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Woofers: The VSi S8W2 in-wall subwoofer uses dual 8" DCD
(Deep Channel Design) copolymer woofers with die-cast aluminum baskets. The subs
are mounted to a cast aluminum baffle for rigidity and low resonance. The DCD
woofers use a deeply grooved pole plate that enables the voice coil to travel
farther for greater output without bottoming.
Amplifier: The VSi S8W2 sub is designed to work with the
Boston Acoustics SA1 sub amplifier (included in this package). One SA1 amp can
run up to two VSi S8W2 subs.
Inputs: Spring loaded posts will accept banana plugs (single
or dual) or bare wire up to 12 gauge.
Paintable: Both the frame and grille can be painted to match
the wall. A plastic paint mask is included to protect the drivers.
Optional Bracket: The NCBTL8 new-construction bracket (item
number 065NCBTL8, sold separately) can be used to simplify installation in new
Magnetic Grille: The grille is magnetically mounted for easy
Installation: After a 19-7/16" x 11" cutout is made
the speaker is installed into the opening and held in place with the integral
plastic bracket. The required depth to install the speaker is 3-3/4" from
the mounting surface (this includes the thickness of the drywall). Behind the
mounting surface there must be a 1-1/2" clearance on both sides of the speaker
(along the long sides). The mounting wall material must be at least 1/2" thick
for the integral mounting bracket to work.
Overview: The SA1 amplifier is designed to be used with the
Boston Acoustics line of installed subwoofers. One SA1 amplifier can power up to
two of the same model subwoofer.
Variable Crossover: The amplifier has a built-in variable
crossover that makes it easy to achieve a seamless blend with the main speakers,
while the 24dB/octave low-pass filter prevents the subwoofer from being easily
localized by the ear, increasing placement flexibility. The crossover point may
be adjusted from 40-160 Hz.
Front Panel Controls:
- Phase Switch: switches the polarity
of the two speaker outputs; the correct setting is that
which yields the fullest bass
- Low-pass Knob: adjust the low-pass
crossover point from 40-160 Hz
- Volume Knob: adjust the volume level
up or down until the bass level of your subwoofer matches
the bass level of your speakers
Rear Panel Controls:
- EQ Mode Switch: select Wall or Floor,
depending where your subwoofer is located
- 12-volt Trigger Switch: choose one of
the following settings:
- On: amp is on whenever
the front panel switch is in the On position
- 12V: amp is in standby
mode whenever the front panel switch is in
the On position; the SA1 turns on when a
12-volt power supply triggers it
- Note: Be sure
to use a power supply that is rated
9 to 14 volts DC @ 1.5mA max, 1/8"
diameter female plug with tip positive.
- Music: amp is in standby
mode whenever the front panel switch is in the
On position; the SA1 turns on when an audio
input signal triggers it
Rear Panel Connections:
- Line In: left and right RCA audio jacks;
use this configuration if you wish to set the subwoofer crossover
point using the SA1's low-pass control knob on the front panel
or are using separate components, such as stereo preamplifier
- LFE/Xover Bypass: single RCA audio jack;
in this configuration, the SA1's internal low-pass filter and
front panel low-pass control knob will be bypassed
- Speaker A/Speaker B: gold-plated binding
posts; the binding posts are not 5-way because a plastic collar
prevents their use with spade lugs
- Width: 12.375"
- Height: 20.8125"
- Depth: 3.75"
- Width: 19"
- Height: 3.705"
- Depth: 13.188"