S-5000
THX
& S-150
THX
satellite speakers
page 9
TOP VIEW OF THE FOAM
PIECES PICTURED ON
THE FRONT VIEW.
PLEASE NOTE: THE
ANGLED SIDE OF
THE FOAM MUST
GO TO THE OUTSIDE
OF THE CABINET.
ATTACH THESE TWO
PIECES OF FOAM
TO THE SPEAKER'S
FRONT BAFFLE
WHEN THE SPEAKER
WILL BE USED
WITHOUT A GRILLE
FRONT VIEW
TOP VIEW
A. "NORMAL" SWITCH POSITION
When you are using the S-5000 away from walls, the floor, or ceiling, the switch should be set to the
"NORMAL" position. This includes placement on stands, risers, in furniture, suspended from ceilings, etc.
Unless the speaker is in direct contact with a wall, floor, or ceiling, use the "NORMAL" switch setting. If in doubt,
use the "NORMAL" position or contact the M&K factory for more information.
B. "SPECIAL" SWITCH POSITION
When any loudspeaker is in direct contact with a room boundary surface (wall, floor, or ceiling), its
frequency response is modified by that contact. Specifically, that contact increases the bass and midbass output
of the speaker. If a speaker (such as the S-5000) is designed for flat frequency response away from room
surfaces, placing it against a surface may cause its sound to become "muddy" or "boomy".
If you are locating your S-5000s so that they are in contact with a wall, floor, or ceiling, set this switch to
the "SPECIAL" position. This will attenuate the bass and midbass output of the speaker to compensate for the
increased bass produced by the speaker's room location. Feel free to experiment with the switch in both
positions to find the one that gives the flattest response in your room.
Use the SPECIAL position if you are optimizing your system's response with a THX or third-octave equalizer
and calibrating that equalizer by using a third-octave analyzer. The SPECIAL position will always maximize
output and dynamic range, and will play the loudest, regardless of the size of amplifier that you are using.
The reason that you may find that the SPECIAL position gives the best response when you are locating
the speaker directly against a wall or directly against the floor or ceiling is because this position is designed to
account for the increase in midbass response that occurs when a speaker is directly against a room surface.
(This is referred to as 2 pi space, in contrast to a speaker located out in a room, which is known as 4 pi space.
The SPECIAL position should be used for 2 pi conditions, and the NORMAL position should be used for 4 pi
conditions).
8. USING THE S-5000 WITHOUT SPEAKER GRILLES
If you look on the front baffle and inside the speaker grilles of your S-5000 speakers, you will find some
unusually-shaped pieces of foam. Do not remove this foam.
This special acoustical foam is an integral part
of the speaker and an important element in its performance.
FIGURE 4
USING THE S-5000 WITHOUT GRILLES (FOAM PATTERN)
