Qsc Mx700 Users Manual

MX700 to the manual 2d479b54-13dc-40a2-876e-59a96c7b2ee4

2015-02-05

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P R O F E S S I O N A L

P O W E R

A M P L I F I E R S

MX
QSC's award-winning MX/MXa Series amplifiers
combine ultra-clean audio performance and unsurpassed reliability while delivering maximum power
under the most demanding conditions. The MXa’s
achieve superior performance with high-efficiency
stepped linear output circuits,ensuring solid two-ohm
operation, night after night.They’re at home on tour
or in an installation rack; in a main or monitor system;
driving horns or pumping subwoofers.MX amplifiers
are trusted by leading touring companies and
venues around the world.

Stepped-linear output technology on MXa models reduce normal system cooling

MX Series Features

requirements and AC current draw by greater than 40%. The MX 2000a's and

• High-efficiency stepped linear outputs reduce amplifier cooling requirements

3000a's dual monaural construction boosts reliability by providing separate
power supplies for each channel. MXa rear panels feature our exclusive Level 1
Open Input Architecture, which allows the addition of input transformers,
crossovers, power limiters, precision attenuators, and other signal processing
accessories. An extensive set of protection features assure stable operation

and AC current draw by greater than 40%*

•

Independent power supplies on each channel for greater reliability
(dual monaural on MX 2000a & MX 3000a,split secondary on MX 700 & MX 1500a)

• Power transistors direct–mounted metal-to-metal to heatsink for superior
thermal performance

• Level 1 Open Input Architecture for cost–and space–saving signal processing accessories*
• Independent DC,subsonic,ultrasonic ,and thermal overload protection on each channel
automatically protect amplifier and speakers

and reliability, even under the harshest conditions.

• Patented Output Averaging short circuit protection
• Automatic two-speed fan matches cooling capacity to thermal requirements.
Rear-to-front air flow prevents rack overheating.

• 3-year warranty plus optional
3-year extended service contract

Model
MX

Watts per channel
8Ω
4Ω 2Ω*

700
1500a
2000a
3000a

150
350
450
800

20 Hz–20 kHz, 0.01% THD
*1 kHz, 1% THD

225
500
650
1200

350
750
1000
1600

• 1/4" TRS and barrier strip balanced inputs for low noise
• Comprehensive LED array monitors operation and performance
• "Touch-proof" binding post output connectors
• THX approved for cinema applications*
* Not included in the MX 700

1675 MacArthur Boulevard
Costa Mesa, CA 92626
Ph: 800/854-4079 or 714/957-7100
Fax: 714/754-6174
www.qscaudio.com

M X S P E C I F I C AT I O N S
Stereo Mode (both channels driven)
FTC 8 ohms 0.1% THD 20 Hz–20 kHz
4 ohms 0.1% THD 20 Hz–20 kHz
EIA 8 ohms
1% THD 1 kHz
4 ohms
1% THD 1 kHz
2 ohms (typical) 1% THD 1 kHz
Bridge Mono Mode
FTC 8 ohms 0.1% THD 20 Hz–20 kHz
EIA 4 ohms (Typical) 1% THD 1 kHz
Frequency Response (20 Hz–20 kHz)
Input Sensitivity (for full power @ 8 ohms)
Voltage Gain
Cooling (rear-to-front airflow)
Weight
Normal Operation at 4Ω/ch(120 VAC)
All models
Distortion (SMPTE-IM)
Damping Factor
Dynamic Headroom
Noise
Input Impedance
Controls
Indicators

Connectors (each channel)
Amplifier Protection
Load Protection

MX 700
All Others

Output Circuit Type
Power Requirements
Dimensions

MX 700
MX 1500a
MX 2000a , MX 3000a

*except on MX 700

MX 700
150W
225W
170W
270W
350W

MX 1500a

MX 2000a

Continuous Average Output Power Per Channel
350W
450W
500W
650W
400W
475W
600W
725W
750W
1000W
Bridge-Mono Mode Operation
1300W
1000W
2000W
1500W
±0.15 dB
±0.15 dB
1.05 Vrms
1.07 Vrms
50x (34 dB)
56x (35 dB)
2-Speed Fan
2-Speed Fan
42 lb (19.1 kg)
54 lb (24.4 kg)
Less than 10.5 A
Less than 12 A

450W
700W
±0.5 dB
0.96 Vrms
35x (31 dB)
2-Speed Fan
25 lb (11.3 kg)
Less than 3.7 A
All models
Less than 0.05%
greater than 200
3 dB at 4 ohms
100 dB below rated output
10 KΩ unbalanced, 20 KΩ balanced
Front: AC Switch, Ch 1 and Ch 2 gain knobs
Back: Parallel/Stereo/Bridge Switch*
POWER:
Green LED
SIGNAL:
Yellow LED, 1 per channel*
CLIP:
Red LED, 1 per channel
PROT:
Red LED, 1 per channel**

MX 3000a
800W
1200W
825W
1250W
1600W
2400W
3200W
+ 0.15 dB
1.0 Vrms
80x (38 dB)
Variable Fan
69 lb (31.2 kg)
Less than 12 A

Input: 1/4” TRS and Barrier strip
Speakers: Touch-proof binding posts
Full short circuit†, open circuit, ultrasonic, and RF protection. Stable into reactive or mismatched loads.
AC coupled output. 2-second turn on and instant off muting.
On/off muting. DC-fault load grounding relay with internal fault fuses.
Complementary linear outputs: Class AB on MX 700, 2-Step Class H on MX 1500a & 2000a
3-Step Class H on MX 3000a
100, 120, 230 VAC, 50-60 Hz
19” (48.3 cm) rack mounting, 3.5” (8.9 cm) tall (2 rack spaces), 12.0” (30.5 cm) deep
19” (48.3 cm) rack mounting, 3.5” (8.9 cm) tall (2 rack spaces), 17.9” (45.5 cm) deep
19” (48.3 cm) rack mounting, 5.25” (13.3 cm) tall (3 rack spaces), 17.9” (45.5 cm) deep

**MX 700 uses single clip/protect LED † Output AveragingTM short circuit protection (US Patent 4,321,554) Specifications subject to change without notice.

1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174 • www.qscaudio.com



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