Adjustable Spikes - REVELL Performa F52 Owner's Manual

Acoustic Treatment Materials
The F52 features high-order filters at
220Hz and 2.3kHz that optimize loudspeaker
on-axis and off-axis response, minimizing
degradations that occur in overly "live"
rooms. Placing minimal acoustic treatment
materials at primary reflection points will
reduce these distortions even further.
Ideally, acoustic absorbers should be
placed at the first reflection points on the
front and side walls and either acoustic
absorbers or diffusers should be placed at
the first reflection point on the rear wall.
Because the listener's eyes and ears are
on the same plane, the "mirror method"
is an accurate determinant of critical
reflection points. This method can be used
to determine reflection points for side walls,
rear walls, front walls, and even the ceiling.
Applying acoustic treatment materials to
the side walls is most important, followed
by the front wall, rear wall, and ceiling.
To determine reflection points using the
mirror method:
1. Once the F52s have been placed, sit in
the primary listening position and ask
another person to slide a mirror along
the listening room walls.
2. Note the locations at which the person
sitting in the primary listening position
can see either F52. Be sure to look for
both F52s in the reflection on each
room boundary. These are reflection
points that require acoustic treatment
materials.
If acoustic treatment materials are not
available, hanging a rug over the reflection
points will help reduce degradation in
overly "live" rooms. Carpeting the floor
between the loudspeakers and the primary
listening position and placing irregular
surfaces such as bookcases at first reflection
points will also help minimize strong
reflections.

ADJUSTABLE SPIKES

When shipped, adjustable spikes are
attached to the bottom of the cabinet for
optimal stability, accommodating
installations on tile, hardwood, and
carpeted floors. The F52 is shipped with
spikes attached as shown on the left side of
Figure 6 (next page), with the round end
protruding from the cabinet. The protective
cap is placed over the round end to protect
tile and hardwood floors.
Note
When moving the F52, avoid dragging it
across the floor.
If the F52 is placed on a carpeted floor, the
spikes should be adjusted as shown on the
right side of Figure 6 (next page), with the
sharp end protruding from the cabinet. If
needed, follow the instructions that begin
below to adjust the spikes.
To adjust the spikes:
1. Place the F52 on its side on a soft towel
or carpeted floor.
2. Remove the protective cap from the
round end of the spike. Save it for
possible future use.
3. Rotate the locking ring counterclockwise
to detach it from the spike. Save it for
use in step 6.
4. Rotate the spike counterclockwise to
remove it from the cabinet.
REVEL Performa F52
OWNER'S MANUAL
13