25″ (13.3 cm) tall (3 spaces)
17.9″ (45.5 cm) deep (rear support ears)
WEIGHT: 69 Ibs (31.2 kg) net, 77 Ibs (34.9 kg) shipping