QSC USA Series, Руководство пользователя

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USA 400 USA 900 USA 1310
OUTPUT POWER * both channels driven
FTC: 20 Hz-20 kHz @ 0.1% THD
8
Ω
per channel 110 240 375
EIA:
1
kHz @ 1% THD
8
Ω
per channel 125 270 400
4
Ω
per channel 200 450 655
2
Ω
per channel 250 550 1000
Bridged Mono:
16
Ω
, 1 kHz, 1% THD 250 540 800
8
Ω
, 1 kHz, 1% THD 400 900 1310
* typical
DYNAMIC HEADROOM 1.9 dB at 4
Ω
DISTORTION
SMPTE-IM Less than 0.1%
FREQUENCY RESPONSE 20 Hz to 20 kHz, +0/-1 dB
-3 dB points: 8 Hz and 60 kHz
DAMPING FACTOR Greater than 200 at 8
Ω
NOISE , below rated output 105 dB 104 dB 106 dB
(A Weighted)
VOLTAGE GAIN 29 dB 32 dB 34 dB
INPUT SENSITIVITY , V
RMS
1.12v 1.16v 1.13v
(for rated power into 8 ohms)
INPUT IMPEDANCE 10K
Ω
unbalanced
20K
Ω
balanced
CONTROLS Front: AC Switch
Rear: Stereo/Bridge Switch, Ch. 1 and Ch. 2 Gain Knobs
INDICATORS POWER: Green LED (USA 1310: 1 per channel)
CLIP: Red 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
COOLING Convection Two-speed fan Two-speed fan
S P E C I F I C AT I O N S S P É C I F I C AT I O N S ESPECIFICACIONES TECHNISCHE DATEN
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