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" 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" 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.
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RMX
SPECIFICATIONS |
RMX
850 |
RMX
1450 |
RMX
2450 |
Stereo Mode (EIA: both
channels driven) |
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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 |
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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) |
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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" (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, & 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" (48.3cm) 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 |
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