รายละเอียดย่อ :
Lightweight Power Amplifier
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QSC PLX1802 Lightweight Power Amplifier
The PLX2 series is a range of premium quality, high-power amplifiers designed for the most demanding live performance uses. Built on the third generation of QSC PowerLight technology, PLX2 amplifiers combine light weight, superlative audio quality and proven QSC reliability.
The PLX1802 is an excellent choice for users who need to drive up to four loudspeakers from each amplifier channel (2 ohm loading), or when extremely high power bridge mono operation is required. The PLX1802 features built-in subwoofer processing, filter switches, and front panel indications of bridge mono status.
| SPECIFICATIONS |
PLX1802 |
| |
STEREO MODE, both channels driven * |
8 ohms
FTC 20 Hz - 20 kHz 0.05% THD
EIA 1 kHz 0.1% THD |
320 W
330 W |
4 ohms
FTC 20 Hz - 20 kHz 0.05% THD
EIA 1 kHz 0.1% THD |
525 W
575 W |
| 2 ohms EIA 1 kHz 1% THD |
900 W |
| |
BRIDGE MONO MODE * |
8 ohms
20 Hz-20 kHz 0.1% THD
EIA 1 kHz 0.1% THD |
1100 W
1200 W |
| 4 ohms 1 kHz 1% THD |
1800 W |
| |
|
| Signal to Noise (20 Hz - 20 kHz) |
-107 dB |
| Input Sensitivity @ 8 ohms |
1.28 Vrms |
| Gain @ 8 ohms |
32 dB |
| Output Circuitry |
AB |
| 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 500 |
| Input Impedance |
20k ohms balanced
10k ohms unbalanced |
| Input Clipping |
11 Vrms (+21 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® and Touch-proof binding posts
(Both channels available on Ch 1 NL4 connector) |
| Rear Panel Switches |
Input Configuration: Bridge/Stereo/Parallel
Clip Limiters each channel
Filters (per channel): Top 100 Hz HPF/Full/Sub 100 Hz LPF & 33 Hz HPF/Full (infrasonic) |
| 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
Parallel: Amber LED
Bridge Mono: Amber 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, 5 Hz |
| DC fault |
Power supply shutdown |
| Ultrasonic |
-3 dB, 85 kHz |
| Short Circuit |
Cutback |
| Thermal |
Muting at 90° C |
| Over Current |
Active clip limiting
Power supply cutback |
| High Line |
Standard +15%, survive +25% |
| Low Line |
-33% |
| 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)
12.8" (32.6 cm)
14.875" (37.9 cm) |
| Weight |
21 lbs. (9.5 kg) net
26 lbs. (11.8 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 |
PLX1802 |
| 1/8 Power (pink noise) |
8 ohms
4 ohms
2 ohms |
5A/120V
8.7A / 120V
13A / 120V |
| 1/3 Power (pink noise) |
8 ohms
4 ohms
2 ohms |
7.7A/120V
12.3A / 120V
19.7A / 120V |
| Full Power |
8 ohms
4 ohms
2 ohms |
12.6A/120V
21.3A / 120V
33.2A / 120V |
| Notes |
Long term, active-limited to 25A/120V |
|
