Induction Dynamics S1.8iwd User manual
*Page Intentionally Left Blank*
Table of Contents
Introduction 2
General Information 3
Check Speaker and Parts 3
General Care of Your Loudspeaker and Amplifier 3
S1.8iwd Location 3
Speaker Wire 4
Speaker Information 5
S4X Crossover 5
Wide Angle Phase Alignment 6
Multi-Channel (Home Theater) Installation 7
Speaker Placement 7
Tools and Materials You Will Need 7
New Construction Installation 8
Check for Obstacles Inside Walls 8
Locating Loudspeaker Mounting Holes 8
Installing the Easy-Mount Box Into the Wall 9
Installing the Faceplate 12
Connecting to an Amplifier 12
S1.8iwd Specifications 13
Warranty 14
Contacts 15
1
Audio Perfection Realized™
2
Introduction
Congratulations on your selection of the Induction Dynamics S1.8iwd 3-way/dARTS, in-
wall loudspeaker. The S1.8iwd is engineered for smooth performance and high power
handling as a bookshelf or freestanding speaker.
Induction Dynamics dARTS uses complex circuitry and room correction software to carefully
match each speaker to a room’s unique acoustic signature. This provides uniform, precise
sound reproduction throughout the entire listening area, making every seat in the room a
“sweet spot”.
The S1.8iwd incorporates exclusive, patented S4X™ crossover and driver-control
technology, which makes possible virtually perfect integration of drivers which are ideal
for their intended frequencies. S4X also provides greatly increased control over frequency
response, phase, and impedance, resulting in superior performance and imaging. Because
of S4X technology, any of Induction Dynamics’ speakers can be used to build a custom
home theater system. Your S1.8iwd can be combined with any of our main, center, and
surround speakers, be they in-wall, on-wall, or free-standing.
Your S1.8iwd incorporates an 8” Kevlar cone woofer with coated foam surround, a 3” soft
dome midrange, and a 1.125” high-power soft dome tweeter.
WARNINGS:
WARNING! - SHOCK HAZARD
WARNING! - DO NOT OPEN
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
General Information
Please read these instructions thoroughly before attempting to connect and operate the S1.8iwd.
Check Speaker and Parts
Unpack and carefully check each loudspeaker. If you suspect damage from transit, report the
problem immediately to your dealer and/or delivery service. If possible save the shipping
cartons for future use.
General Care of Your Loudspeaker
Whenever changing speaker wires, interconnect wires or power cords, always turn off all
equipment. There are no user serviceable parts inside.
Your speakers come in a high quality finish that is both attractive and durable. To clean, use
a soft, damp cloth. If your drivers become dusty, dust them with a paintbrush, compressed
air, or a brush vacuum attachment. Do not use a strong or abrasive cleaner.
The grille is covered in acoustic cloth. To keep your grille clear of debris, we recommend
you use a lint roller (like you would use on clothes).
S1.8iwd Location
The S1.8iwd mounts between wall studs, and should be placed in accordance with the type
of system you are installing as discussed on page 7. The S1.8iwd was designed in such a
way that the tweeter will be at ear level when the audience is sitting. A pair of S1.8iwd
speakers should be placed six feet or more apart. Speakers should be at the same height
(with the tweeter at ear level).
A certified installer will finalize the placement of your S1.8iwd speakers in accordance with
the Audyssey MultEQ XT software. For more information, refer to the SX7000d instruction
manual.
3
4Audio Perfection Realized™
Speaker Wire
Use approved wire designed for in-wall or exposed use, as appropriate for your installation.
For the S1.8iwd, we recommend using high-quality speaker wire that is 14 gauge or lower,
with easily visible polarity coding to make your connections. The following chart identifies
minimum gauge requirements for various lengths. See your local dealer or installation
contractor for more information.
WIRE LENGTHS / MINIMUM GAUGE REQUIREMENTS
Length (in feet) AWG size and stranding
up to 18’ 14 gauge (19/27)
up to 29’ 12 gauge (65/30)
up to 61’ 10 gauge (105/30)
5
Speaker Information
S4X™ Crossover
The heart of Induction Dynamics is found in the S4X Super Fourth-Order Crossover. The
patented S4X inductively couples crossover coils and optimizes each driver’s performance,
individually and interactively with the other drivers. This greatly increases control over
driver range, frequency response, phase and impedance. Because S4X produces such a
steep crossover slope and thus a flatter frequency response, Induction Dynamics is able
to use the best possible drivers for each range of frequencies. This allows us to sonically
match every speaker in our lineup and to create speaker models able to perform in any
combination and in any acoustic environment.
