Overview
The QSC AD-C81TW Ceiling Mount Subwoofer System (White) is designed to supplement audio systems with low-frequency extension--it's acoustically matched to the entire AD Series. The AD-C81TW is rated for 100 watts continuous power handling and can take up to 400-watt peaks.
The AD-C81Tw has an 8" woofer with a polypropylene cone for protection in humid environments. The driver has a synthetic rubber surround and works optimally with the large port to deliver excellent low frequency extension below 40 Hz without undesirable port turbulence. It also features a built-in passive low pass filter set at 120 Hz. The filter is defeatable from the front baffle to allow the use of outboard crossovers. The AD-C81Tw is equipped with a 70/100V transformer with multiple taps and an 8-ohm bypass.
Features
- 8" polypropylene cone woofer
- Large port area for extended low-frequency performance
- Defeatable passive 120 Hz low-pass filter with impedance compensation
- 100 watts continuous power handling, 400 watts peak
- 70/100 V multitap transformer with 8 ohm bypass
- C-ring and tile rails included
- Side cable entry
Package Includes:
- AD-C81Tw loudspeaker
- C-ring and tile rails
- Round grille (white, paintable)
- Paint mask
- Connector assembly
Specs
| Configuration | Ceiling subwoofer, ported |
| Woofer | 8" (20 cm) weather resistant, polypropylene cone woofer, rubber surround |
| Frequency Range | 39 Hz - 184 Hz 28 Hz - 208 Hz useable frequency range |
| Maximum Output | Calculated Peak Output: 118 dB SPL Calculated Continuous Output: 112 dB SPL |
| Nominal Impedance | 8 ohms switchable |
| Power Rating | 100 W |
| SPL | 92 dB, 2.83 V, 1 m, free space (4pi) |
| Transformer Taps | 70 V: 60, 30, 15, 7.5 W / 100 V: 60, 30, 15 W / 8 ohms selected by switch |
| Rating | Listed UL1480, UL2043 safe for use in air handling spaces; Transformer is Listed UL1876; Compliant BS/EN 60849 safety standards |
| Connectors | Ceramic block or 4-pin Euro terminals in fire protective sub-chamber |
| Dimensions | Diameter: 12.6" (32 cm) Depth: 14.5" (36.83 cm) |
| Weight | 20 lb (9.1 kg) Net |
