ADS28TWBK 8" SUB BANDPASS 120HZ BYPASS 70/100V & 8 OHM
- Dual 8" polypropylene cone woofers
- Large port area for extended low-frequency performance
- Dual-chamber ported bandpass cabinet
- Defeatable passive 120 Hz low-pass filter with impedance compensation
- 250 watts continuous power handling, 700 watts peak
- 70/100 V multitap transformer with 8 ohm bypass
- Yoke mount and flying hardware included
- Marine grade plywood construction
Package Includes:
AD-S28Tw loudspeaker
Yoke mount
Suspension hardware kit
Grille backing cloth
| Configuration |
Surface mount bandpass subwoofer, ported |
| Low-frequency transducer |
Dual 8" (200 mm) weather resistant, polypropylene cone woofers, rubber surround |
Frequency range 1
Frequency response (-6 dB)
Useable frequency range (-10 dB) |
42 to 165 Hz
36 to 205 Hz |
| Filter |
120 Hz low-pass, passive, bypassable |
Maximum output 2
Calculated peak / continuous Output
2 pi (half space)
4 pi (full space) |
124 dB SPL / 118 dB SPL
118 dB SPL / 112 dB SPL |
| Nominal impedance |
8 ohms |
Power rating
Continuous power handling3
Recommended max amp power |
250 W (2 hours IEC)
500 W (loudspeaker "program" power) |
| Sensitivity |
94 dB, 2.83 V at 1 m, half space (2 pi) |
| Transformers |
| Type |
Custom low distortion laminated core, wide bandwidth design |
| Taps |
70V: 200, 100, 50, 25 W; 8Ω bypass
100V: 200, 100, 50 W; 8Ω bypass |
| Enclosure |
| Material |
Marine grade plywood, ABS, steel grille |
| Environmental |
Exceeds Mil Spec 810 for humidity, salt spray and dust; IEC 60529 IP-X4 splash rating |
| Finish |
Textured black paint |
| Grille |
Painted steel |
| Connectors |
Four-position barrier strip; 2 in / 2 out |
| Mounting Hardware |
Black powder coated steel yoke with attachment hardware
Black zinc coated forged shoulder steel M6 eyebolts
Black powder coated steel shear plates with attachment hardware
Black rubber feet with integral threaded bolt |
| Net Weight |
43 lb / 19.5 kg |
| Shipping Weight |
55 lb / 25 kg |
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 WARNING: This product contains chemicals including Styrene which is known to the state of California to cause cancer, and Bisphenol A (BPA), which is known to the state of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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