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Features
- 8-inch 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
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SPECIFICATIONS
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AD-C81Tw |
| Configuration | Ceiling subwoofer, ported |
| Low-frequency Transducer | 8-inch (20 cm) weather resistant, polypropylene cone woofer, rubber surround |
| Frequency Range 1 Frequency Response (-6 dB) Useable Frequency Range (-10 dB) |
39 Hz to 184 Hz 28 Hz to 208 Hz |
| Filter | 120 Hz low pass, passive, bypassable |
| Maximum Output 2 Calculated Peak Output Calculated Continuous Output |
118 dB SPL 112 dB SPL |
| Nominal Impedance | 8 ohms switchable |
| Power Rating Continuous power handling3 Recommended amplifier power (loudspeakerprogram" power) |
100 W (100 hours IEC) 200 W |
| Sensitivity | 92 dB, 2.83 V, 1 m, free space (4 pi) |
TRANSFORMERS |
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| Type | Custom low distortion laminated core, wide bandwidth design |
| Taps (switch selected) | 70 V: 60, 30, 15, 7.5 W; 8Ω 100 V: 60, 30, 15 W; 8Ω |
| Environmental | Exceeds Mil Spec 810 for humidity, salt spray and dust; IEC 60529 IP-X3 splash rating |
| Agency Rating | Listed UL1480, UL2043 safe for use in air handling spaces; Transformer is Listed UL1876; Compliant BS/EN 60849 safety standards |
ENCLOSURE |
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| Material | Injection molded, high impact polystyrene baffle on a steel enclosure |
| Finish | White (paintable) |
| Grille | Painted aluminum |
| Connectors | Ceramic block or 4-pin Euro terminals in fire protective sub-chamber |
| Mounting Hardware | Rails and C-ring for ceiling tile installation |
| Weight | 20 lb (9.1 kg) Net 28 lb (12.7 kg) Shipping |
| Available Accessories | ADC-MRS Mud ring bracket • ADC-NCS New construction bracket |
1All frequency ranges specified refer to measured free field response
2Calculated SPL at 1 m, (free space, 4 pi), speaker operating at rated continuous power with pink noise within specified frequency range
3Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz to 20 kHz band limiting, 6 dB signal crest factor
Specifications are subject to change without notice.
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