American Musical Supply
American Musical Supply
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QSC RMX1450 Power Amplifier

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Product Description

The QSC RMX1450 Power Amplifier gives you clean, dynamic power with QSC's legendary sound quality and reliability that pros depend on. QSC combined their rugged, high-output designs with the latest circuit technology to deliver unmatched performance at a new breakthrough price.

The RMX1450 power amp has balanced XLR and 1/4 inch TRS inputs. Outputs include binding posts and Neutrik Speakon connections. These stereo power amps are only 2 rack spaces tall and 15.9 inches deep. Other features of the RMX1450 include ultra low distortion (.05% THD), a low-noise variable speed fan with rear-to-front air flow to keep your amplifier and racks cool, and selectable low-frequency filters to protect your speakers and increase headroom. The QSC RMX1450 Power Amplifier is backed by a 3-year transferable warranty.

Purchase an RMX Series Amplifier from AMS and Recieve QSC's
QSC 6 Year Extended Warranty
after registering your product at QSC.com

The new RMX Series amplifiers give you clean, dynamic power with the legendary QSC sound quality and reliability that pros depend on. We combined our rugged high output designs with the latest circuit technology to deliver unmatched performance at a new 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) & 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 & less than 16 inches deep. And unlike other designs, RMX output devices are direct-mounted to the heat sink for optimum thermal coupling & cooling.

Comprehensive Features
The RMX Series is packed full of professional features that increase performance and flexibility:
  • 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 inch 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.


Product Specifications
RMX SPECIFICATIONS

RMX SPECIFICATIONS

RMX 850

RMX 1450

RMX 2450

Stereo Mode (EIA: both channels driven)

     

8 ohms EIA 1 kHz 0.1% THD

200W

280W

500W

4 ohms EIA 1 kHz 0.1% THD

300W

450W

750W

2 ohms EIA 1 kHz 1% THD

430W

700W

1200W

Bridge Mono Mode

     

8 ohms EIA 1 kHz 0.1% THD

600W

900W

1500W

4 ohms EIA 1 kHz 1% THD

830W

1400W

2400W

Signal to Noise (20 Hz-20 kHz)

100 dB

100 dB

100 dB

Distortion (SMPTE-IM)

Less than 0.01%

Less than 0.01%

Less than 0.02%

Input Sensitivity @ 8 ohms

1.15v (+3.4 dBu)

1.15v (+3.4 dBu)

1.23v (+4.0 dBu)

Voltage Gain

31.6x (30 dB)

40x (32 dB)

50x (34 dB)

Output Circuitry

AB

AB

Class H

Current Consumption (1/8 power pink noise at 4 ohms @ 120VAC,
both channels driven; multiply current by .5 for 230V units.)

5A

7A

10A

Weight (Net)

35lb. (15.9 kg)

40lb. (18.2 kg)

44.5lb. (20.2 kg)

All Models

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 ohms
Less than 0.03% THD 4 and 8 ohms

Frequency Response

20 Hz-20 kHz, ± 0/-1 dB, -3 dB points: 5 Hz-50 kHz

Damping Factor (1 kHz and below)

Greater than 300 at 8 ohms

Input Impedance

10 K ohms unbalanced, 20 K ohms balanced

Input Clipping

10 Vrms (+22dBu)

Cooling

Continuously variable speed fan, rear-to-front air flow

Connectors (each channel)

Input: Active balanced; barrier strip, XLR and 1/4 inch (6.3 mm).
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

PWR-ON: Green LED SIGNAL: Yellow LED (1 per channel)
CLIP: Red LED (1 per channel)

Amplifier Protection

Full short circuit, open circuit, thermal, ultrasonic, and RF protection.
Stable into reactive or mismatched loads.

Load Protection

Turn-on/off muting, AC coupling (850, 1450), triac crowbar
(2450, on each channel)

Dimensions

19 inch (48.3cm) rack mounting, 3.5 inches (8.9 cm) tall (2 rack spaces),
15.9 inches (40 cm) deep (rack mounting to rear support ears)

Power Requirements

100, 120, 230 VAC, 50-60 Hz




Helpful Info about the Manufacturer
Phone:  800-772-2834 Warranty:  3 Years on New Amps; B-Stock is 1 (one) Year only!
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