Thiel lCS2.2 Technical manual

THIEL
Model
CS2.2
Coherent
Source@
loudspeaker
system
OWNER
INFORMATION

Congratulations
on
your
purchase
ofthe
THIEL model
CS2,2
loudspeakersystem.It is
the
result
of alon-e
anddedicated
eflorttoprovide
verv
accurate
musicreproduction.Wehaveused
onlythe
highest
quality
components
andtaken
great
careinitsconstruction.Properly
set
upandused
withgood
associated
equipment,
the
CS2.2s
willprovide
vou
with
a
great
deal
ofmusicalenjoyment for
many
years.
Speaker
Placement
The
CS2.2s
arerelativelynon-criticaltoroom
piacerrent
and
will providegood resultsfiom alrnostanywhere. However.
here
are
some
guidelines
tohelp
vou
achievethebest
soundll'clrnrour speirkers.
Speakerplaccrrent
will atlecttheaccuracvo1'tirnbre.
spatial
perfbrmance.
andbass
pertbrmance.
Distancefiom rvalls:
THIEL speakers.ancl most
others.
souncl
best
rtthey
are
placeclwell
away
fronr
allwalls. Such
placement
optimizes
imaginganddepth.anclmusicaltirlbresare
leproduceclu'itlrtheleast
coloration
becauseitallows theinitial
sound
corning
fromthespeakertobedistinctly
separateclintime frclrn
the
se,-'ondarysoundof wallreflections.lf reflections
are
hearcl
too
clurckly
afterthe
prirrarysound.
1'our
braintendstointerpret thenrirs
part
of theinitialsound. causinsthe
pefceived
timbreto
bealteredand
thespatialchafacteristicstobeconfused.
THIEL speakers
will soundbest when
placeri
at
least
one
tbotfrom:heback
wall
anclatleast
3f'eetfiom thesiclewall.Welike
toseethespeakers
threef'eetfiom therear
u'ail
anclfivef'eettiom the
sidewall.If 1'ou
experiment,
)'ou
u'illnotice
amajor'
improvementinopenness
when
the
speakersareeventwot'eettiomtherear
wall
insteadofone.Also.it isnotdcsirablefbrlar-se
objectstobe
placed
near
the
spcakerssincethese
will alsobeasourceof unwantedearly reflections
thatreclr.rceimaging
dccuracy.
Spacing:
Becauseof their
vervwicle.
even
ciispersion
ofenergy.
I'HIEL speakersshouldusuallybe
placetl
fnrthcrapartthan
most.Optimumirlaging
is
usuallyachieved
whenthespeakersandth,:listenerformanequilateraltriangle.althoughthiswill
depend
onthe
width
of theroom-a narrowroomwill recluire closer
placeme
nt.If thespetrkersaretoofarapartfura
given
environment,
there
will tendtclbea
"hole"inthe
rriclclle
ofthesound
jta-ee:
if theyaretooclosetogethcr.thcirlagewill be
compressed
andwill notachieveoptimum
u'idth.
Aiming:We usually
pref'er
the
imagin-e
obtained
when
the
speakersare
pointed
straightaheadratherthan
pointing
towardthe
listener.This
placementproduces
the
largest.mostrratural
soundstage
However.toeingthespeakersinsomewhatrnay
produce
morespecific
placements
of instruments.Also,
if it is
not
possible
to.cet thespeakers
farenough
away
from
thesicle
walls,
atoed-
inposition can
behelpfultoreducethestrengthof wallreflections.
Bass:
Bassresponseisalsoafl-ecteclbyspeaker
placement.
Ingenerirl.when aspeaker
isclose
toa
wall
thebass
responseis
stl'ongerancl
placing
aspeakerinacornerwill makeitevenmoreso.
ln ordertoachieve
properly
balancedbass.
it isnecessary
forthespeakertobeused
intheenvironmentlor which it was designed.THIEL speakersaredesignedto
provide
accuratebass
when
positioned
away
fiom allwalls-the same
position
that
provides
thebestimaging.
Listener
position:
TheCS2.2s
provide
broaddispersionof energyatall
frequenciesancltherefbre
providegood
results
throughout
alargelisteningarea.
Bestimagingis
provided
fbra listenercenteredinfiontof the
speakers.
Optin'rum
phase
and
timealignment
is
provided
only
foraseated listenerwhois
eightormoref-eetarvalrl-rornthespeakels.
ande.rperimentntiort
isnecessctrt'toachieve
thebcstrcsults.
Connecting the Speakers
TheCS2.2's
inputten.r.rinalsarelocatedonthebottomof
thespeaker.Togain iiccesstothese the
speakershouldbe
laidonitsbackorside.
Muke
surethatall(
ontrc(ti()nsdt
(
tight.
It isessential
fbr properperfbrmance thatbothspeakers
in a stereo systembe wiredin the same
polarity.
The
speaker'sinputterminalsare
color
coded
tofacilitatethis.
The wire connected to the red inputterminalof each
speakershouldconnect
totherespective
positive
output
terminalsoftheamplifier:the
wire
connected
totheblack
inputtenninals
shouldbe connectedto the respective
negativeoutputterminalsof theamplifier.
Thespeakersshouldbeconnectedtothe
amplifierwith
high
quality
cable
toensureminimallossof power and
proper
controlbytheamplifier.lf thespeakersarebeing
connectedto a vacuumtube amplifier with various
impedancetaps,
the
ul
ohmtap
will usually give
thebest
results.
Bottom
View
of
Speaker

