Impedance
If you are using the woofer with one pair of full range speakers, the system wired in parallel will have
impedance of 8-ohms. The pair of 8-ohm satellite speakers with a single woofer will result in 4-ohm
impedance. This is a typical speaker impedance rating requiring no special equipment. If you wish to use
multiple speaker systems from a single source, you will need to be concerned about system impedance. An
impedance matching speaker selector, impedance matching volume control, autoformer or multi-channel
distribution amplifier is recommended. Contact your dealer for professional advise.
Wiring Options
When wiring the woofer with the left and right speakers, it is recommended some time be spent planning the
most efficient way to wire the system.
Option A:
One woofer and two satellites. Run 16 gauge or heavier 2 conductor wire from the amplifier /
source location to the left speaker and the same to the right speaker. Run 4 conductors (L&R +,-) to the woofer
location. At the amplifier, twist the left + wires from the woofer and left main speaker and connect to the left
(+) terminal on the amplifier typically indicated with a red connector. Twist the left negative conductor from
the woofer and the left negative conductor from the left main speaker, and then connect to the left negative
(ground) terminal typically marked in black on the amplifier. Repeat the process for the right channel woofer
and speaker leads.
Option B:
Multi-room distributed sound systems typically have large bundles of wire tucked in behind the
distribution amplifier or selector. Three piece speaker systems utilizing separate woofers with left and right
mid/hi frequency speakers have the potential for twice the number of wires, which adds to the confusion. One
way to reduce the number of wires at the amplifier is to run one set of left and right + & - conductors from the
amplifier location to the woofer location. Run a second set of left and right + & - conductors from the woofer
to the mid/hi frequency speakers. This results in a splice at the woofer location rather than behind the amplifier,
reducing the number of wires at the source equipment by one half. As in option A, it is important to maintain
correct polarity on the conductors to insure maximum low frequency response from the system.
Final Installation
Drywall will be installed followed by painting, once completed, install the return-air vent over the woofer and
port area. The vent is a standard 10” X 12” steel return-air vent that may be painted to match the room colors.
Using the vent as a template, center it over the woofer opening – mark the screw holes with a pencil. Remove
the vent and drill a 3/32” pilot hole making certain you drill deep enough to penetrate the enclosure. Center the
vent over the pilot holes making sure the vent openings are pointing toward the floor and insert the screws
supplied with the vent. Tighten the mounting screws until the vent is snug against the drywall. Use care not to
over-torque the screws to avoid distorting the steel vent frame.
Warranty
This woofer system is warranted against defects in material and workmanship for a period of ten (10) years
from the date of purchase to the original purchaser. In the event service is needed, contact your nearest dealer
for assistance. See warranty card enclosed.
Specifications:
Woofer:
7” dual voice coil with polypropylene cone and butyl rubber surround
Frequency Response:
35 Hz – 250 HZ + 3 dB
Crossover:
250 Hz 12 dB per octave
Power Handling:
100 watts continuous
Dimensions:
42” high x 14” wide x 3 ½” deep
Shipping Weight
35 lbs.
