QSC III Series, Техническое и сервисное руководство

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5
Product Specifications
Model 3200
OUTPUT POWER (per channel)
Continuous Average Output Power both channels
driven:
8 ohms,
20 Hz-20 kHz 0.1% THD 110 W
1 kHz 1% THD 135 W
4 ohms, 20 Hz-20 kHz 0.1% THD 140 W
1 kHz 1% THD 200 W
2 ohms,
1 kHz 1% THD NR
Bridged Mono operation:
16 ohms,
20 Hz-20 kHz 0.1% THD 220 W
1 kHz 1% THD 270 W
8 ohms,
20 Hz-20 kHz 0.1% THD 280 W
1 kHz 1% THD 400 W
4 ohms,
1 kHz 1% THD NR
Distortion: THD – 20 Hz-20 kHz from 250 milliwatts to rated
power shall be less than 0.1%, 0.015% typical. SMPTE-IMD less
than 0.020% 250 milliwatts to rated power.
Frequency Response:
20 Hz-10 kHz
±
0.1 dB
8 Hz-300 kHz +0/-3 dB
Damping Factor:
Greater than 200
Dynamic Headroom:
3.0 dB at 8
Ω
Noise:
-100 dB 20 Hz-20 kHz
Sensitivity:
1V RMS for rated power (8
Ω)
Input Impedance:
20 k
Ω
Controls:
Front – Flush detented gain control, recessed
AC switch and AC circuit breaker for each
channel.
Rear – Mono-bridging and accessory module
switches.
Indicators:
Bi-color LED indicating DC power –
OK/Protect mode, LED clip indicator, -30 dB
and -6 dB signal level indicators, flashing over-
temp indicators.
Connectors:
XLR, ¼” (ring, tip, sleeve) and 3 terminal
barrier strip inputs wired in parallel, 2-terminal
barrier strip and 5-way binding post outputs
wired in parallel, octal input sockets provided
for input transformers or active accessories,
ground lift terminal block.
Cooling:
Passive cooling combined with high efficiency
output stage for reduced operating
temperatures. Unique circuit configuration
allows direct metal mounting of output devices
for reduced thermal stress from short-term
peaks.
Amplifier Protection: Indefinite short circuit*, open circuit,
over-temp, ultrasonic and RF protection.
Stable into reactive and mismatched loads.
Inputs protected from overload. All protection
completely independent on each channel.
* Output Averaging

short circuit protection
(U.S. Pat. 4,321.554)
Load Protection:
Individual channel Load Grounding

output relays provide DC Fault, 3 second
delayed turn on (transient protection), and
excessive low frequency protection, Instant
turn-off, pop suppression and power interrupt
protection is also provided.
Output Circuit Type:
Full complementary two-level high
efficiency.
Output Devices (total): 8
Power Supply:
Two completely separate power supplies
including AC switches and AC circuit breakers;
only AC cord is common.
Power Requirements:
120 Volts, 60 Hz, 4.4 A
Dimensions:
Faceplate 19” × 1.75”
Depth (behind mtg,
with rear support) 16.5”
Depth (chassis) 14.6”
Weight:
Shipping (lbs.) 31
Net (lbs.) 26