RMX850
RMX1450
RMX1850HD
RMX2450
RMX4050HD
RMX5050
Stereo Mode (both channels driven)
Continuous average output power per channel
8
Ω
/ FTC 20 Hz - 20 kHz / 0.1% THD
185 W
260 W
350 W
450 W
800 (650**) W
1050 W
8
Ω
/ EIA 1 kHz / 0.1% THD
200 W
280 W
360 W
500 W
850 W
1100 W
4
Ω
/ FTC 20 Hz - 20 kHz / 0.1% THD
280 W
400 W
550 W
650 W
1300 W
1600 W
4
Ω
/ EIA 1 kHz / 0.1% THD
300 W
450 W
600 W
750 W
1400 W
1800 W
2
Ω
/ FTC 20 Hz - 20 kHz / 1% THD
−
−
−
−
1600 W
2000 W
2
Ω
/ EIA 1 kHz / 1% THD
430 W
700 W
900 W
1200 W
2000 W
2500 W
Bridge Mono Mode
Continuous average output power
8
Ω
/ FTC 20 Hz - 20 kHz / 0.1% THD
530 W
800 W
1100 W
1300 W
2600 W
3200 W
8
Ω
/ EIA 1 kHz / 0.1% THD
600 W
900 W
1200 W
1500 W
2800 W
3600 W
4
Ω
/ EIA 1 kHz / 1% THD
830 W
1400 W
1800 W
2400 W
4000 W
5000 W
Signal to Noise (20 Hz - 20 kHz) 8
Ω
> -100 dB
> -100 dB
> -100 dB
> -100 dB
> -100 dB
> -100 dB
Distortion (SMPTE-IM)
< 0.01%
< 0.01%
< 0.02%
< 0.02%
< 0.02%
< 0.02%
Input Sensitivity at 8
Ω
1.15V (+3.4 dBu)
1.15V (+3.4 dBu)
1.16V (+3.5 dBu)
1.23V (+4.0 dBu)
1.25V (+4.1 dBu)
1.42V (+5.3 dBu)
Voltage Gain
31.6x (30 dB)
40x (32 dB)
46x (33 dB)
50x (34 dB)
64x (36 dB)
64x (36 dB)
Output Circuitry
AB
AB
Class H, 2-tier
Class H, 2-tier
Class H, 3-tier
Class H, 3-tier
Power Requirements
Typical, 1/8 power pink noise at 4
Ω
*
4.5 A
6.0 A
6.1 A
6.3 A
10.0 A
13.9 A
Severe, 1/3 power pink noise at 4
Ω
*
6.6 A
9.6 A
11.2 A
15.6 A
20.1 A
26.9 A
Supplied Plug Type, 100/120V
NEMA 5-15
NEMA 5-15
NEMA 5-15
NEMA 5-15
NEMA 5-15
NEMA 5-20
Supplied Plug Type, 230V
CEE7/7
CEE7/7
CEE7/7
CEE7/7
CEE7/7
CEE7/7
Weight
Net
35 lbs (15.9 kg)
40 lbs (18.2 kg)
44.5 lbs (20.2 kg)
44.5 lbs (20.2 kg)
68 lbs (30.8 kg)
75 lbs (33.1 kg)
Shipping
41 lbs (18.6 kg)
46 lbs (20.9 kg)
50.5 lbs (23 kg)
50.5 lbs (23 kg)
77 lbs (34.9 kg)
87 lbs (37.2 kg)
Distortion (typical)
20 Hz - 20 kHz: 10 dB below rated power < 0.03% THD / 4
Ω
and 8
Ω
< 0.02% THD / 4
Ω
and 8
Ω
1.0 kHz and below: full rated power
< 0.03% THD / 4
Ω
and 8
Ω
< 0.02% THD / 4
Ω
and 8
Ω
Frequency Response
20 Hz - 20 kHz: +0/-1 dB -3 dB points: 5 Hz and 50 kHz (LF filter bybassed / 8
Ω)
Damping Factor (1 kHz and below)
> 300 at 8
Ω
> 250 at 8
Ω
Input Impedance
10k ohms unbalanced / 20k ohms balanced
Input Clipping
10 Vrms (+22 dBu)
6.4 Vrms (+18 dBu)
Cooling
Continuously variable speed fan, back-to-front air flow
Connectors (each channel)
Input: Active balanced / 3-pin Euro-style detachable terminal block and XLR (pin 2+)
Output: Touch-proof binding posts / Neutrik Speakon®
Controls
Front: AC switch / Ch. 1 & 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)
Protect: Red LED
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 (1850HD, 2450, 4050HD, 5050) on each channel
Dimensions
3.5" (8.9 cm) tall / 2 rack spaces
5.25" (13.3 cm) tall / 3 rack spaces
Power Requirements
100, 120, 230 VAC, 50 - 60 Hz (factory configured)
* at 120VAC, both channels driven; multiply current by .5 for 230V units
** CE Rating
RMX Series
Specifications
qscaudio.com
Specifications subject to change without notice.
1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174
RMX Spec Sheet 03/26/08
QSC and the QSC logo are registered trademarks of QSC Audio Products LLC in the U.S. Patent and Trademark office and other countries. Speakon is a trademark of Neutrik.
All other trademarks are the property of their respective owners. Patents may apply or be pending.