21
PowerLight 3.4 PowerLight 4.0 PowerLight 3.8
X
OUTPUT POWER
FTC: 20 Hz–20 kHz @ 0.1% THD,
both channels driven
8Ω per channel 725 900 900 (Ch. 1), 450 (Ch. 2)
4Ω per channel 1200 1400 1400 (Ch. 1), 800 (Ch. 2)
EIA: 1 kHz @ 1% THD
8Ω per channel 800 1000 1000 (Ch. 1), 500 (Ch. 2)
4Ω per channel 1250 1600 1500 (Ch. 1), 850 (Ch. 2)
2Ω per channel 1700 2000 2500 (Ch. 1), 1500 (Ch. 2)
Bridged Mono:
8Ω, 20 Hz–20 kHz, 0.1% THD 2400 2800 n/a
4Ω, 1 kHz, 1% THD 3400 4000 n/a
DYNAMIC HEADROOM 1.9 dB at 4Ω 1.9 dB at 4Ω 1.9 dB at 4Ω
DISTORTION
SMPTE-IM Less than 0.05%
FREQUENCY RESPONSE 20 Hz to 20 kHz, ±0.15 dB
(at 10 dB below rated output power) 5 Hz to 60 kHz, +0/-3 dB
DAMPING FACTOR Greater than 500
NOISE (unweighted) 105 dB below rated output (20 Hz to 20 kHz)
VOLTAGE GAIN 80× (38 dB) 80× (38 dB) 80× (38 dB) (Channel 1)
49× (34 dB) (Channel 2)
INPUT SENSITIVITY, V
RMS
0.95v (+1.8 dBu) 1.06v (+2.7 dBu) 1.06v (+2.7 dBu) (Channel 1)
(for rated power into 8 ohms) 1.22v (+4.0 dBu) (Channel 2)
INPUT IMPEDANCE 10 kΩ unbalanced
20 kΩ balanced
CONTROLS Front: AC switch, Ch. 1 and Ch. 2 gain knobs, Ch. 1 and Ch. 2 clip limiter switches
Rear: Parallel/Stereo/Bridge switch
(except PowerLight 3.8
X
)
, remote power supply enable terminals
INDICATORS PROTECT: Red LED CLIP: Red LED, 1 per channel
STANDBY: Yellow LED -10 dB: Yellow LED, 1 per channel
POWER: Green LED -20 dB: Yellow LED, 1 per channel
SIGNAL: Green LED, 1 per channel
CONNECTORS Input: Barrier strip and Neutrik “Combo” XLR and
1/4" (6.3 mm) TRS, tip and pin 2 positive
Output: “Touch-Proof” binding posts
Data Port: HD 15 female connector for QSC MultiSignal Processor
COOLING Continuously variable speed fan, back-to-front air flow
TECHNISCHE DATEN ESPECIFICACIONESSPECIFICATIONS SPÉ CIFICATIONS