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 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" 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:
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.
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.
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
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 warranty plus optional 3-year extended service contract
Congratulations on the purchase of your QSC RMX, PLX, and/or PL2 series amplifier(s). Your product is already covered by our 3-year, Limited Warranty. However, for a limited time, by simply registering your product online, we will upgrade your warranty to our 6-Year Full Warranty (a $99 value) at no charge. Registration is easy and allows us to provide the highest level of service to our customers. By registering for this promotion, you will be providing certain information to QSC including information about yourself, the products you use and how you use them. Your information will never be distributed or sold to any other party. Click here to register your product or to learn more about the warranty
Free 6-Year Extended Warranty Upgrade
Available for GX, RMX, PLX, PLX2 and PL2 series amplifiers and HPR series powered loudspeakers. Click here to register your product or to learn more about the warranty
By simply registering your product online, we will upgrade your warranty to our 6-Year Extended Warranty (a $99 value) at no charge.
All you need to do is provide certain information to QSC including information about yourself, the products you use and how you use them.
Your information will never be distributed or sold to any other party.
QSC RMX1450 Specs
RMX SPECIFICATIONS
RMX 850
RMX 1450
RMX 1850HD
RMX 2450
STEREO MODE, EIA: Both Channels Driven
8 ohms EIA 1 kHz, 0.1% THD
200W
280W
360W
500W
4 ohms EIA 1 kHz, 0.1% THD
300W
450W
600W
750W
2 ohms EIA 1 kHz, 1% THD
430W
700W
900W
1200W
BRIDGE MONO MODE
8 ohms EIA 1 kHz, 0.1% THD
600W
900W
1200W
1500W
4 ohms EIA 1 kHz, 1% THD
830W
1400W
1800W
2400W
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 ohms
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 ohms *
5 A
6 A
6 A
7 A
Weight
35 lb (15.9 kg) net
40 lb (18.2 kg) net
44.5 lb (20.2 kg) net
44.5 lb (20.2 kg) net
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, +/- 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 (+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)
Dimensions
19" (48.3 cm) rack mounting, 3.5" (8.9 cm) tall (2 rack spaces), 15.9" (40 cm) deep (rack mounting to rear support ears)
Power Requirements
100, 120, 230 VAC, 50-60 Hz
* @ 120VAC, both channels driven; multiply current by .5 for 230V units
All Specification Subject to Change Without Notice.
QSC RMX1850HD
RATING:
Sound Quality
10
Features
10
Ease Of Use
10
Value
10
Reliability
10
Overall
10
i havent herd or ownde a amp that can be pushed so far. with clip limiters you can eliminate distortion even with heavy clipping. i run 4 15's and 2 12's and it kicks. it has hit you in the chest bass with warm mids andcristal clea highs. the rmx 1450 will blow away the crown ce 1000 and even the ce 2000.
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