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QSC RMX Series |
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The RMX Series
amplifiers offer great reliability, and rugged construction, while
giving a clean and powerful QSC sound. The RMX Series is
also very affordable which has made them one of the best selling
lines in QSC history.
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
- 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 warranty plus
optional 3-year extended service contract
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RMX
SPECIFICATIONS
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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
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| All
Specification Subject to Change Without Notice. |
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