Name: QSC RMX 1850HD
Brand: QSC
SKU: rmx1850hd
Price: 534.99 USD
Availability: Discontinued

by QSC

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Product highlights

2 Channel Power Amplifier • 1800 Watts • Independent Defeatable Clip Limiters • Barrier Strip, XLR and 1/4" Balanced Inputs • Independent DC and Thermal Overload Protection

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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

360 watts x 2 channel

Continuous Power @ 4 ohm

600 watts x 2 channel

Continuous Power @ 2 ohm

900 watts x 2 channel

Continuous Power @ 8 ohm (Bridged)

1200 watts x 1 channel

Continuous Power @ 4 ohm (Bridged)

1800 watts x 1 channel

Total Continuous Power

1800 watts

Amplifier Specifications

Amplifier Class

Signal-to-Noise Ratio

100 dB

Frequency Response

20 - 20000 Hz

THD (Total Harmonic Distortion)

0.02%

Voltage Gain

33 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

Warranty and Return Policy

Parts Warranty Duration

3 years

Labor Warranty Duration

3 years

Warranty Provider

Manufacturer

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QSC RMX 1850HD

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Welcome to the Team!

QSC RMX 1850HD

We apologize

This item has been discontinued

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