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REFERENCE
860w
1060w
1062w
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1262w
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REFERENCE
THANK YOU
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an Infinity
Reference Series subwoofers are designed
to suit a broad range of car audio
applications and can be used in a wide
variety of enclosure types to produce
extended,powerful bass in a limited amount
of vehicle space.To ensure maximum
subwoofer performance,it is strongly
recommended that installation be left to
a qualified professional.Although these
instructions explain how to install a
Reference Series subwoofer in a general
sense,they do not show box-construction
details or exact installation methods for
your particular vehicle.If you do not feel
that you have the necessary experience,
do not attempt the installation yourself,but
instead ask your authorized Infinity dealer
about professional installation options.
Remember to keep your sales receipt with
this manual in a safe place so that both are
available for future reference.
Reference Series subwoofer.
for choosing
WARNING
Playing loud music in an automobile can permanently damage your hearing,as well as
hinder your ability to hear traffic.The maximum volume levels achievable with Infinity
speakers,combined with high power amplification,may exceed safe levels for extended
listening.Using low volume levels when driving is recommended.Infinity Systems
accepts no liability for hearing loss,bodily
injury or property damage as
a result of use or misuse of this product.
YOUR CAR
AND BASS
REPRODUCTION
Depending on the size of the vehicle’s
interior listening space,reproduced bass frequencies below 80Hz are boosted by nearly
12dB per octave as frequency decreases in
the car.NOTE:This effect,known as the vehicle’s transfer function,plays an important
part in shaping the
overall in-car response and is displayed
graphically, along with freespace response,
on the enclosed data sheet for your
Reference subwoofer.
CHOOSING AN
ENCLOSURE
Reference Series subwoofers are optimized
to perform best in small sealed,vented and
prefabricated band-pass enclosures. While
infinite-baffle mounting of Reference Series
subs is possible,power handling will be
greatly compromised because there’s no
enclosed volume of air to prevent the speaker’s cone from moving past its limit.For this
reason,infinite-baffle mounting
is not recommended for Reference Series
subwoofers.
You should choose the enclosure you will use
based on the type of music you listen to,how
much amplifier power you will use for the
subwoofer and how much space inside the
vehicle you can devote to a
subwoofer enclosure.
Because a sealed enclosure provides the
most control over the woofer’s movement,
a woofer mounted in a sealed enclosure
will handle more power than a woofer
mounted in another enclosure type.Sealed
enclosures provide more accurate sonic
reproduction than other enclosure types,
so they are well suited to all types of music.
Sealed-enclosure construction
is straightforward and there are many
prefabricated sealed enclosures available.
Optimum sealed enclosures are always
ENGLISH
smaller than other types of enclosures
optimized for a particular speaker, so they
require the smallest amount of space inside
the vehicle.
Vented enclosures provide better efficiency
in 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.
Because vented enclosures require the
volume of the enclosure and the size of
the port to have a specific relationship
with the characteristics of the woofer,
the enclosure must be built exactly to the
specifications provided.While there are
some prefabricated vented boxes available,
matching a prefabricated box to a particular
woofer is difficult.If you wish to use a vented enclosure,it is strongly recom-mended
that you have your authorized Infinity dealer
build it or verify that your design is correct
if you wish to build it yourself.An optimum
vented enclosure is always larger than the
optimum sealed box for the same woofer and
will require more space inside the vehicle.
Band-pass enclosures often provide the most
output available from any amplifier and subwoofer combination at the expense
of sonic accuracy. If sheer SPL (soundpressure level) is what you desire most,
choose a band-pass enclosure.Band-passenclosure design is very tricky, and the
aid of a computer and enclosure design software is necessary. If you are an
experienced installer or have some woodworking experience,you may wish to build
the enclosure described in the enclosure
design sheet included with this woofer.
Fortunately,there are many prefabricated
band-pass boxes available and they are
all optimized to extract the most output possible from any woofer. Band-pass
enclosures can be quite large and may
require a lot of space inside your vehicle.
POWER HANDLING
LIMITATIONS
The power handling capability of any woofer
is related to both its ability to dissipate heat
and the maximum excursion limits of its
cone.Once the speaker’s voice coil moves
outside the magnetic gap,power can no
longer be converted into motion, and all the
amplifier’s power is converted into heat in
the voice coil.This voice coil heating is the
largest detriment to speaker longevity, so
overexcursion should be avoided.Since
speaker-cone excursion is different for each
type of enclosure,power handling is different for each enclosure.
