QSC AD-C81Tw 8" Ceiling Mount Subwoofer - White
Part # AD-C81Tw-wh
Model # AD-C81Tw

The QSC AD-C81Tw 8" 70V 8 Ohm Ceiling Mount Subwoofer is designed to supplement audio systems with low-frequency extension, the AD-C81Tw is acoustically matched to the entire AcousticDesign Series. Rated for 100 watts continuous power and 400 watts peak.

Availability: Usually arrives in 5-9 business days.

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Description

Details

The AcousticDesign Series of installation loudspeaker products from QSC expands with the AD-C81Tw ceiling mount subwoofer system. Designed to supplement audio systems with low-frequency extension, the AD-C81Tw is acoustically matched to the entire AD Series. Rated for 100 watts continuous power handling and are able to take up to 400 watt peaks, the AD-C81Tw is a great compliment to any of the ceiling mount or surface mount AD Series models.

The 8" woofer is equipped with a polypropylene cone for protection in humid environments. The driver features a synthetic rubber surround and works optimally with the large port to provide excellent low-frequency extension below 40 Hz without undesirable port turbulence. This highly efficient design measures 92 dB SPL sensitivity.

The AD-C81Tw has 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 baffle and mounting tabs are molded from high-impact polystyrene. The rear enclosure is heavy gauge, powder coated steel. The attractive aluminum grille is backed with an acoustically transparent white cloth. The input cup is mounted on the side of the enclosure to reduce the amount of vertical clearance necessary to install the speaker. The input cup cover features a conduit attachment point plus an additional knockout for daisy-chain wiring. Input signal connection is made with a high temperature resistant ceramic screw terminal for compliance with European safety standards.

The AD-C81Tw is factory shipped with C-rings and tile rails for installation. Construction rings (ADC-NCS) and mud rings (ADC-MRS) are also available separately. The AD-C81Tw is equipped with a 70/100 V transformer with multiple taps and an 8 ohm bypass.

Features

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
Specification
ConfigurationCeiling subwoofer, ported
Low-frequency Transducer8" (20 cm) weather resistant, polypropylene cone woofer, rubber surround
Frequency Range
Frequency Response (-6 dB)39 Hz - 184 Hz
Useable Frequency Range (-10 dB)28 Hz - 208 Hz
Filter120 Hz low pass, passive, bypassable
Maximum Output
Calculated Peak Output118 dB SPL
Calculated Continuous Output112 dB SPL
Nominal Impedance8 ohms switchable
Power Rating
RMS Power Handling100 W (100 hours IEC)
Recommended Max Amp Power200 W RMS
Sensitivity92 dB, 2.83 V, 1 m, free space (4pi)
Transformers
TypeCustom low distortion laminated core, wide bandwidth design
Taps70 V: 60, 30, 15, 7.5 W / 100 V: 60, 30, 15 W / 8 ohms selected by switch
EnvironmentalExceeds Mil Spec 810 for humidity, salt spray and dust; IEC 60529 IP-X3 splash rating
Enclosure
MaterialInjection molded, high impact polystyrene baffle on a steel enclosure
FinishWhite (paintable)
GrillePainted aluminum
ConnectorsCeramic block or 4-pin Euro terminals in fire protective sub-chamber
Mounting HardwareRails and C-ring for ceiling tile installation
Available AccessoriesADC-MRS Mud ring bracket • ADC-NCS New construction bracket
Net Weight20 lbs (9.1 kg)
Shipping Weight28 lbs (12.7 kg)
Documents
In The Box

In The Box

  • AD-C81Tw Loudspeaker
  • C-Ring and Tile Rails
  • Round Grille (White, Paintable)
  • Paint Mask
  • Connector Assembly
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