QSC AD-S28Tw Dual 8" bandpass subwoofer
Features
- Dual 8-inch polypropylene cone woofers0
- 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
SPECIFICATIONS
- Configuration: Surface mount bandpass subwoofer, ported
- Low-frequency transducer: Dual 8-inch (200 mm) weather resistant, polypropylene cone woofers, rubber surround
- Frequency range: Frequency response (-6 dB); 42 to 165 Hz, Useable frequency range (-10 dB); 36 to 205 Hz
- Filter: 120 Hz low-pass, passive, bypassable
- Maximum output: Calculated peak / continuous Output; 2 pi (half space) 124 dB SPL / 118 dB SPL, 4 pi (full space) 118 dB SPL / 112 dB SPL
- Nominal impedance: 8 ohms
- Continuous power handling: 250 W (2 hours IEC)
- Recommended max amp power: 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; 8O bypass, 100V: 200, 100, 50 W; 8O 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