รายละเอียดย่อ :
Lightweight Power Amplifier
รายละเอียดทั้งหมด :
QSC PLX1804 Lightweight 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 |
PLX1804 |
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% |
| PHYSICAL |
Dimensions
Height
Width
Depth, Rack mounting surface to rear panel
Overall Depth |
3.5" (8.9 cm) 2 rack spaces
19" (48.3 cm)
8.95" (22.7 cm)
11" (27.9 cm) |
| Weight |
13 lbs. (5.9 kg) net
18 lbs. (8.2 kg) shipping |
| Agency Approvals |
CE, FCC, cUL, UL |
* CE versions may have up to 12% (0.5 dBw) less power due to special construction to meet EN-61000 AC harmonic limits
| CURRENT CONSUMPTION |
PLX1804 |
| 1/8 Power (pink noise) |
8 ohms
4 ohms |
5.7A/120V
9.4A / 120V |
| 1/3 Power (pink noise) |
8 ohms
4 ohms |
10.4A/120V
16.5A / 120V |
| Full Power |
8 ohms
4 ohms |
20A/120V
32A / 120V |
| Notes |
Long term, breaker-limited to 15A/120V |
|
