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QSC RMX1850HD Power AmplifierQSC RMX series amplifiers give 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. RMX amps have balanced XLR and 1/4" TRS inputs. Outputs include binding posts and Neutrik Speakon connections. These stereo power amps are only 2 rack spaces tall and 15.9" deep. Other features 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. QSC power amps are backed by a 3-year transferable warranty.
The QSC RMX1850HD Provides improved thermal performance for higher continuous power in 2-ohm stereo or 4-ohm bridged applications (a RMX 1850HD exclusive!). Specs include: 360W per channel @ 8 ohms, 600W/channel @ 4 ohms, 900W/channel @ 2 ohms, 1150W bridged mono @ 8 ohms and 1800W bridged mono @ 4 ohms. 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.
RMX Series Specifications
- 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: 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:
Full short circuit, open circuit, thermal, ultrasonic, and RF protection
Stable into reactive or mismatched loads
- Load Protection: On/off muting, AC coupling (850, 1450), triac crowbar (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 specifications subject to change.
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Price After Rebate
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Guaranteed Lowest Price
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Rate and Review this Product:
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| | 10 people wrote reviews | |
| | AMS Customer from USA | | Overall Ranking: | | Features:
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| | | Subject: | bullet proof work horse! | | Overall:
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QUALITY:
These things are bullet-proof. This is my third one. The first one is 5 years old and gets used 3 nights a week. It runs 4 mains and 4 monitors over a really loud metal band.
FEATURES:
The speakons are cool and it has everything else you need.
EASE OF USE:
how hard can it be? turn it on, turn up...
VALUE:
great bang for the buck and we definitely drive the wheels off these things...
SOUND:
it is very clean and has plenty of head room for bottom end punch.
STYLE:
Metal
MUSIC EXPERIENCE:
touring pro
OVERALL:
these things are good enough that we no longer have a backup. that's saying something considering we totally abuse these things. | |
| | AMS Customer from USA | | Overall Ranking: | | Quality:
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| | | Subject: | Great Amp! | | Overall:
| I bought this amp 6 month ago and let me tell you I am NOT disappointed at all!! A great amp at a fair price! Never had a problem with it!! | |
| | AMS Customer from USA | | Overall Ranking: | | Quality:
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| | | Subject: | QSC RMX 1850HD, An Affordable Workhorse! | | Overall:
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QUALITY:
QSC Quality! You open up the rack, plug it in, turn it on, it Rocks! I have had one for well over two years and it lives in my travel PA rack.
FEATURES:
Lots of good extras. Clip limiters and filters. A bit heavy for a two space amp.
EASE OF USE:
Easy to operate the same way every night. The push pin bank on the back is a bit tuff in low light and when in a hurry.
VALUE:
QSC Quality at a fairly affordable price. The lesser priced amps rarely measure up. Comparable priced amps, like Carvin & Crown, dont have the same features or appeal.
SOUND:
The sound is clear and natural, just the way it is supposed to be. | |
| | T. Bell from Rockville, Utah | | Overall Ranking: | | Features:
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| | | Subject: | QSC RMX 1850 Great Amp | | Quality:
| Made like a tank. I use two for subs. | | Features:
| Great features, switch options on the back let me configure the amps quickly for different setups. | | Ease of Use:
| Plug em in, turn em on, turn em up. | | Sound:
| I use it for subs only and they do the job nicely. | |
| | Dee from South Beach, OR | | Overall Ranking: | | Value:
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| | | Subject: | QSC RMX 1850HD packs a punch! | | Overall:
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QUALITY:
Very well made, in perfect condition and packing is good.
FEATURES:
Variety of input and output choices are very handy. The Speakon outputs are a blessing.
EASE OF USE:
No problems at all, manual was very complete.
VALUE:
Great price for a top quality amp.
SOUND:
Sound quality is neutral, just the way it should be. |
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