Descripción
QSC AD-S28Tw
QSC AD-S28Tw Dual 8-inch subwoofer
Characteristics
- Dual 8″ polypropylene cone woofers
- Oversized vent tube for wide low-frequency performance
- Dual Chamber Band Pass Box with Vent Tube
- Passive 120 Hz low-pass filter with impedance compensation
- Continuous allowable power of 250 watts, peak of 700 watts
- 70V/100V multi-tap transformer with 8 ohm bypass
- Footpeg assembly and suspension equipment included
- Maritime plywood construction
Package Includes:
AD-S28Tw Speaker
Footboard Mount
Suspension Equipment
Foam-coated Grille
SPECIFICATIONS | AD-S28Tw |
| Configuration | Surface mount bandpass subwoofer, ported |
| Low-frequency transducer | Dual 8-inch (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 |
