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QSC PLX1804 Power Amplifier
The compact PLX1804 brings the same performance and technology as the rest of the PLX2 Series, plus even greater value, to applications that don't require bridged or 2 ohm operation. Designed to power one or two speakers from each amplifier channel (4 ohm minimum loading), this model offer a simplified feature set while retaining genuine, uncompromised PLX performance and technology. Weighing just 13 pounds (5.9 kg), the "plug-and-play" PLX1804 is perfect for ultra-portable rigs, as well as reference-quality playback.
| SPECIFICATIONS | |
| Stereo Mode 8 ohms (each channel) * FTC 20 Hz - 20 kHz 0.05% THD EIA 1 kHz 0.1% THD |
550 W 600 W |
| Stereo Mode 4 ohms (each channel) * FTC 20 Hz - 20 kHz 0.05% THD EIA 1 kHz 0.1% THD |
800 W 900 W |
| Signal to Noise (20 Hz - 20 kHz) | -106 dB |
| Input Sensitivity @ 8 ohms | 1.20 Vrms |
| Gain @ 8 ohms | 35 dB |
| Output Circuitry | 2-Tier Class H |
| Distortion (SMPTE-IM) | Less than 0.02% |
| Typical Distortion 1/8 rated power, 20 Hz-20 kHz Full rated power, 20 Hz-20 kHz |
Less than 0.02% Less than 0.02% |
| Frequency Response | 20 Hz-20 kHz, -0.5 dB |
| Damping Factor | Greater than 200 |
| Input Impedance | 20k ohms balanced 10k ohms unbalanced |
| Input Clipping | 5.5 Vrms (+15 dBu) |
| Cooling | Variable-speed fan, rear-to-front air flow |
| Input Connectors, each channel | 3-pin XLR and 1/4" TRS balanced |
| Output Connectors, each channel | Neutrik® NL4 Speakon® (Both channels available on Ch 1 output) |
| Rear Panel Switches | Circuit Breaker |
| Front Panel Controls | Detented Gain Attenuator: 0 to ∞ dB Power On/Off |
| Front Panel Indicators | Clip: Red LED -10: Green LED Signal (-35 dB): Green LED Power: Blue LED |
| PROTECTION | |
| Amplifier Protection | Full short circuit, open circuit, thermal, infrasonic, ultrasonic, and RF protection Stable into reactive or mismatched loads |
| Load Protection | On/off muting, DC-fault power supply shutdown |
| Infrasonic | -3 dB, 6 Hz |
| DC fault | Power supply shutdown |
| Ultrasonic | -3 dB, 80 kHz |
| Short Circuit | Muting |
| Thermal | Limiting at 85° C, Muting at 90° C |
| Over Current | Active clip limiting AC circuit breaker |
| High Line | Standard +15%, survive +25% |
| Low Line | -40% |
QSC