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| Fathom IWSPage 4
FCC COMPLIANCE STATEMENT
NOTE: is equipment has been tested and found to comply with the limits of Part 15 of the FCC
Rules. ese limits are designed to provide reasonable protection against harmful interference in
a residential installation. is equipment generates, uses and can radiate radio frequency energy
and, if not installed in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment o and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit dierent from that to which the
receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
TABLE OF CONTENTS
Important Safety Instructions: ......................................... 2-3
Introduction:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Product Overview: ...................................................... 5
Placing your Fathom IWS in Your Listening Room: ...................... 6-10
Front Control Panel Layout: ..............................................11
Rear Control and Connector Panel Layout: ................................11
Front Panel Controls in Detail: ........................................12-15
Connecting your Fathom IWS(s): ......................................16-23
Recommended Setup Procedure: ......................................24-28
Frequently Asked Questions: ............................................ 29
Troubleshooting: ...................................................... 30
Limited Warranty / Service Information: ..................................31
Specications: ......................................................... 32
INTRODUCTION
Congratulations on your purchase of a JL Audio Fathom powered subwoofer
system. is product has been critically engineered to deliver exceptional
performance in your home theater or audio system for many years to come.
As a company, we are intensely committed to core research into
high-performance loudspeaker and amplier technologies. JL Audio’s long
excursion subwoofer driver designs are widely considered as reference standards for
linear behavior and high output. We have also focused our eorts to create powerful
amplier and signal-processing technologies specically aimed at delivering
exceptional low-frequency performance. Your Fathom combines these core
disciplines within a compact, beautifully craed package to deliver an unparalleled
listening experience.
We sincerely thank you for your purchase and invite you to read this
manual thoroughly in order to achieve the highest level of performance with
your Fathom IWS subwoofer system. Enjoy.
JL AUDIO TECHNOLOGIES INCLUDED
IN Fathom IWS SUBWOOFERS
DMA-Optimized Motor System
DMA is JL Audio’s proprietary Dynamic
Motor Analysis system aimed at
improving dynamic motor behavior. As a
result of DMA optimization, loudspeaker
motors remain linear in force over an
extreme range of excursion and also
maintain a highly stable xed magnetic
eld over a wide power range. is leads
to vastly reduced distortion and faithfully
reproduced transients... or put simply:
tight, clean, articulate bass.
Concentric Tube Suspension
(U.S. Patent #5,734,132 & #6,095,280)
e suspension technology of the Fathom
IWS driver permits high linear excursions
within a very shallow frame design.
Floating-Cone™ Attach Method
(U.S. Patent #6,501,844)
is assembly technique ensures proper
surround geometry in the assembled
speaker for better excursion control and
dynamic voice coil alignment.
Plateau-Reinforced Spider Attachment
(U.S. Patent #6,118,884)
is high-integrity suspension attachment
relieves stress from the spider material at
high-excursions for enhanced reliability.
High-Damping Feedback Circuit
(U.S. Patent #6,441,685)
is proprietary, discrete control circuit
design allows our Class D switching
ampliers to maintain an excellent
damping factor for improved transient
behavior and delity.