General Features
•Dual treated paper cone woofers, each with 30 oz. vented magnets
•Treated foam surrounds
•12dB/octave low pass filter at 200Hz
•Detachable screw terminal strips
•Eight wall mounting points (
instead of conventional six
) for added stability
Specifications
Woofer Size Dual 8"
Power Capacity 100W/200W RMS/peak
Frequency Response 45Hz ~ 200KHz
Nominal Impedance 8
(per channel)
SPL 90dB W/M
Note:
This speaker utilizes dual 8" woofers, each with 8impedance and independent crossover channels.
It may be connected directly to the output of a conventional stereo amplifier, placing an 8load on each
channel. If this is to be used with an independent subwoofer amplifier, the two channels should be placed in
parallel, thus creating a 4load. In special circumstances, where multiple subwoofers are being connected
together, it is also suitable to place the two channels in series to create a 16load.
Dimensions
(assumes vertical mount)
Front Outer Frame 20.75" (H) x 11.375" (W)
Required Cutout 19.25" (H) x 8.75" (W)
Mounting Depth 3.75"
Speaker Placement
Unlike conventional two-way and three way speakers, subwoofers are only designed to create the low
frequency bass response. Because these frequencies are not directional, the subwoofer may be placed out
of the way. From a standpoint of room gain, it is best to locate near a corner. If used in a home theater
environment, it is best to have on the same wall as the front and center channel speakers.
Note that due to the low frequency material being produced by this speaker system, and the relatively high
mass of the cone assemblies, potential for high vibration exists. Corner mounting will help reduce this to
some extent, but extra reinforcement inside the wall, including double studs may be worth consideration (in
new work installations). For added support in ceiling installation, a 3/4" thick sheet of plywood should be
installed between the ceiling joists (anchored to the joists), immediately behind the drywall, with the
speaker cutout being in the ceiling sheet and the plywood.
Speaker Wire
It is important that good quality wire is used in the installation. Installed speakers generally have much
longer wire runs than normal home theater speakers, hence heavier gauge wire is recommended. Note:
There are numerous manufactures in the market offering “high-end” esoteric speaker wire, with claims of
exotic materials and superior performance. Truthfully, this type of product has been found to provide little
or no benefit to installations of this type. Good quality 16AWG CL2 rated in-wall wire, such as MCM #24-
9995 (two-conductor), #24-10015 (four-conductor) or similar, provide outstanding performance in this
application.
When running this cable, a few simple guidelines must be followed
•Speaker wire should be kept away from AC wiring to prevent noise. If AC wiring and speaker wire
must cross paths, it is best to have them cross at a 90º angle, minimizing the common surface
area between the two
•Speaker wire and AC lines should NEVER pass through the same hole in studs or joists
•When connecting to a dedicated subwoofer amplifier, the speaker wire should be run from this
speaker, directly to the amplifier
•When using with a small pair of in-wall or ceiling speakers, with a stereo amplifier, it is suitable to
run speaker wire from the amplifier, to this subwoofer, then from this subwoofer to the in-wall or
ceiling speaker pair.
