Vandersteen Audio TREO Operation Manual - page 8
8
V
ANDERSTEEN
A
UDIO
8
I
NSTALLING
T
HE
C
ONES
& L
ISTENING
H
EIGHT
A
DJUSTMENTS
The Quatro is supported by two cones, one in each front
corner and one spike in the rear center. The cones and spike
thread directly into the bottom of the speaker and provide
stability and proper coupling to the floor. Two people are
required to safely install the cones and spike. Do not attempt
to install them by yourself.
All properly aligned loudspeakers have a vertical listening
window where their sound is optimized. The Quatro’s six
inch high optimum listening window is centered at 35
1/2
inches when the speaker is vertical. If your ear height is
above or below 35
1/2
inches at your normal listening position,
the speakers should be tilted to center the optimum listening
window at your ear height. The chart to the right shows how
many spacers should be inserted between the rear spike and
the speaker to tilt the speaker for different ear heights and
listening distances.
1. Measure the distance from the listening position to the
speakers and the height of your ears when you are seated
at your listening position. (Ear height is roughly equal to
the height of the tip of your nose).
2. Find the values closest to your actual measurements on
the chart to the right.
3. Follow the horizontal line across from your listening
distance and the vertical line up from your ear height to
the point where they intersect. The heavy lines are num-
bered to indicate how many spacers should be inserted
between the rear spike and the bottom of the Quatro to
center the listening window at your listening height and
distance.
4. Lean the speaker to one side as one person supports the
main body of the speaker. Do not touch the front grille
to support the speaker.
5. Install two cones into the threaded holes on each front
corner. Be careful not to cross-thread the cone, it
should go in easily. By hand, tighten the cone snug up
against the bottom of the speaker. Do not adjust right
or left tilt on a uneven floor without some kind of shim.
The weight of the speaker must not be on the threads of
the cone.
6. Place the number of washers indicated for the rear spike
on a cone and tread it into the rear center of the speaker.
Hand tighten it against the bottom of the speaker.
7. Set the speaker up-right.
8. Sight across the front of the speaker’s woofer boxes and
verify they are both tilting at the same angle. Some ad-
justments of the washers on one speaker may be
needed. It is important that both speakers are perfectly
parallel with each other.
9. The two small holes (1/4 - 20) at the rear flanking the
center spike are for stability. Install the small spikes but
do not allow them to touch the floor. If the tilt chart calls
for significant tilt, the outrigger spikes are not required.
Improper listening height can cause
the speakers to sound extremely
bright or dull.
Two people are required to safely in-
stall the cones and spike. Do not at-
tempt to install the cones by yourself.
Be careful not to cross thread the
cones as you install them into the bot-
tom of the Quatro. The cones should
turn easily by hand. Damaged
threads can be repaired with a 1/4-20
thread tap. A stuck cone can be re-
moved by turning it with a nail or
small screwdriver inserted through
the cross hole.
A
N
E
XAMPLE
In a room where the listening position was 15 1/2 feet
away from the speakers and your ear height was 39 1/2
inches, the lines would intersect as shown by the
dashed lines on the graph. Since the intersection is
closest to the 6 line, you would place 6 spacers on the
rear spike.
2
1
0
3
4
33
35
34
36
37
38
39
40
41
42
43
44
10
9
8
7
6
5
12
13
11
HEIGHT IN INCHES TO EAR
19
18
17
16
15
14
13
12
11
10
9
8
20
7
6
DISTANCE FROM EARS TO FRONT OF SPEAKER TOP