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QSC RMX 1450

1400W, 2 Channel Power Amplifier

QSC
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2 Channel Power Amplifier • 1400 Watts • Independent Defeatable Clip Limiters • Barrier Strip, XLR and 1/4" Balanced Inputs • Independent DC and Thermal Overload Protection

Learn more about the rmx1450

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Description


True Studio Quality Sound

The RMX Series amplifiers give you clean, dynamic power with the legendary QSC sound quality and reliability that pros depend on. The RMX Series deliver unmatched performance at a breakthrough price.

Muscular Power Plant

The power supply is the heart of an amplifier, converting raw AC power from the wall to clean DC for the audio circuitry. The RMX uses a powerful high-current toroidal transformer and ample filter capacitance to ensure generous energy reserves. This makes a critical difference in sound quality, allowing the amp to effortlessly punch out high level transients, even when driving abusive 2 ohm speaker loads.

Superior Performance

RMX amplifiers deliver true studio-quality sound. A full complementary output circuit using the highest-grade linear output devices delivers ultra-low distortion (<0.05% THD) and a ruler-flat frequency response. SMT (Surface Mount Technology) triples small-signal component density, enabling us to pack up to 2400 watts of power in a chassis only 2 rack spaces and less than 16" deep. And unlike other designs, RMX output devices are direct-mounted to the heat sink for optimum thermal coupling and cooling.

Proven Reliability:

With over 30 years of building amplifiers for the largest touring companies and venues around the world, you can count on QSC's reputation for designing the most reliable amps available.

Comprehensive Features:
  • The RMX Series is packed full of professional features that increase performance and flexibility:
  • The RMX 1850HD provides improved thermal performance that gives you higher continuous power in 2 ohm stereo or 4 ohm bridged applications (a RMX 1850HD exclusive!)
  • Independent defeatable clip limiters reduce distortion without sacrificing peak performance
  • Selectable low-frequency filters boost system response, protect speakers and ensure low-end tightness by more precisely matching the amplifier's range to the loudspeakers
  • Barrier strip, XLR and 1/4" balanced inputs plus Speakon and binding post outputs provide easy connections
  • Low-noise variable speed fans with rear-to-front air flow keep amplifiers and racks cool
General Features:
  • Compact size - up to 2400 watts in 2 rack spaces
  • Professional quality performance - incorporates road-proven QSC designs
  • High-current toroidal transformers for greater two-ohm power and low noise
  • Independent user-defeatable clip limiters reduce distortion
  • Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom
  • Balanced 1/4" (6.3mm) TRS, XLR and barrier strip inputs
  • Binding post and Neutrik Speakon outputs
  • Front mounted gain controls for easy access
  • Signal and Clip LED indicators to monitor performance
  • Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers
  • 3-year Manufacturer's warranty
 
SPECIFICATIONS
RMX 850 RMX 1450 RMX 1850HD RMX 2450
  STEREO MODE (Both Channels Driven)
8 ohm
  FTC 20 Hz - 20 kHz, 0.1% THD
  EIA 1 kHz, 0.1% THD

185 W
200 W

260 W
280 W

350 W
360 W

450 W
500 W
4 ohm
  FTC 20 Hz - 20 kHz, 0.1% THD
  EIA 1 kHz, 0.1% THD

280 W
300 W

400 W
450 W

550 W
600 W

650 W
750 W
2 ohm
   EIA 1 kHz, 1% THD

430 W

700 W

900 W

1200 W
  BRIDGE MONO MODE
8 ohm
  FTC 20 Hz - 20 kHz, 0.1% THD
  EIA 1 kHz, 0.1% THD

530 W
600 W

800 W
900 W

1100 W
1200 W

1300 W
1500 W
4 ohm
   EIA 1 kHz, 1% THD

830 W

1400 W

1800 W

2400 W
Signal to Noise, 20 Hz-20 kHz 100 dB 100 dB 100 dB 100 dB
Distortion (SMPTE-IM) Less than 0.01% Less than 0.01% Less than 0.02% Less than 0.02%
Input Sensitivity @ 8 ohm 1.15V (+3.4 dBu) 1.15V (+3.4 dBu) 1.16V (+3.5 dBu) 1.23V (+4.0 dBu)
Voltage Gain 31.6x (30 dB) 40x (32 dB) 46x (33 dB) 50x (34 dB)
Output Circuitry AB AB Class H Class H
Power Requirements
1/8 power pink noise at 4 ohm *
5A 6A 6A 7A
  ALL MODELS
Distortion (Typical)
  20 Hz - 20 kHz: 10 dB below rated power
  1.0 kHz and below: full rated power

Less than 0.03% THD, 4 and 8 ohm
Less than 0.03% THD, 4 and 8 ohm
Frequency Response 20 Hz-20 kHz, ±1 dB
-3 dB points: 5 Hz - 50 kHz
Damping Factor, 1 kHz and below Greater than 300 at 8 ohm
Input Impedance 10k ohm unbalanced, 20k ohm balanced
Input Clipping 10 Vrms (+22 dB)
Cooling Continuously variable-speed fan, rear-to-front air flow
Connectors, each channel Input: Active balanced; barrier strip, XLR and 1/4" (6.3mm)
TRS tip and XLR (pin 2 positive)
Output: touch-proof binding posts and Neutrik® Speakon®
Controls Front: AC switch, Ch. 1 and Ch. 2 gain knobs
Rear: 10-position DIP switch
Indicators Power-On: Green LED
Signal: Yellow LED (1 per channel)
Clip: Red LED (1 per channel)
Amplifier Protection Stable into reactive or mismatched loads
Load Protection On/off muting, AC coupling (850, 1450), triac crowbar (1850HD, 2450, on each channel)
Power Requirements 100, 120, 230 VAC, 50-60 Hz
Dimensions 19" (48.3 cm) rack mounting, 3.5" (8.9 cm) tall (2 RU),
15.9" (40 cm) deep (rack mounting to rear support ears)
Weight 35 lbs (15.9 kg) net 40 lbs (18.2 kg) net 44.5 lbs (20.2 kg) net 44.5 lbs (20.2 kg) net

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Specifications & Details


Power Specifications
Number of Channels
2 Channels
Continuous Power @ 8 ohm
280 watts x 2 channel
Continuous Power @ 4 ohm
450 watts x 2 channel
Continuous Power @ 2 ohm
700 watts x 2 channel
Continuous Power @ 8 ohm (Bridged)
900 watts x 1 channel
Continuous Power @ 4 ohm (Bridged)
1400 watts x 1 channel
Total Continuous Power
1400 watts
Amplifier Specifications
Amplifier Class
A/B
Signal-to-Noise Ratio
100 dB
Frequency Response
20 - 20000 Hz
THD (Total Harmonic Distortion)
0.01%
Voltage Gain
32 dB
Cooling Options
Cooling Fan
Inputs
1/4" TRS
Binding Posts
XLR
Outputs
Binding Posts (Banana Clip Ready)
SpeakOn
Physical Specifications
Height
3-1/2"
Width
19"
Depth
16"
Weight (Pounds)
35 lbs
Rackmount Spaces
2U
Warranty and Return Policy
Parts Warranty Duration
3 years
Labor Warranty Duration
3 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

QSC

Model Number:

RMX 1450

Weight:

25.00lbs

Internal SKU:

rmx1450

Internal Product ID:

32620

Customer Ratings & Reviews


QSC RMX 1450 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
4
Value
4
Features
5
Design
4
Usability
5

Customer Reviews

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A Very Good Amp

By ian on July 8, 2011

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