MODEL 625W / MODEL 825W
OWNER’S MANUAL
1 Mitek Plaza
Winslow, IL 61089
815-367-3000
800-225-5689
21A6494
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OTHER PRODUCTS FROM MTX
In-Ceiling Loudspeakers
LOUDSPEAKER PLACEMENT
MTX In-Wall Speakers are designed to work within any interior decorating scheme.
They can be installed in virtually any location where flush mounting is possible.
To maximize their sound performance however certain guidelines should be fol-
lowed. For the best stereo reproduction the two loudspeakers should be placed
an equal distance from your listening position and separated so that the angle
between them, at the listening position, is between 40 and 60 degrees.
MODEL 625C
MODEL 520C
6-1/2” Coaxial In-Ceiling Speaker w/
swivel tweeter
5-1/4” Coaxial In-Ceiling Speaker w/
swivel tweeter
Impedance: 8 ohms nominal
Sensitivity: 85dB
Impedance: 8 ohms nominal
Sensitivity: 85dB
55W RMS/110W Peak Music
Frequency Response: 50Hz-20kHz
9”Dia. x 3-1/2”D
50W RMS/100W Peak Music
Frequency Response: 60Hz-20kHz
7-3/4”Dia. x 3-3/4”D
MODEL 825C
8” Coaxial In-Ceiling Speaker w/
swivel tweeter
Impedance: 8 ohms nominal
Sensitivity: 85dB
60W RMS/120W Peak Music
Frequency Response: 40Hz-20kHz
10-3/4”Dia. x 4”D
For best stereo imaging, we recommend that the units be placed so that the
tweeters are as close as possible to the ear level of a seated listener. As this is
not always possible in keeping with aesthetic design of a particular room, MTX
In-Wall Speakers were designed with a pivoting tweeter which rotates to allow you
to “aim” the high frequencies toward the listening position.
Home Loudspeakers
MONITOR6
MONITOR6C
6-1/2” Center Channel Loudspeaker
19mm Dome Tweeter
6-1/2” Two-Way Home Loudspeaker
19mm Dome Tweeter
Impedance: 8 ohms nominal
Sensitivity: 92dB
Impedance: 8 ohms nominal
Sensitivity: 89dB
100W RMS/150W Peak Music
Frequency Response: 60Hz-20kHz
7 1/2”H x 17 5/8”W x 8”D
100W RMS/200W Peak Music
Frequency Response: 55Hz-20kHz
12 3/4”H x 7 1/2”W x 8 1/2”D
MONITOR10
MONITOR12
10” Three-Way Home Loudspeaker
19mm Dome Tweeter
12” Three-Way Home Loudspeaker
19mm Dome Tweeter
Impedance: 8 ohms nominal
Sensitivity: 92dB
Impedance: 8 ohms nominal
Sensitivity: 94dB
200W RMS/400W Peak Music
Frequency Response: 30Hz-20kHz
31 7/16”H x 11 1/8”W x 14 5/16”D
Normal Dispersion
250W RMS/500W Peak Music
Frequency Response: 25Hz-20kHz
35”H x 13 1/8”W x 16 1/16”D
Dispersion After Tweeter Adjustment
TWEETER LEVEL ADJUSTMENT
The output of the tweeter can be adjusted to compensate for speaker placement/
listening positions that are less than ideal. The 0dB position is designed to pro-
vide the smoothest frequency response on axis. If the high frequency response is
considered to be too strong or too weak, the tweeter level can increased (+3dB
position) or decreased (-3dB position) to suit the listeners preference.
TECHNICAL ASSISTANCE
Otherwise, our technical service representatives can be reached by phone: 1-800-
CALL-MTX or by email: [email protected].
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STEP 1
STEP 4
Using a stud finder (available at low cost at most hardware stores) or other accu-
rate method, locate center point between two studs and mark. Using template
provided, trace hole pattern on surface of wall. Placing a bubble level on either
the horizontal or vertical guidelines of template will assist you in leveling the hole
pattern.
Attach loudspeaker wires to speaker terminals, observing correct polarity (posi-
tive to positive and negative to negative), and position speaker frame into cutout
as shown. Be careful not to pinch wires in the process.
STEP 5
Carefully tighten the six mounting screws. This will cause the mounting wings to
rotate out behind the mounting surface and secure the speaker in place.
STEP 2
Using a sabre saw, keyhole saw or very sharp utility knife, cut hole in wall, fol-
lowing traced pattern.
STEP 6
STEP 3
After the speaker panel is secured tightly, test for sound. When you are satisfied
the speaker is operational, affix grill. As grill is designed for a snug fit, you’ll need
to position one edge into slot first, and press or squeeze around perimeter of grill,
while pushing leading edges into grill slot.
Run loudspeaker wires to sound source location. There are several methods you
can use to accomplish wiring,depending on the construction characteristics of the
room or house. You can add a professional touch to your installation by using a
speaker terminal plate at the source location. Leave sufficient amount of wire at
speaker location (8 to 10 inches) to complete connection.
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