Specifications
AD-C81Tw
Frequency Response
1
:
50- 200k Hz (-3 dB), 25- 200 Hz (-10 dB)
Maximum Output
2
:
112 dB SPL continuous rms output
(calculated)
118 dB SPL peak output
Transducers:
LF: 203 mm (8”), 19 mm (0.75”) voice coil;
Nominal Coverage:
180° conical (average 2.5 kHz - 10 kHz)
Impedance (ohms):
8.0 nom./ 8.3 min. @ 42 Hz.
Power Rating
3
:
rms (IEC 100 hrs):
100 watts rms (100 watts)
recommended amp power:
200 watts rms, maximum
Sensitivity:
92.0 dB, 1 watt, 1 meter, flush mounted (2 pi)
Bass Loading:
ported, tuned to 42 Hz
Optional Processing:
125 Hz. low pass >12 dB/octave xover.
Dimensions:
see drawings
Net Weight:
AD-C81Tw: 9.1 kg (20.0 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: 7.5, 15, 30, and 60 watts (15, 30, 60 watts
for 100V) and 8 ohms. Averaged over 50Hz - 20kHz bandwidth (60W 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)
