QSC Audio 3 Series manual Specifications

SPECIFICATIONS		PL325	PL340	PL380
Stereo Mode (both channels driven)
8	Ω / EIA 1 kHz / 1% THD	500 W	800 W	1500 W
4	Ω / EIA 1 kHz / 1% THD	850 W
			1250 W	2500 W
2	Ω / EIA 1 kHz / 1% THD	1250 W
			2000 W	4000 W*
Bridge Mono Mode
8	Ω / EIA 1 kHz / 1% THD	1700 W	2600 W	5000 W
4	Ω / EIA 1 kHz / 1% THD	2500 W	4000 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	Ω	0.002 - 0.01%	0.002 - 0.01%	0.01 - 0.03%
4	Ω	0.005 - 0.01%	0.005 - 0.01%	0.03 - 0.06%
2	Ω	0.02%	0.02%	0.1%
Maximum Distortion
(20 Hz - 20 kHz, 1 dB below rated power)
4	- 8 Ω	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)		3.28 V	3.92 V	5.27 V
(32 dB Setting)		1.60 V	1.96 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)		11 V (+23 dB)	11 V (+23 dB)	10 V (+22 dB)
(32 dB Setting)		14.6 V (+25.5 dB)	18 V (+27.4 dB)	22 V (+29 dB)
(26 dB Setting)		25 V (+30 dB)	25 V (+30 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	8.5 A / NEMA-15	12 A / NEMA-15	18 A / 30 A Twist-Loc
230 V 50 Hz	7.5 A / Euro 16 A	7 A / Euro 16 A	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.

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Phone: 1-800-854-4079 or 714-957-7100, Outside the U.S. 714-754-6175 / Fax: 714-754-6174

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