EN
Introduction
Congratulations and thank you for your purchase of this subwoofer. The AD-S28Tw model offers excellent acoustic perfor-
mance in an easy-to-install and attractive enclosure. Please review these instructions and carefully follow the recommenda-
tions. Consult a licensed installation professional if you are uncertain about any mounting issues.
The AD-S28Tw features dual 8” (200 mm) low frequency (LF) drivers in a ported bandpass enclosure. The AD-S28Tw is
equipped with an audio transformer suitable for 70V and 100V distributed systems, as well as a tap-selector switch which
can bypass the transformer for 8 ohm applications. The AD-S28Tw also includes a bypassable 120Hz low pass filter. The
marine-grade plywood enclosure may be used in floor-standing as well as yoke mounted and suspended applications.
What’s Included
Your surface mount subwoofer includes:
• the loudspeaker cabinet with grille
• extra grille backing foam sheet
• steel yoke bracket
• steel suspension point shear plates (×3)
• steel M6 forged shoulder eyebolts (×4)
• hex head / phillips-head M6 bolts (×3)
• flat washers (×4)
• rubber yoke mounting gaskets (×2)
• rubber feet with integrated attachment bolts (×4)
Features
1.
Marine grade plywood enclosure, painted
2.
ABS grille endcaps
3.
Steel grille with foam backing
4.
Rotatable QSC logo badge
5.
Integrated M6 suspension points
6.
Input cup with rotating door (see detail)
7.
Rubber feet (shown attached)
8.
Service access panel
9.
Low Pass Filter Switch
10.
Transformer tap switch
11.
Input cup door (shown in open position)
12.
Input screw terminals
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2
3
4
5
6
7
8
9
w
10
12
11
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