QSC CX302 2-Channel Series
Power Amplifier
The CX 2-Channel Series is designed to meet the specialized needs of
sound contractors. Five low impedance models and three 70 volt direct
models have been designed from the ground up, combining QSC's exclusive
PowerLightฎ technology with specific features to meet the requirements
of fixed installations. With high output power, versatile loading
options, high thermal capacity and reliability, the CX Series is the
ideal solution to any permanently installed sound system.
The expanded eight model line now incorporates QSC's exclusive
PowerLight technology. Three models, the CX302V, CX602V and CX1202V, add
direct 70 volt capability ranging from 250 watts to 1000 watts per
channel for distributed audio systems. The CX302, CX502, CX702, CX902
and CX1102 are low impedance versions ranging in power from 325 watts to
1100 watts per channel at 4 ohms (20 Hz -20 kHz, 0.05% THD).
The new CX amplifiers are equipped with many contractor specific
features including 1 dB detented gain controls for easily repeatable
settings and a custom security cover for tamper-proof installations.
Active inrush limiting eliminates AC inrush current, cutting the need
for power sequencers.
CX amplifiers also include an HD15 Data Port connector to interface with
QSControl, QSC's computer-controlled audio system, that allows remote
amplifier monitoring and control via a standard Ethernet network.
QSC CX302
FEATURES
- 8 models to meet your exact power requirements (five low
impedance models, three 70 volt direct models)
- Exclusive PowerLight switch-mode power supply technology for
high performance and compact size
- Custom integrated security cover for tamper proof installations
- Variable speed fan for low noise
- 1 dB detented gain controls for fast and accurate gain settings
- Active inrush limiting eliminates AC inrush current, removing
the need for expensive power sequencers
- XLR and detachable Euro style input connectors
- HD15 DataPort connector for QSControl computer control or signal
processing accessories
- Dip switch control for clip limiters, high pass filters, bridge
mono and parallel operation
- Selectable high pass filters protect speakers and prevent
speaker transformer saturation with minimal effect on program
material (33 Hz or 75 Hz on non-V models, 50 Hz or 75 Hz on V
models)
- Comprehensive front panel indicators including signal, clip,
protect and QSC's exclusive bridge mono and parallel input LEDs
- Barrier strip output connector
- Comprehensive protection circuitry including DC, infrasonic,
thermal overload and short circuit protection
- Class H complementary bipolar output circuitry for high
efficiency (CX702, CX902, CX1102 & CX1202V)
- Optional external transformer accessory pack for isolated 70 and
100 -volt outputs (converts CX302 to 400 watts per channel isolated
output)
- Compact size - all models are only 2 rack units high and 14"
deep for reduced rack cost and floor space
- Light weight - all models weigh only 21 pounds (9.5 kg) for
easier racking and shipping
- 3-year warranty plus optional 3-year extended service contract
- All CX Series amplifiers meet the European Union's, 2006 RoHS
directive to restrict the use of hazardous materials used in
electronic devices.
|
|
SPECIFICATIONS |
CX302 |
CX502 |
CX702 |
CX902 |
CX1102 |
CX302V |
CX602V |
CX1202V |
|
|
STEREO MODE, Both Channels Driven
|
|
8 ohms, 20 Hz-20 kHz, 0.05%
THD |
200 W
|
300 W
|
425 W
|
550 W
|
700 W
|
-
|
550 W
|
700 W
|
|
4 ohms, 20 Hz-20 kHz, 0.05%
THD |
325 W
|
500 W
|
700 W
|
900 W
|
1100 W
|
-
|
-
|
1100 W
|
|
2 ohms, 1 kHz, 1% THD |
600 W
|
800 W
|
1200 W
|
1500 W
|
1700 W
|
-
|
-
|
-
|
|
70V, 20 Hz-20 kHz, 0.05%
THD |
400 W
(with IT-42*) |
-
|
-
|
-
|
-
|
200 W
|
400 W
|
800 W
|
|
70V, 1 kHz, 0.05% THD |
- |
- |
- |
- |
- |
250 W
|
440 W
|
1000
W |
|
70V, 1 kHz, 1% THD |
- |
- |
- |
- |
- |
300 W
|
600 W
|
1200
W |
|
|
BRIDGED MONO MODE |
|
16 ohms, 20 Hz-20 kHz, 0.1%
THD |
400 W
|
600 W
|
850 W
|
1100 W
|
1400 W
|
-
|
1100 W
|
1400 W
|
|
8 ohms, 20 Hz-20 kHz, 0.1%
THD |
700 W
|
1100 W
|
1500 W
|
2000 W
|
2200 W
|
-
|
-
|
2200 W
|
|
4 ohms, 1 kHz, 1% THD
|
1200 W
|
1600 W
|
2400 W
|
3000 W
|
3400 W
|
-
|
-
|
-
|
|
140V, 20 Hz-20 kHz, 0.05%
THD |
-
|
-
|
-
|
-
|
-
|
400 W
|
800 W
|
1600 W
|
|
140V, 1 kHz, 0.05% THD |
-
|
-
|
-
|
-
|
-
|
500 W
|
880 W
|
2000 W
|
|
140V, 1 kHz, 1% THD |
-
|
-
|
-
|
-
|
-
|
600 W
|
1200 W
|
2400 W
|
|
Noise, 20 Hz-20 kHz |
>-107 dB
|
>-107 dB
|
>-106 dB
|
>-106 dB
|
>-106 dB
|
>-106 dB
|
>-106 dB
|
>-106 dB
|
|
Input Sensitivity @ 8 ohms |
1.26
Vrms |
1.23 Vrms
|
1.16 Vrms
|
1.17 Vrms
|
1.35 Vrms
|
1.26 Vrms
|
1.26 Vrms
|
1.26 Vrms
|
|
Voltage Gain @ 8 ohms |
30 dB |
32 dB
|
34 dB
|
35 dB
|
35 dB
|
35 dB
|
35 dB
|
35 dB
|
|
Output Circuitry |
AB+B |
AB+B |
H, 2-tier |
H, 2-tier |
H, 2-tier |
AB+B |
AB+B |
H, 2-tier |
|
|
ALL MODELS |
|
Distortion (SMPTE-IM) |
Less than
0.02% |
Distortion (Typical)
20 Hz-20 kHz: 10 dB below rated power
1.0 kHz and below: full rated power |
Less than 0.01% THD
Less than
0.01% THD |
|
Frequency Response |
20 Hz-20
kHz, +/- 0.2 dB |
|
Damping Factor |
Greater than 500
|
|
Input Impedance |
6k ohms unbalanced,
12k ohms balanced
|
|
Input Clipping |
10 Vrms (+22 dB)
|
|
Cooling |
Variable-speed fan,
rear-to-front air flow
|
Connectors, each channel
|
Input: 3-pin XLR &
3-pin detachable terminal blocks (1 each per channel)
Output: Safety-shrouded barrier strip
|
|
Amplifier Protection |
Full short circuit,
open circuit, thermal, ultrasonic, and RF protection.
Stable into reactive or mismatched loads.
|
|
Load Protection |
On/Off muting,
DC-fault power supply shutdown
|
Dimensions
|
19" (48.3 cm) wide,
3.5" (8.9 cm) tall (2 RU),
14" (35.6 cm) deep (from front mounting rails)
|
|
Weight |
21 lbs (9.5 kg) net
27 lbs (12.3 kg) shipping
|
| *
An isolation transformer (the
IT-42) is available for the CX302,
which converts its low-impedance outputs to isolated 400 W per channel
constant-voltage outputs. |
|
|
