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BUILDING YOUR OWN SUBWOOFER ENCLOSURE
Since the subwoofer enclosure is so critical to getting the best performance from your EX
subs, you should ask yourself the following questions:
1. Do I really enjoy working with my hands?
2. Do I have good woodworking and mechanical skills?
3. Do I have or have access to woodworking and electrical tools?
4. Do I have a solid understanding about musical reproduction in an automobile?
• If you answered "NO" to any of the above questions, we recommend you choose one of
these two possible alternatives. First, you may choose a pre-built subwoofer enclosure
available from companies like Obcon, ADD and Q-Logic or an enclosure kit from
BassLine and other manufacturers. The second alternative is to have your authorized
Polk Audio dealer design and build a woofer box for you.
• If you answered "YES" to all of the above, let’s review some basics before you begin.
Effective planning will help ensure that your system performs the way that you want it
to. Every car is different, and everyone has slightly different musical tastes. You need to
make informed decisions before you begin to build your system. Polk EX subwoofers
are designed to work in a wide variety of enclosures, and each enclosure design has a
unique list of pros and cons. The following is the basic information about the most
popular automotive subwoofer enclosures.
It is not possible to provide all of the information for enclosure options here. This
manual will give you enough information to build a great sounding enclosure. If you
are interested in a greater choice of enclosure designs, your Polk EX Series II dealer
has extensive experience designing woofer boxes and will be more than happy to work
with you. If you prefer, you can call our Customer Service Department from 9AM to
5PM, Monday through Friday, Eastern Time at (800)377-7655 or email us at
[email protected].
EX SERIES II SUBWOOFER FEATURES:
The EX Series II subwoofers use the latest technologies and highest quality materials to
provide you with the best bass response and greatest reliability possible. The EX Series II
subwoofers have been optimized to give skull-collapsing performance from a wide variety of
enclosure types. Some of their design elements are:
• 1mm thick mineral filled polymer composite cones – ultra stiff and strong to
withstand the enormous pressures generated inside subwoofer enclosures without cone
breakup and distortion.
• Injection molded polypropylene dustcap – prevents distortion due to the build up of air
pressure behind the cap.
• Rubber surrounds – provide a much tighter and more durable air seal behind the
cone than foam, paper or cloth surrounds, for deep, tight, quick bass. In addition,
rubber surrounds do not dry rot like foam surrounds.
• Four layer, 2" voice coil (EX10 and EX12 only) – handles heat generated when your
amp is really cranking.
• Vented pole piece – lets air circulate over the voice coil to keep it cool and in control
even when the bass is really thumping.
