QSC Audio AD-C42T user manual Specifications

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Specifications

Frequency Response1:

AD-C42T

100- 20k Hz (-3 dB), 85- 20k Hz (-10 dB)

Maximum Output2:

101 dB SPL continuous rms output

(calculated)

107 dB SPL peak output

Transducers:

LF: 105 mm (4”), 19 mm (0.75”) voice coil;

 

weatherproof, low-distortion polypropylene cone.

 

HF: 19mm (0.75”) titanium dome, neodymium magnet.

Nominal Coverage:

100° conical (average 2.5 kHz - 10 kHz)

Impedance (ohms):

8.0 nom./ 6.7 min. @ 300 Hz.

Power Rating3:

 

rms (IEC 100 hrs):

40 watts rms (30 watts, AD-C42T)

recommended amp power:

80 watts rms, maximum

Sensitivity:

85.0 dB, 1 watt, 1 meter, flush mounted (2 pi)

Bass Loading:

sealed

Optional Processing:

100 to 125 Hz. high pass >12 dB/octave

Dimensions:

see drawings

Net Weight:

AD-C42T: 2.7 kg (6.0 lb.)

Enclosure:

Corrosion-resistant power coated steel enclosure with injection-molded plastic baffle. Press on metal

 

grille

Mounting System:

Captive, integral mounting clamps. Insert enclosure into cutout, and tighten. Suspended ceiling C-ring

 

and support bars included.

Connectors:

Ceramic block connector inputs and terminal block “through” connectors (rated for 400W max).

Controls:

Transformer “tap” selector/ bypass (8 ohm) switch, settings: 3.8, 7.5, 15, and 30 watts (7.5, 15, 30 watts

 

for 100V) and 8 ohms. Averaged over 50Hz - 20kHz bandwidth (30W tap).

 

Transformer Distortion: less than .01% THD above 100Hz, 0.2% @ 50Hz (30W tap). Bandwidth: 40 - 20k

 

Hz (-1dB, all taps).

Agency Listings: CE, UL 1480 (commercial/professional use, outdoor damp), UL 2043 (air handling spaces).

Specification Notes:

1- All frequency ranges specified refer to measured half-space response (2 pi).

2- Calculated maximum peak SPL at 1 m, half-space, speaker operating at rated rms power pink noise input, 50 Hz to 20 kHz.

3- Maximum input power tested in accordance with IEC recommendations; 50 Hz to 20 kHz band limiting, 6 dB signal crest factor.

Specifications are subject to change without notice.

For detailed information, visit QSC’s web site at http://www.qscaudio.com or call us at 1-800-854-4079 (toll-free USA only)

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Contents TD-000263-00 QSC Audio Products 3 Year Limited Warranty DisclaimerCopyright 2007, QSC Audio Products, Inc What’s Included Installation OptionsIntroduction Hardware NomenclatureMounting Clamps Grill Safety ClipUse the Secondary Support Tab ConnectionsInstallation Procedure Specifications AD-C42T Dimensions Facsimile Numbers Mailing addressTelephone Numbers World Wide Web