1 Mitek Plaza
Winslow, IL 61089
815-367-3000
800-225-5689
MODEL 625W / MODEL 825W
OWNER’S MANUAL
21A6494
CONGRATULATIONS
We appreciate your choice of MTX In-Wall Speakers. Properly installed and
operated, MTX In-Wall Speakers should provide years of worry-free listening
pleasure. It’s important that you follow each step in this guide carefully to insure
proper installation.
SPECIFICATIONS MODEL 625W MODEL 825W
Frequency Response 48Hz-20kHz 36Hz-20kHz
±3dB ±3dB
Impedance 8 ohms nominal 8 ohms nominal
Power Handling 55 Watts RMS 60 Watts RMS
110 Watts Peak 120 Watts Peak
Music Music
Sensitivity (1W/1m) 85dB 86dB
Woofer Diameter 6-1/2” 8”
Tweeter 25mm Soft Dome 25mm Soft Dome
MTX WARRANTY INFORMATION
MTX In-Wall Speakers purchased in the United States from an authorized MTX
dealer are guaranteed against defects in material and workmanship for a period ten
years from the date purchased by the end user, and limited to the original retail purchaser of the product.
MTX disclaims any liability for other incurred damages resulting from product defects.
Any expenses incurred in the removal and reinstallation of product is not covered by
this warranty. MTX's total liability will not exceed the purchase price of the product.
This warranty is valid in the United States only.
Proof of purchase is required when requesting service, so please retain your sales
receipt and take a moment to register your warranty on line at www.mtx.com.
Mounting Depth 2-7/8” 3-1/4”
Baffle Size (H x W) 12” x 8-9/16” 14” x 10”
PAINTING YOUR MTX IN-WALL SPEAKERS
MTX In-Wall Speakers are designed to accept all types of interior and exterior
paints. Spray or roller application should provide excellent results. A paint shield
is included with all MTX In-Wall Speakers speakers to protect the speakers during
the painting process.
Normal Dispersion
Dispersion After Tweeter Adjustment
OTHER PRODUCTS FROM MTX
In-Ceiling Loudspeakers
MODEL 520C
5-1/4” Coaxial In-Ceiling Speaker w/
swivel tweeter
Impedance: 8 ohms nominal
Sensitivity: 85dB
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
MODEL 625C
6-1/2” Coaxial In-Ceiling Speaker w/
swivel tweeter
Impedance: 8 ohms nominal
Sensitivity: 85dB
55W RMS/110W Peak Music
Frequency Response: 50Hz-20kHz
9”Dia. x 3-1/2”D
Home Loudspeakers
MONITOR6
6-1/2” Two-Way Home Loudspeaker
19mm Dome Tweeter
Impedance: 8 ohms nominal
Sensitivity: 89dB
100W RMS/200W Peak Music
Frequency Response: 55Hz-20kHz
12 3/4”H x 7 1/2”W x 8 1/2”D
MONITOR10
10” Three-Way Home Loudspeaker
19mm Dome Tweeter
Impedance: 8 ohms nominal
Sensitivity: 92dB
200W RMS/400W Peak Music
Frequency Response: 30Hz-20kHz
31 7/16”H x 11 1/8”W x 14 5/16”D
MONITOR6C
6-1/2” Center Channel Loudspeaker
19mm Dome Tweeter
Impedance: 8 ohms nominal
Sensitivity: 92dB
100W RMS/150W Peak Music
Frequency Response: 60Hz-20kHz
7 1/2”H x 17 5/8”W x 8”D
MONITOR12
12” Three-Way Home Loudspeaker
19mm Dome Tweeter
Impedance: 8 ohms nominal
Sensitivity: 94dB
250W RMS/500W Peak Music
Frequency Response: 25Hz-20kHz
35”H x 13 1/8”W x 16 1/16”D
TECHNICAL ASSISTANCE
For additional technical assistance you can visit our website at www.mtx.com.
Otherwise, our technical service representatives can be reached by phone: 1-800CALL-MTX or by email: technical@mtx.com.
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 followed. 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.
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.
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 provide 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.
STEP 1
Using a stud finder (available at low cost at most hardware stores) or other accurate 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.
STEP 2
Using a sabre saw, keyhole saw or very sharp utility knife, cut hole in wall, following traced pattern.
STEP 4
Attach loudspeaker wires to speaker terminals, observing correct polarity (positive 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 3
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.
STEP 6
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.
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