Qsc pl218a User Manual

FTC:

8 ohms per channel (20-20k Hz., 0.05% THD)

310

440

575

725

4 ohms per channel (20-20k Hz., 0.07% THD)

525

715

900

1100

EIA: 1 kHz

8 ohms per channel

350

475

625

800

@1% THD

  4 ohms per channel

600

825

1050

1300

2 ohms per channel

900

1200

1500

1850

Bridged Mono:

16 ohms, 20–20k Hz, 0.1% THD

650

900

1200

1500

8 ohms, 20–20k Hz, 0.1% THD

1100

1500

2000

2400

4 ohms, 1 kHz, 1% THD

1800

2400

3000

3600

DYNAMIC HEADROOM (all models)

less than 2 dB at 4 ohms

DISTORTION (all models)

SMPTE-IM

Less than 0.01%

Typical, 10 dB below rated power, 20-20k Hz.             <0.025%
Typical, full rated power, 1k Hz. and below

<0.025%

FREQUENCY RESPONSE (all models)

20 Hz to 20 kHz, ±0.2 dB

(at 10 dB below rated output power)

-3 dB points: 8 Hz and 65 kHz

DAMPING FACTOR (all models)

Greater than 500

SIGNAL to NOISE (unweighted, 20-20k Hz.)

-103 dB                                                      -103 dB                                                     -103 dB                                                     -103 dB

Selectable from 26dB or 32 dB voltage gain (or a 1.2 Vrms input sensitivity) by the GAIN-SENSITIVITY SELECT switch

          switch position

for rated power into 8 ohms

2.57        1.28         1.28

3.05        1.20         1.53

3.84        1.22         1.93

3.95        1.24          1.98

             for rated power into 4 ohms

2.37        1.18         1.18

2.97        1.10         1.39

3.41        1.08         1.71

3.45        1.09

1.73

INPUT CLIPPING, Vrms (all models)

+22dBu

INPUT IMPEDANCE (all models)

6k ohms unbalanced
12k ohms balanced

CONTROLS (all models)

Front: AC switch, CH 1 and CH 2 gain knobs
Back: Slide switches with LED confirmation for: Input Configuration, Mode, DataPort Input Signal assignment and Gain-Sensitivity Select
Side: SIP networks for crossover frequency and low frequency delay; push-button toggle switch for Subaudio Filter; DIP switches for Subaudio Frequency select,
     Lo Frequency delay enable/off, HF Attenuation 0 to -15 db adjust, Horn Boost 0 to +14 dB adjust. “Per Channel” switches: Power Limiter enable/off,
     Power Limiter Mode peak/average, Power Limiter Threshold 0 to -15dB adjust, Power Limiter attack & release time fast-medium-slow, Power Limiter
      tracking none/bi-amp (CH 2 tracks CH 1)/”reverse” bi-amp (CH 1 tracks CH 2)/stereo (each channel tracks the other), and Clip Limiting on/off