11 Model Seven Operation Manual
I
NSTALLING
T
HE
C
ONES
& L
ISTENING
H
EIGHT
A
DJUSTMENTS
The Model Seven is supported by three cones, one in
each front corner and one in the rear center. Install the
skirted locking collar on the cone and thread the cone in
until the bottom of the skirt is even with the top of the cone
(this should leave about seven threads showing on top of
the locking collar). With the speakers still in the position
previously discovered, thread the cone assemblies directly
into the bottom of the speaker with the top of the locking
collar just touching the bottom of the speaker and the bot-
tom of the skirt still even with the top of the cone. Do not
tighten them at this time. At no time should the weight of
the speaker be on the cones with less than seven threads into
the speaker bottom. Two people are required to safely in-
stall the cones. Do not attempt to install the cones by your-
self.
All properly aligned loudspeakers have a vertical listen-
ing window where their sound is optimized. The Model
Seven’s six inch high optimum listening window is centered
at 36 inches when the speaker is vertical. If your ear height
is above or below 36 inches at your normal listening posi-
tion, the speakers should be tilted to center the optimum
listening window at your ear height. A Laser Jig is used to
level, set vertical alignment and toe in .
1. Remove the grille and install the Laser Jig into the four
grille receptacles on the front baffle. Make sure the Jig
is seated into the receptacles fully.
2. Measure the ear height of the listener relaxed in the lis-
tening position. Place a piece of cardboard vertically
against the seat back. Draw a X on the cardboard at ear
height exactly on center (this will be slightly behind the
ears which is OK). With a level for a straight edge
draw a plumb vertical line through the X.
3. Rotate the laser to the earlier determined toe on the pro-
tractor. Tip: when measuring for speaker location de-
termined by the earlier experiment, use tape to mark the
precise position for the rear cone of each speaker. All
toe movements will swivel on the rear cone so the
speaker position remains constant. Turn on the laser
and rotate the speaker until the dot falls on the vertical
line. Turn off the laser.
4. Using the bubble level built into the Laser Jig, level the
speaker (right-left) using the front cones. Insert a small
Improper listening height can cause
the speakers to sound extremely
bright or dull.
Two people are required to safely in-
stall the cones. Do not attempt to in-
stall the cones by yourself.
Be careful not to cross thread the
cones as you install them into the bot-
tom of the Model Seven. The cones
should turn easily by hand. Damaged
threads can be repaired with a
9/16x18 thread tap. A stuck cone can
be removed by turning it with a nail
or small screwdriver inserted
through the cross hole.
screwdriver into the cross hole in the cone and turn in
the cone (counter clockwise) on the high side until
level. Do not turn either cone clockwise as the cones
are already out as far as allowed. Holding the cone in
place with the screwdriver, tighten the locking collar
with the supplied wrench on both front cones. Doub-
ble check that there are no threads showing on either
cone.
5. Turn on the laser and verify that the dot is still on the
vertical line. Tweak if necessary. With a screwdriver
into the cross hole of the rear cone, turn it in (counter
clockwise) until the dot is on the X. Tighten the
locking collar. The Model Seven is now perfectly
aligned.
6. Remove the grille from the other speaker and install
the Laser Jig.
7. Rotate the laser to the same but opposite angle on the
protractor and repeat steps #3 through #5. Both
Model Sevens are now perfectly aligned.
P
LUGGING-
I
N
T
HE
S
UBWOOFER
A
MPLIFER
With the speaker cables connected, the M5-HP crossover
in place, the placement established, and the cones installed,
the Model Seven’s subwoofer amplifier should be plugged-
in. The amplifier uses a removable power cord that should
be securely inserted into the amplifier then plugged into a
non-switched outlet that is known to be operating properly.
If an extension cord is required, it should be as short as
possible and constructed of 14 gauge or larger wires. As the
amplifier is plugged-in, it will usually produce a thump or
pop from the subwoofer. Never use a ground cheater.
During electrical storms or when the system will not be
used for a long period of time, (i.e. vacations) the Model
Seven amplifier should be unplugged along with the other
components in the system.
