QSC Audio PL224 - Manual (Page 3)

PL2A Model Specifications
PL218A PL224A PL230A PL236A
Stereo Mode (both channels driven) Continuous average output power per channel
8Ω / FTC 20 Hz - 20 kHz / 0.05% THD 310 W 440 W 575 W 725 W
8Ω / EIA 1 kHz / 1% THD 350 W 475 W 625 W 800 W
4Ω / FTC 20 Hz - 20 kHz / 0.07% THD 525 W 715 W 900 W 1100 W
4Ω / EIA 1 kHz / 1% THD 600 W 825 W 1050 W 1300 W
2Ω / EIA 1 kHz / 1% THD 900 W 1200 W 1500 W 1850 W
Bridge Mono Mode
8Ω / FTC 20 Hz - 20 kHz / 0.1% THD 1100 W 1500 W 2000 W 2400 W
4Ω / EIA 1 kHz / 1% THD 1800 W 2400 W 3000 W 3700 W
Noise (20 Hz - 20 kHz) -103 dB -103 dB -103 dB -103 dB
Input Sensitivity at 8Ω 2.57 Vrms (26 dB) 3.05 Vrms (26 dB) 3.84 Vrms (26 dB) 3.95 Vrms (26 dB)
1.28 Vrms (+4 dBu) 1.20 Vrms (+4 dBu) 1.22 Vrms (+4 dBu) 1.24 Vrms (+4 dBu)
1.28 Vrms (32 dB) 1.53 Vrms (32 dB) 1.93 Vrms (32 dB) 1.98 Vrms (32 dB)
Input Sensitivity at 4Ω 2.37 Vrms (26 dB) 2.79 Vrms (26 dB) 3.41 Vrms (26 dB) 3.45 Vrms (26 dB)
1.18 Vrms (+4 dBu) 1.10 Vrms (+4 dBu) 1.08 Vrms (+4 dBu) 1.09 Vrms (+4 dBu)
1.18 Vrms (32 dB) 1.39 Vrms (32 dB) 1.71 Vrms (32 dB) 1.73 Vrms (32 dB)
Voltage Gain 26, 32, 32 dB 26, 32, 34 dB 26, 32, 35 dB 26, 32, 36 dB
Output Circuitry AB Class H, 2-tier Class H, 2-tier Class H, 2-tier
Power Requirements (1/8 power pink noise at 4Ω)** 8 A* 8 A* 9 A* 10 A*
Distortion (SMPTE-IM) < 0.01%
Distortion (typical)
10 dB below rated power; 20 Hz - 20 kHz < 0.025% THD
Full rated power: 1 kHz and below < 0.025% THD
Frequency Response 20 Hz – 20 kHz, ±0.2 dB / 8 Hz – 65 kHz, +0, -3 dB
Damping Factor > 500
Input Impedance 6k ohm unbalanced / 12k ohm balanced
Input Clipping 10 Vrms (+22 dBu)
Cooling (each channel) Variable speed fan, rear-to-front air flow
Connectors (each channel) Input: 3-pin rubber isolated XLR and 3-pin detachable terminal blocks (1 each per channel)
Output: Neutrik Speakon ® and touch proof binding posts
Controls - Rear
Input Configuration Stereo or parallel
Mode 2-channel, bi-amp, or bridge mono
DataPort Input Signal Pre-processing, post-processing, or off
Gain Sensitivity 26 dB, +4 dB, or 32 dB
Controls - Side
Subaudio Filter (each channel) 5 Hz (off), 30 Hz or 50 Hz
Clip Limiter (each channel) On or off
Crossover Controls - Side
Frequency Range of 85 Hz to 2500 Hz (configured with SIP resistor)
Low-frequency Delay Enable (Ch. 1 only) On or off (active only in bi-amp mode only)
Low-frequency Delay (Ch. 1 only) Range of 0.14 to 6.5 mSec. (configured with SIP resistor)
High-frequency ch. attenuation (Ch. 2 only) Range of 0 to - 15 dB in 1 dB steps (active only in bi-amp mode)
CD Horn equalization (Ch. 2 only) Range of 0 to +14 dB boost in 2 dB steps (active only in bi-amp mode)
Power Limiter Controls - Side
Power Limiter Enable (each channel) On or off
Power Limiter Mode (each channel) Average or peak attack and release mode
Power Limiter Threshold (each channel) Range of 0 to -15 dB in 1 dB steps
Power Limiter Speed (each channel) Fast: 1-8 mSec. of attack (depending on limiter mode) and 20 ms release
Medium: 10-80 mSec. of attack (depending on limiter mode) and 200 ms release
Slow: 180 mSec.-1.6 sec. of attack (depending on limiter mode) and 4 sec. release
Ch.1 tracks Ch. 2, Ch. 2 tracks Ch. 1, or off
Indicators Front: Power: Green LED | Bridged: Yellow LED | Parallel: Orange LED | Biamp: Blue LED | Clip: Red LED (1 per ch.)
Level -10: Orange LED (1 per ch.) | Level -20: Green LED (1 per ch.) | Signal -35: Green LED (1 per ch.)
Rear: Stereo: Green LED | Parallel: Orange LED | Biamp: Blue LED | 2CH mode: Green LED | Bridged: Yellow LED
DP Pre Processing: Blue LED | DP Out: Green LED | DP Post Processing: Yellow LED | Gain 26dB: Orange LED
Gain +4dBu: Green LED | Gain 32dB: Yellow LED
Side: LF filter engaged: Green LED (1 per ch.) | Power Limiter Activity: Yellow LED (1 per ch.)
Amplifier Protection Full short circuit, open circuit, thermal, ultrasonic, RF protection. Stable into reactive or mismatched loads
Load Protection On/off muting / DC-fault power supply shutdown
Dimensions (HWD) 3.5" (8.9 cm) 2 rack spaces x 19" (48.3 cm) rack mounting x 14" (35.6 cm) from front mounting rails
Weight - Net / Shipping 21 lbs (9.5 kg) / 27 lbs (12.3 kg)
*at 120 VAC, both channels driven; multiply current by 0.5 for 230V units ** Note: 1/8 power is representative of current draw with typical music program material with occasional clipping