Sealed enclosures exert the most control
over the motion of a subwoofer because the
air inside the box acts like a spring against
the motion of the woofer cone.Larger boxes
allow for more excursion,thus providing
more low-frequency output for the amount
of power used.When placed in a sealed box
much larger than the Vas of the subwoofer,it
will perform as if it were in an infinite-baffle installation.
Vented and band-pass enclosures have the
lowest amount of excursion for the amount
of sound output.This is a result of port output reinforcing the sound output from the
woofer. The mass of the air contained in the
port provides an acoustic load on the
woofer’s cone at the tuning frequency,and
this added mass decreases woofer-cone
excursion.Vented boxes do not provide
adequate woofer control when driven below
the tuned frequency (Fb),so proper design is
important.A vented band-pass box will have
the lowest overall cone excursion,
provided a subsonic filter is used.
• Voice coil overheating and burning due to
overexcursion are often caused by overdriving an amplifier into “clipping.”A
severely clipped signal,or square wave,
contains nearly twice the power of a clean
sine wave at the same level.Bass that
sounds broken up and distorted at higher
volumes is usually indicative of an
amplifier that is clipping and being asked
to deliver power beyond its ability.
• Infinite-baffle or “free air” mounting
applications allow for greater cone
excursion than subwoofers mounted in
an enclosure.In order to compensate,
the power handling of the subwoofer
will likely be half its rated power in this
application.
• Study the excursion curves on the enclosed
Reference Series data sheet
and note the differences for different
enclosure applications.The type and
size of box used will produce different
excursion demands on the enclosed
subwoofer and,consequently,different levels of power handling.As long as the recommended enclosure parameters are used,
the subwoofer will perform properly in its
enclosed environment.However,any
design deviation may result in less than
optimum performance,and may also
subject the subwoofer to overexcursion
(i.e.,the voice coil leaving the gap),which
can eventually damage the speaker. For
additional help with this issue,please
contact your authorized Infinity dealer.
SPECIFICATIONS
860w 1060w 1062w 1260w 1262w
8" (200mm) 10" (250mm) 10" (250mm) 12" (300mm) 12" (300mm)
Sensitivity
@ 2.83V/1m: 91dB 91dB 94dB (2 ohms) 93dB 96dB (2 ohms)
Power Handling (RMS): 250W 275W 275W 300W 300W
Power Handling (Peak): 1000W 1100W 1100W 1200W 1200W
Frequency Response: 30Hz – 400Hz 25Hz – 400Hz 25Hz – 400Hz 23Hz – 400Hz 23Hz – 400Hz
Impedance: 4 ohms 4 ohms 2 or 8 ohms 4 ohms 2 or 8 ohms
Voice-Coil Diameter: 2" (51mm) 2" (51mm) 2" (51mm) 2" (51mm) 2" (51mm)
Mounting Depth: 5-3/16" (131mm) 5-7/8" (149mm) 5-7/8" (149mm) 6-7/16" (162mm) 6-7/16" (162mm)
Overall Diameter: 8-7/16" (214mm) 10-7/16" (264mm) 10-7/16" (264mm) 12-3/8" (314mm) 12-3/8" (314mm)
Cutout Diameter: 7-5/16" (186mm) 9-1/4" (234mm) 9-1/4" (234mm) 11-1/8" (282mm) 11-1/8" (282mm)
A valid serial number is required for warranty coverage.
Features,specifications and appearance are subject to change without notice.
These products are designed for mobile applications and are not intended for connection to the mains.
Declaration of Conformity
We, Harman Consumer Group, Inc.
2, route de Tours
72500 Château du Loir
France
declare in own responsibility that the products described
in this owner’s manual are in compliance with technical
standards:
Harman Consumer Group, Inc.,250 Crossways Park Drive,Woodbury,NY 11797 USA
www.infinitysystems.com
© 2008 Harman International Industries,Incorporated.All rights reserved. • Part No.REFX60SUBOM 8/08
Infinity is a trademark of Harman International Industries,Incorporated,registered in the United States and/or other countries.
®
EN 61000-6-3:2001
EN 61000-6-1:2001
Klaus Lebherz
Harman Consumer Group, Inc.
Château du Loir, France 8/08
ENGLISH
Harman Consumer Group, Inc.,250 Crossways Park Drive,Woodbury,NY 11797 USA
www.infinitysystems.com
© 2008 Harman International Industries,Incorporated.All rights reserved. • Part No.REFX60SUBOM 8/08
Infinity is a trademark of Harman International Industries,Incorporated,registered in the United States and/or other countries.
®
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