Induction Dynamics ID1 User manual

ID1
4-Way/3-Way Loudspeaker with Dual Subwoofers

Table of Contents
Introduction
General Information
Check Speaker and Parts
 GeneralCareofYourLoudspeakerandAmplier
Bass and Loudness Contour Controls
ID1 Location
 AmplierLocation
Carpet Spikes
Speaker Wire
Speaker Information
S4X Crossover
Wide Angle Phase Alignment
Subwoofer Design
Dual Loudspeaker Switch
Two-Channel (Stereo) Installation
Speaker Placement
Connecting Speakers in Stereo Mode
Multi-Channel (Home Theater) Installation
Speaker Placement
ID1 Main Speaker Connection
 SubwooferAmplierInterconnect
Subwoofer Connection
Power Connection
ID1Specications
A2SubwooferSpecications
Warranty
Contacts
2
3
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4
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5
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6
7
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1

Audio Perfection Realized™
2
Introduction
Congratulations on your selection of the Induction Dynamics ID1 dual purpose loudspeaker.
Inordertoprovidegreaterexibilityandcatertolisteners’preferences,theID1includes
a unique switch on the back side of the speaker cabinet. This toggle switches the lower
crossoverinandout,allowinguserstooperatetheirspeakersaseithera3-wayplussubwoofer
(home theater) or as a 4-way (stereo).
TheID1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ID1canbecombinedwithanyofourcenterchannelandsurroundspeakers,bethey
in-wall,on-wall,orfree-standing.
Your ID1 incorporates dual 10” mica-graphite poly cone subwoofers. Induction Dynamics
subwoofers accurately produce bass frequencies clearly and without distortion due to
patentedcircuitrywithinthespeakercabinet.Thespecieddeepbasscapabilityismeasured
using closed-miked and outdoor ground-plane techniques that are free from measurement
distortioncausedbyroomreections.
TheID1isavailableinRosewoodGloss,BlackSatin,andBlackGlossstandardnishes.
Custom paints and stains are also available. Grille fabric is available in 63 room-
complementing colors.
WARNINGS:
WARNING! - SHOCK HAZARD
WARNING! - DO NOT OPEN
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL

3
General Information
Please read these instructions thoroughly before attempting to install and operate the ID1
orA2amplier.
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.Pleaseshipthefoampackingmaterial
to:InductionDynamics,10661Rene,LenexaKS66215.
General Care of Your Loudspeaker and Amplier
Wheneverchangingspeakerwires,interconnectwires,orpowercords,alwaysturnoffall
equipment.Topreventreorshockhazard,donotexposetheampliertorainorexcessive
moisture.Toavoidelectricshock,donotopentheamplier.Therearenouserserviceable
parts inside.
Yourspeakersandampliercomeinahighqualitynishthatisbothattractiveanddurable.
Toclean,useasoft,dampcloth.Ifyourdriversbecomedusty,dustthemwithapaintbrush
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).
Bass and Loudness Contour Controls
Donotusebassorloudnesscontourcontrols.InductionDynamics’subwoofersproduce
very low frequencies without these controls. Use of these controls will make the bass sound
“boomy”,obscurehigherfrequencies,andpossiblycausedamageduetoexcessivecone
excursion.
ID1 Location
TheID1isnormallyfreestandingwithinthelisteningenvironment,butmaybebuiltinto
walls.
Freestandingloudspeakersallowformaximumexibilityinchangingtheirpositionwithinthe
listeningenvironment.Aftertheloudspeakerisconnected,experimentwiththeplacement
in the listening room.

4Audio Perfection Realized™
Amplier Location
TheA2amplierisbestlocatedinanequipment rackor shelving with other audioand
video equipment. It is not recommended for placement behind walls or other limited access
locations,whereservicemayberestricted.
Carpet Spikes
Carpetspikes are not requiredwith the ID1. However, they havebeenprovidedifyou
wouldprefertousethem.Shouldyouchoosetodoso,laytheID1onitsbackside,then
screw the carpet spikes into the threaded holes under the base of each speaker.
Speaker Wire
Useapprovedwiredesignedforin-wallorexposeduse,asappropriateforyourinstallation.
For the ID1, we recommend using high-quality speaker wire that is 12 gauge or lower,
witheasilyvisiblepolaritycodingtomakeyourconnections.Thefollowingchartidenties
minimum gauge requirements for various lengths. See your local dealer or installation
contractor for more information.

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atterfrequencyresponse−InductionDynamicsisableto
usethebestpossibledriversforeachrangeoffrequencies,allowing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specicfrequen-
cies(80Hz,700Hz,3,800Hz).BecausetheS4Xproducessuchasteepcrossoverslope,
Induction Dynamics is able to use the best possible drivers for each frequency range.

