3
U N P A C K I N G
Feet
Your HTPS-400 subwoofer is
equipped with 2 sets of feet
for use depending on the type
of surface the subwoofer will
be placed on. Enclosed with
this manual is a set of rubber
self-adhesive feet for use on
hard surfaces, such as wood
or tile floors, and a set of
spiked feet for use on
carpeted surfaces. To install
the feet, set the subwoofer
gently on a padded surface
with the bottom side up. If
you are using the rubber
feet, attach them to the four
corners of the unit, covering
the holes. If you are using the
spiked feet, install them by
pressing them into the holes.
The subwoofer may not
perform as well as expected if
you neglect to attach the feet.
Grille
Your HTPS-400 subwoofer has
been packaged with the grille
unattached for shipping pur-
poses. In some applications,
such as custom installations,
the grille may not be necessary.
In cases where a grille is
needed, carefully align the
grille pegs with the grommets
and insert the grille. The grille
is not designed for frequent
removal, and cannot be
readily removed with bare
hands. If for some reason it
becomes necessary to remove
the grille, it should be pried off
very carefully with a small, flat-
tipped, jewelers’ screwdriver,
taking extra care not to
damage the baffle or the grille.
0–2 ft.
Front view
Top view
S P E A K E R P L A C E M E N T
Experiment with placement for
the most accurate and uniform
bass response throughout the
room. It is important to avoid
blocking the grille of the
subwoofer.
Since the HTPS-400 is video-
shielded, it may be placed in
proximity to a television
monitor.
A single HTPS-400 subwoofer
meets THX Select requirements
for a 3000-cubic-foot room.
However, to meet THX Ultra
requirements for a 3000-
cubic-foot room, two or more
HTPS-400 subwoofers are
required. The preamp output
featured on the HTPS-400
simplifies the hookup of
multiple units (see page 4).
