
PTK-40
INSTALLATION MANUAL
Congratulations!
With the purchase of an MB QUART PTK-40 WideSphere Kit,
you have purchased a technically sophisticated, high-quality
product. MB QUART feels confident that you will enjoy your new
Tweeter System. If you are not having the installation carried out
by an Authorized MB Quart Dealer, please read the following
installation instructions carefully.
Specifications:
Tweeter Diameter: 1.6” / 40mm
Power Handling: 50 -100 watts
Frequency Response: < 32,000 Hz
Impedance: 4-Ohms
Crossover Frequency: 3,000 Hz
Features:
- Two 40mm WideSphere two piece Inverted Titanium Tweeters
- Best in Class Off Axis Performance
- High Energy Neodymium Tweeter Ring
- Flush and Surface Mount Adaptors
- Two 12dB WideSphere In-Line Crossovers
- Selectable 0dB, -3dB & -6dB Control
INPUT
Premium PTK-40
12dB WideSphere Crossover
The Premium Series WideSphere’s 180-degree sound dispersion
technology addresses a speaker’s inherent directional dispersion
and beaming problems. WideSphere eliminates high frequency
beaming permitting your MB Quart speakers to be positioned and
mounted almost anywhere. Now you can be seated almost
anywhere too.
This unique asymmetrically shaped, pure RoHs titanium based,
inverted dome is bonded to MB Quart’s proprietary closed-cell
tangent-edge tweeter surround using aerospace adhesives. The
end-result is a tweeter with off-axis dispersion 98% nearly identical
to an on-axis. This outstanding off-axis performance eliminates
speaker directionality and high-frequency beaming permitting you
and your MB Quart speakers to be positioned almost anywhere. So
now every seat is the best seat for hearing music. That is, as long
as you have MB Quart loudspeaker’s with WideSphere Technology.
OUTPUT

CONTENTS
2 x Crossovers
INPUT
Premium PTK-40
12dB WideSphere Crossover
61mm / 2.402” outside diameter
OUTPUT
2 x Tweeter Assemblies
2 x Angle Mounting Cups
2 x Mounting Brackets
FLUSH MOUNT
CUTOUT
55mm / 2.165” cutout diameter
TOP MOUNT
CUTOUT
39.37mm / 1.55” cutout diameter
2 x Mounting Brackets
8 x Crossover Mounting Screws 8 x Crossover Mounting Washers
4 x Mounting Bracket Screws
4 x Mounting Tabs
2
4 x Mounting Bracket Washers
4 x Cup Mounting Screws

INSTALLATION
CONNECTIONS:
RED
BLACK
RED
BLACK
MOUNTING CONFIGURATIONS:
Mounting Surface
Flush Mount Method
Mounting Brackets
Insert Jumper Pin onto
desired output pins.
-3dB
0dB -6dB
Pins
IN+
IN-
INPUT
Premium PTK-40
12dB WideSphere Crossover
-3dB
0dB -6dB
+T
-T
OUTPUT
Jumper Pin
RED
BLACK
RED
BLACK
Mounting Bracket Washers
Cup Mounting Screws
Surface Angle Mount Method
Mounting Surface
Top Mounted Method
Mounting Bracket Screws
Mounting Surface
Mounting Brackets
Mounting Bracket Washers
Mounting Bracket Screws
3