6Audio Perfection Realized™
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® eliminates phase differences with respect to height through our Wide
Angle™ phase alignment technology. Because our patented circuitry provides additional
variablesthatcanhelpcontrolphase,WideAnglendstheoneoptimizationsolutionthat
producesaatfrequencyresponsealongtheverticalaxis,whenthemicrophone(orlistener’s
ear)ismovedupanddownvertically.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conned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eld
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

Subwoofer Design
Non-realistic,“boomy”bassfrequenciesaresoprevalentinthehometheaterworldthat
some listeners have never heard a well-tuned subwoofer. The “boom” occurs because every
subwooferhasanaturalresonancepeak—thatis,everysubwooferwillnaturallyproduce
a narrow range of low frequencies at a higher volume than the rest. This “boom” drowns
outhigherfrequenciesyoursubwooferproduces,resultingindiminishedperformanceand
muddy,poor-qualitybass.
InductionDynamics®engineersitssubwooferswithhigh-performancedriversandspecialized
ltercircuitstoeliminateresonancepeaksandproduceafullersoundexpressingallbass
frequencies.
Most subwoofers do not attempt to reproduce ultra-low frequencies because of the distortion
createdbyexcessexcursion.InductionDynamicseliminatesthisdistortionwithapatented
frequency-selectiveexcursionlimiter.Theexcursionlimiterallowsthesubwoofertoproduce
ultra-lowfrequencysoundbutpreventsthedriverfromoverexertingandcausingdistortion
thatcouldruinyourlisteningexperience;thelimiteritselfistransparent,operatingonlyat
specicfrequencieswithoutaudiblyswitchingonandoff.
Dual Loudspeaker Switch
Inordertoprovidegreaterexibilityandcatertolisteners’preferences,InductionDynamics®
includesauniqueswitchontheID1.Thistoggleswitchesthelowercrossoverinandout,
allowing users to operate their speakers as either a 3-way plus subwoofer (home theater) or
as a 4-way (stereo).
Tolistentothesespeakersinstereomode,poweredbyasinglestereoamplier,placethe
switchinthe4-wayposition.Inthismode,apassivecrossoverbetweenthesubwoofersand
theotherdriverswillbeswitchedintothecircuit,meaningallofthedriversineachspeaker
are powered by one signal from each channel of a single stereo amp.
Forhometheaterapplications,iptheswitchtothe3-wayplussubwooferposition.Inthis
conguration,eachchannelpowersthe3-wayportionofyourspeakers(tweeter,mid-range,
andwoofer)whilethesubwoofersarepoweredseparatelybytheA2subwooferamplier.
The home theater 3-way + option allows the speakers to serve in a modern audio/video
surroundsoundsystemwithextendedbasscontrolandresponsecapability.
Fortwo-channelstereo(four-way)installationinstructions,turntopage8.
Formulti-channelhometheater(three-wayplussubwoofer)installationinstructions,turnto
page 9.
7

8Audio Perfection Realized™
Two-Channel (Stereo)
Installation
Speaker Placement
For two-channel stereo listening it is recommended that you place your ID1s a few feet from
thefrontwallofthelisteningarea.Generally,two-channelloudspeakersaresetbetween
sixandtwelvefeetapartinsmalltomediumlisteningrooms.Varythisdistanceuntilyou
achieveanevenlydistributedsoundstagewiththecenterlledin.Tooptimizebassresponse,
varythedistanceoftheID1sfromwallsandcorners,payingspecialattentiontoanylow
frequency nulls in the listening area.
InductionDynamicsdriversarecarefullyselectedandoptimizedforuniformpolarresponse.
This means that the tonal quality of the speakers remains the same off-axis, so it is not
necessaryto“toein”thespeakers.However,duetovariationsinthepatternsofreections
fromoneroomtoanother,youmaynoticeaslightimprovementinthesoundstageatthe
centerlisteningpositionifthespeakersare“toedin”.Startwithapproximately20degrees
each,andexperimentwithdifferentangles.Thebestanglewillvarywithdifferentlistening
rooms,dependingonthepatternofsonicreections.
Connecting Speakers in Stereo Mode
In normal 2-channel operation, one stereo amplier is used.  For this conguration, the
jumperbarsonthebindingpostsshouldbeleftinplaceandtheswitchonthebackofthe
ID1 should be set to “Four-Way Loudspeaker”. The speaker cable can be connected to
eithertheupperorlowerbindingposts.Connectthered(positive)amplierposttothered
(positive)speakerpost.Connecttheblack(negative)amplierposttotheblack(negative)
speaker post.  Recommended speaker wire size will depend on the distance from your
ampliertoyourspeaker(seechartonpage4).

Multi-Channel (Home
Theater) Installation
Speaker Placement
TheID1makesidealmain(leftandrightchannel)speakersforahometheater,whilealso
providing two dual 10” subwoofers powerful enough for a large room. Two ID1s mean a
totaloffoursubwoofers.Usingmultiplesubwoofersimprovesefciency,lowersdistortion,
andreducestheincidenceoflowfrequencynullsinthelisteningarea,resultinginabetter
overallaudioexperience.
5.1 System
A5.1systemconsistsofafrontleft,frontright,surroundleft,suroundright,centerchannel,
andsubwooferchannel.ApairofID1sprovidefrontleft,frontright,andsubwooferspeakers.
Inahometheaterconguration,thecenterchannelshouldbecenteredbetweentheleftand
rightfrontchannelsandasclosetolisteningheightaspossible,eitheraboveorbelowthe
screen (preferably below the screen). 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.
9