This item is usually Drop Shipped from the MFR/Distributor within 3-7 days (subject to availability). Your order will be charged at the time of placing the order with the MFR
The QSC RMX 1850HD is a professional, moderately priced stereo power amplifier housed in a sturdy 2 RU rackmountable chassis, offering 360 Watts of output power at 8 Ohms, and over 1800 Watts at 4 Ohms bridged. This model is uniquely equipped with an improved thermal protection design that allows for higher continuous power, and therefore better output performance, at 2-Ohm stereo and 4-Ohm bridged applications.
The RMX 1850HD also offers independent and defeatable clip limiters, and efficient power reserves created by a high current toroidal transformer, resulting in improved and consistent high level transient response. The XLR , 1/4" TRS, and barrier strip connectors cover the standard input requirements, and the selectable 30 Hz and 50 Hz low frequency filters offer additional speaker protection and increased headroom. The outputs are on either barrier strips or the ever popular Speakon connectors.
The RMX 1850HD is packed with design features that contribute toward an excellent value for the budget-conscious but picky professional, and QSC is comfortable recommending the RMX series for studio monitoring or live sound system applications.
| Power Rating |
Rating @ 1 kHz, THD=0.1% 600W @ 4Ω Stereo (per channel) 360W @ 8Ω Stereo (per channel) 900W @ 2Ω Stereo (per channel) 1200W @ 8Ω Bridged-Mono 1800W @ 4Ω Bridged-Mono Rating @ 20 Hz - 20 kHz, THD=0.05% 550W @ 4Ω Stereo (per channel) 350W @ 8Ω Stereo (per channel) 1100W @ 8Ω Bridged-Mono |
| Damping Factor | >300 (@8 Ohms) |
| Input Sensitivity | 1.16 Vrms @8 Ohms |
| Input Impedance |
20 kOhms, balanced 10 kOhms, unbalanced |
| Gain | 33dB |
| Frequency Response | 20 Hz - 20 kHz, +/- 1dB |
| Signal-to-Noise Ratio | 100dB (20 Hz - 20 kHz) |
| Total Harmonic Distortion (THD) | <0.02% |
| Input Connections |
2 x XLR female, balanced 2 x 1/4" TRS phone, balanced 2 x barrier strips |
| Output Connectors |
2 x pair 5-way binding posts 2 x NL-4 Speakon |
| Controls Front Panel |
2 x rotary Level Control knobs 1 x Power switch |
| Controls (Rear) |
1 x Bridge/Stereo/Parallel Input Config. Switch 1 x Clip/Limiter switch 2 x Top 100 Hz HPF/Full/Sub 100 Hz LPF Filter switches 2 x 33 Hz HPF/Full (infrasonic) Filter switches |
| Indicators |
1 x green Power On LED 2 x yellow Signal LEDs 2 x red Clip LEDs |
| Camera Resolution | 1 x variable-speed fan (back-to-front airflow) |
| Power Consumption | 6 Amps (1/8 power pink noise @4 Ohms) |
| Power Requirements | 100-120VAC, 60Hz |
| Dimensions | 19 x 3.5 x 15.9" (483 x 89 x 404mm); 2U |
| Weight | 44.5 lbs (20.2 kg) |
| Specialties |
Detented Level Attenuators Comprehensive Protection Circuitry On/Off Muting, DC-fault Power Supply Shutdown |
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Comments about QSC RMX 1850HD 2-Channel Stereo Power Amplifier (360W/Channel at 8 Ohms):
I use this as a power amp for my bass guitar. Using a BBE-BMax preamp with the 1850HD Provides the right combination for my sound.
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