QSC Audio 3 Series Stereo Amplifier User Manual


 
www.qscaudio.com
Phone: 1-800-854-4079 or 714-957-7100, Outside the U.S. 714-754-6175 / Fax: 714-754-6174
1675 MacArthur Boulevard, Costa Mesa, CA 92626
090407 ©2007 QSC Audio Products, Inc.
QSC, the QSC logo, PowerLight, QSControl.net and BASIS are registered trademarks of QSC Audio Products Inc. in the U.S. Patent and Trademark office and other countries.
Speakon is a registered trademark of Neutrik. All other trademarks are the property of their respective owners.
SPECIFICATIONS PL325 PL340 PL380
Stereo Mode (both channels driven)
8 / EIA 1 kHz / 1% THD
4 / EIA 1 kHz / 1% THD
2 / EIA 1 kHz / 1% THD
500 W
850 W
1250 W
800 W
1250 W
2000 W
1500 W
2500 W
4000 W*
Bridge Mono Mode
8 / EIA 1 kHz / 1% THD
4 / EIA 1 kHz / 1% THD
1700 W
2500 W
2600 W
4000 W
5000 W
8000 W*
Typical Distortion
(20 Hz - 3 kHz, 3dB below clip, or 20 Hz -
5 kHz, 10 dB below clip, or 20 Hz - 20 kHz,
20 dB below clip)
8
4
2
0.002 - 0.01%
0.005 - 0.01%
0.02%
0.002 - 0.01%
0.005 - 0.01%
0.02%
0.01 - 0.03%
0.03 - 0.06%
0.1%
Maximum Distortion
(20 Hz - 20 kHz, 1 dB below rated power)
4 - 8
0.05%
0.05%
0.2%
Frequency Response (8 Ω) 20 Hz - 20 kHz, +/-0.2 dB 20 Hz - 20 kHz, +/-0.2 dB 20 Hz - 20 kHz, +/-0.2 dB
Noise (20 Hz - 20 kHz, 32 dB Gain) -106 dB -105 dB -104 dB
Dynamic Headroom (4 Ω) 2 dB 2 dB 2 dB
Damping Factor (8 Ω) 500 500 200
Output Circuitry Class H (2-tier) Class H (2-tier) Class D
Input Sensitivity
(26 dB Setting)
(32 dB Setting)
3.28 V
1.60 V
3.92 V
1.96 V
5.27 V
2.67 V
Input Gain (1.2 V Setting) 34.5 dB 36.4 dB 39.1 dB
Input Impedance (Ω) >10k, balanced or unbalanced >10k, balanced or unbalanced >10k, balanced or unbalanced
Maximum Input Level
(1.2 V Setting)
(32 dB Setting)
(26 dB Setting)
11 V (+23 dB)
14.6 V (+25.5 dB)
25 V (+30 dB)
11 V (+23 dB)
18 V (+27.4 dB)
25 V (+30 dB)
10 V (+22 dB)
22 V (+29 dB)
25 V (+30 dB)
Controls and LEDs - Front Panel Common: AC Power Switch, Power (Blue), Br Mono (Yellow), Par (Orange)
Each Channel: Signal -35 dB, -20 dB (Green), -10 dB (Orange), Clip/Prot (Red), Gain Control, 21 detents, 1 dB steps
Controls and LEDs - Rear Panel Common: Input Mode: Parallel (Orange), Stereo (Green), Br Mono (Yellow) Sensitivity: 26 dB (Orange), 32 dB (Green), 1.2 V (Yellow)
Each Channel: LF Filter: Off, 30 Hz (Yellow), 50 Hz (Orange) Clip Limit: Off, On (Yellow)
Input Connectors Common: HD-15 DataPort (inputs wired in parallel with XLR)
Each Channel: Male XLR, Female XLR, 3-pin terminal block connector
Output Connectors Each Channel: 5-way Binding Posts, Neutrik Speakon
®
, (Both Ch 1 and Ch 2 amp outlets available on Ch1 Speakon
®
)
Amplifier and Load Protection Short circuit, open circuit, thermal, RF protection. On/off muting, DC fault shutdown, active inrush limiting
AC Power** / Cordset
120 V 50/60 Hz
230 V 50 Hz
8.5 A / NEMA-15
7.5 A / Euro 16 A
12 A / NEMA-15
7 A / Euro 16 A
18 A / 30 A Twist-Loc
11 A / Euro 16 A
Dimensions (HWD) Height: 3.5" (8.9 cm) 2 RU / Width: 19" (48.3 cm) / Depth: 15.63" (39.7 cm) from front mounting rails
Weight - Net / Shipping 22 lb (10 kg) / 31.5 lb (14.3 kg) 22 lb (10 kg) / 31.5 lb (14.3 kg) 24 lb (11 kg) / 33.5 lb (15.2 kg)
U. S. Patent no. 5767744 and patents pending
* Burst mode testing required due to AC service current limitations
** Representative of current draw with typical music program material with occasional clipping
All specifications are subject to change without notice.