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 (x3)
- steel M6 forged shoulder eyebolts (x4)
- hex head / phillips-head M6 bolts (x3)
- flat washers (x4)
- rubber yoke mounting gaskets (x2)
- rubber feet with integrated attachment bolts (x4)
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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