The S4X optimized frequency response means music that moves dramatically up and down
in pitch will never fade in or out, but rather maintain its power as it seamlessly crosses
over from one driver to the next. It also means that frequencies critical to human speech
(frequencies that deliver consonants like “S” and “C”) will sound as natural coming from
your speakers as they would in real life—making dialogue from movies and television sound
crisp and clearly understood.
Above: The S4X crossover routes audio signal to their intended drivers at specific frequen-
cies (700 Hz, 3800 Hz). Subwoofer crossover points are generally selectable through your
subwoofer amplifier. Induction Dynamics recommends a subwoofer crossover point be-
tween 50 - 60 Hz.
Wide Angle® Phase Alignment
In each crossover region, which spans approximately one octave, the sound from two
different drivers must be added together. This simple fact creates problems in most speakers
because the phase must be matched not just on axis, but also off axis in order to create a
large “sweet spot” for the listener. Most speakers’ drivers are only optimized on-axis using
measurements from a microphone placed at a single point in front of the speaker. This
produces a horizontal zone in which the sound is optimized; however there may be drastic
differences in sound quality along the vertical axis—meaning there may be a loss of sound
quality if you stand up, sit, or otherwise move out of the optimized zone.
Induction Dynamics reduces phase differences both horizontally and vertically through
our Wide Angle® Phase Alignment technology. Because our patented circuitry provides
additional variables that can help control phase, Wide Angle finds the one optimization
solution that produces a flat frequency response along both the horiztonal and vertical axis.
This means you experience true audio perfection whether you’re standing, sitting, or lying
down.
Conventional Speaker
System
Wide Angle® Phase
Alignment
Most conventional speaker designs have a
small and horizontally narrow “sweet spot”
caused by inaccurate phase matching of the
drivers. The best quality sound can be heard
only within a very confined area. Outside of
this area the sound quality can drastically
decrease, becoming muddy or indistinct.
Patented Wide Angle® Phase Alignment
circuitry provides precise phase matching
of the drivers, noticeably expanding the
“sweet spot” both horizontally and vertically.
Listeners are immersed in a large sound field
and enjoy clear, undistorted sound regardless
of their position relative to the speakers.
Approximate
ear level
while standing
Approximate
ear level
while seated
Approximate
ear level
while reclining
6Audio Perfection Realized™
7
Multi-Channel (Home
Theater) Installation
Speaker Placement
5.1 System
A 5.1 system consists of a front left, front right, surround left, suround right, center channel,
and subwoofer channel. An S1.8iwd generally functions as a front left or right, but may
also be used as surrounds. In a home theater configuration, the main left and right channels
should be placed as close to listening height as possible. The surround channels should
be placed to either side of the listening area or behind the listening area at listening height.
6.1 System
A 6.1 system has the same basic channels as a 5.1 system, with the addition of a rear center
channel placed directly behind the listening area.
7.1 System
A 7.1 system has the same basic channels as a 5.1 system, with the addition of a left rear
surround and right rear surround.
A certified installer will finalize the placement of your dARTS speakers in accordance with
the Audyssey MultEQ XT software. For more information, refer to the SX7000d instruction
manual.
Tools and Materials You Will Need
Stud Finder
Pencil
Drill and assorted bits
Level
Drywall knife or keyhole saw
Hand saw
1/4” hex key or hex driver
Slotted Screwdriver
#2 Phillips head Screwdriver
Speaker cable (fire rated if run inside walls)
Flashlight
New Construction Installation
In new home construction, or with walls where drywall has not been applied, it is recom-
mended that you wait until after the drywall application before installing the easy- mount
boxes for the following reasons:
1. The installer gains the control to cut a neat and accurate hole, eliminating possible mis-
takes by drywallers.
2. Drywall around the hole is more likely to be flat. This is especially true if any mudding
is done in the vicinity of the hole. The result is a cleaner final fit around the edges.
3. Possible shimming behind drywall can throw off depth calculations and final alignment
of gasket with the face of the drywall. Drywallers sometimes shim to level out the wall
where studs are out of line.
4. Mud and construction dust is kept from getting into the box.
If circumstances require the easy-mount boxes to be installed prior to drywall, then be
sure the gasket on the front of the boxes protrudes out from the edge of the wall studs by
an amount equal to the thickness of the drywall plus 1/4”. Alternatively, the outside back
of the metal box should be 3 7/8” back from the finished drywall surface.
Check for Obstacles Inside Walls
Check the home’s architectural blueprints to verify that your preferred mounting location
is free from obstacles including extra wall studs, electrical wires, plumbing, and heating
ducts.
8Audio Perfection Realized™
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