QSC Audio RMX 1450 Pro 1400 Watt Power Amplifier Rackmount Used

QSC Audio RMX 1450 Pro 1400 Watt Power Amplifier Rackmount Used

Used with wear associated with use. Minor cosmetic scratches/scuffs from handling and play. Noteworthy blemishes or issues will be described and pictured. Works as it should.

There are scratches & scuffing on all sides. Please see pictures for details.

Watts per channel:
280 (8ohms)
450 (4ohms)
700 (2ohms)
1400 (Bridged 4ohms)

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 ohms stereo or 4 ohms 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

SPECIFICATIONS:

STEREO MODE (Both Channels Driven)

8 ohms
FTC 20 Hz - 20 kHz, 0.1% THD 260 W
EIA 1 kHz, 0.1% THD 280 W

4 ohms
FTC 20 Hz - 20 kHz, 0.1% THD 400 W
EIA 1 kHz, 0.1% THD 450 W

2 ohms
EIA 1 kHz, 1% THD 700 W BRIDGE MONO MODE

8 ohms
FTC 20 Hz - 20 kHz, 0.1% THD 800 W
EIA 1 kHz, 0.1% THD 900 W

4 ohms
EIA 1 kHz, 1% THD 1400 W

Signal to Noise, 20 Hz-20 kHz 100 db

Distortion (SMPTE-IM) 1.15V (+3.4 dBu)

Voltage Gain 40x (32 dB)

Output Circuitry AB

Power Requirements
1/8 power pink noise at 4 ohms * 6A

Distortion (Typical)
20 Hz - 20 kHz: 10 dB below rated power Less than 0.03% THD, 4 and 8 ohms
1.0 kHz and below: full rated power Less than 0.03% THD, 4 and 8 ohms

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 ohms

Input Impedance
10k ohms unbalanced, 20k ohms 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: 36lbs

FEATURES & SPECS

Power Specifications:
Number of Channels 2 Channels
Continuous Power @ 8 ohm 280 watts x 2 channels
Continuous Power @ 4 ohm 450 watts x 2 channels
Continuous Power @ 2 ohm 700 watts x 2 channels
Continuous Power @ 8 ohm (Bridged) 900 watts x 1 channels
Continuous Power @ 4 ohm (Bridged) 1400 watts x 1 channels
Total Continuous Power 1400 watts

Amplifier Specifications
Amplifier Class AB
Signal-to-Noise Ratio 100 dB
Frequency Response 20 - 20000 Hz
Input Sensitivity 1.15 volts
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) 36 lbs
Rackmount Spaces 2U

We ship orders the following business day!

We are open Monday - Friday 9:00 AM to 5:00 PM Eastern Standard Time

We respond to questions during regular business hours