YOUR CARAND BASS REPRODUCTIONCHOOSINGAN ENCLOSURE
WARNING: Playing loud music in an automobileDepending on the size of the vehicleOs interior lis-Reference Series subwoofers are optimized Because vented enclosures require the volume
can permanently damage your hearing, as well astening space, reproduced bass frequencies belowto perform best in small sealed, vented and of the enclosure and the size of the port to have a
hinder your ability to hear traffic. The maximum80Hz are boosted by nearly 12dB per octave asprefabricated bandpass enclosures. While specific relationship with the characteristics of the
volume levels achievable with Infinity speakers,frequency decreases in the car. NOTE:This effect,infinite-baffle mounting of Reference Series woofer, the enclosure must be built exactly to the
combined with high power amplification, mayknown as the vehicleOs transfer function, plays subs is possible, power handling will be greatly specifications provided. While there are some
exceed safe levels for extended listening. We an important part in shaping the overall in-carcompromised because thereOs no enclosed prefabricated vented boxes available, matching
recommend using low volume levels when response and is displayed graphically along withvolume of air to prevent the speakerOs cone a prefabricated box to a particular woofer is
driving. Infinity accepts no liability for hearingfreespace response on the enclosed data sheetfrom moving past its limit. For this reason, we difficult. If you wish to use a vented enclosure,
loss, bodily injury or property damage as a resultfor your Reference subwoofer.do not recommend infinite-baffle mounting forwe strongly recommend having your authorized
of use or misuse of this product.Reference Series subwoofers.Infinity dealer build it or verify that your design
is correct if you wish to build it yourself. An
You should choose the enclosure you will useoptimum vented enclosure is always larger than
based on the type of music you listen to, howthe optimum sealed box for the same woofer and
much amplifier power you will use for the will require more space inside the vehicle.
subwoofer and how much space inside the
vehicle you can devote to a subwoofer enclosure.Bandpass enclosures often provide the most
output available from any amplifier and
Because a sealed enclosure provides the mostsubwoofer combination at the expense of sonic
control over the wooferOs movement, a wooferaccuracy. If sheer SPL (sound-pressure level) is
mounted in a sealed enclosure will handle morewhat you desire most, choose a bandpass
power than a woofer mounted in another enclosure. Bandpass-enclosure design is very
enclosure type. Sealed enclosures provide moretricky and the aid of a computer and enclosure
accurate sonic reproduction than other enclosuredesign software is necessary. If you are an
types, so they are well suited to all types ofexperienced installer or have some woodworking
music. Sealed-enclosure construction is straight-experience, you may wish to build the enclosure
forward and there are many prefabricated sealeddescribed in the enclosure design sheet included
enclosures available. Optimum sealed enclosureswith this woofer. Fortunately, there are many
are always smaller than other types of enclosuresprefabricated bandpass boxes available and
optimized for a particular speaker, so they requirethey are all optimized to extract the most output
the smallest amount of space inside the vehicle.possible from any woofer. Bandpass enclosures
can be quite large and may require a lot of space
Vented enclosures provide better efficiency in inside your vehicle.
the 40Hz�50Hz range but this efficiency comes
at the expense of sound in the lowest octave
(below 40Hz) and at the expense of some control
and power handling. If you are using a small
amplifier, a vented box will provide more bass
output from less power. Vented enclosures are
also well suited to a variety of music types.
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