Stabilizer Pins
Speakers
positioned
on
asoftsurface
such
ascarpetin-s
are
abletorock
backanclfbrth
slightly
andwill vibrate
inreactron
to
thosetbrces
thespeaker
-qenerates
tomove
thedriver
ditrphra-ems.
(Evt:rv
action
hasan
equalancl
opposite
reaction.)
This
speaker
motion
causesaloss
ofrnusical infbnnation
andreduces
the
claritv
of rhe music.
Toelirninate
thisetfbct.
theTHIEL CS2.2
can
beusedwith
the
provrded
stabilizerpins.
The
pins
are
pushed
into
three
pre-
drilledholes
intllebase
ofeachspeaker.
The
pointpenetrates
the
carpt'tand
allowsthe
speaker
torestfirntly
on
thefloor
underneath.
Thethree
pins
provide
astable
foundationwhich
eliminat('s
some
obscuring
of infbrmation
and
procluces
a
cleaner.
more
articulate
souncl.Nopins
arerequiredwhenplacing
the
speakers
onhard
orsmoothsurfaces.
There
aresomeapplications
where
the
stabilizerpins
will nof
improre
thesound
butma1,
actuallv
makeit worse.
Thissituation
occurswhen
thef-looritself
isnot
rigid
iindtherefbrevibrates
when
connected
tothespeakers
via
thestabilizerpins.
We
encourage
you
toexpenment
todetermine
whether
ornot
thisis
thecase.
Werecommend
that
you
determine
the
position
ofyour
speiikers
befrtreinserting
the
pointed
stabilizerpins.
To insert
the
pins.
tiltthespeakerfbrwardandpushthetwobackpinsiullyintothe
["det:pholeslocateclineachbackcorner-otthebase.Thenrock
the
speakerbackrvard
andinsert
thefiontpin.
Finallv.press
finnly on rhe
top
ofthespeaker
with
aslight
rocking
motion
until
the
pinspenetrate
thecalpet
completely.
Tocheckthtrt
the
pins
arefinnly seated.
taptheback
irndside
ofthe
speaker.There
should
benomovement
and
the
speaker
should
f'eel
solidlvirrpltrce.
if thespeakeris
tnovedwith
the
pins
inplace.
care
should
betaken
toliftthe
speakersstraight
up
untilthe
pins
have
cleared
the
calpet.AIso,
tilting
thespeaker
soit'sweight
isresting
onanysinglepin
can
dana-eethe
speaker's
wood
base.
Please
becautioned
thatthe
pointed
pins canbedangerous
if notusedwith care.They
cancausesmalldents
in hqrd,,lood
floors and it ispossible
to damagecarpets
if the speakers
are movecl
incorrectly with thepins in place.
AssociatedEquipment
The
CS2.2
is
avery highquality
soundreproducer
and
will benefitfiom usewith
thebest
associatecl
equiprnent.
Since
ir is
extremely
accurate.it will reveal
sourcesof distortion
generated
elsewhereinthesystem.For
example,
distortionresuiting
fiom
poor
recordings
orinferior
electronics
will bereproduced
accurately.
Also.
the
quality
oftheinterconnect
cables
and
speaker
cableswill significantly
affectthe
perfonnance
ofthe
system.
Power Requirements
It isimportant
tohave
enough
power
to
play
atthelevelyou
desirewithout
distortion.
If high
sound
levels
aredesired,
the
CS2.2s
aredesigned
tobeusedwith
amplifiersrated
up
to250watts
perchannel.
If youplay
the
speakers
moreloudly
than
the
volume
the
arnplifiercan
cleanly
produce,
the
amplifierwill produce
overloacl
(clipping)
clistortion.
This
clistortion
isactually
non-musical
adtlitiottul
energvand
sinceit is
concentrated
inthe
highfrequency
region
where
thespeakeris
least
abletohandle
it,tweeters
canbe
darnagedinextreme
cases.
Keepinmind
thatsoundclLrctlitt
is
usuallymuch
more
important
thansound
cluantitt'.There
can
belarge
differences
inthesonic
peformance
oftwoamplifiers
ofequal
power,
andthisis
moreimportant
thernlarge
dif-ferences
inpower.
Most
everyone
will be
happierwith
a50watt
amplifierof high
sonic
quality
than
witha200u,att
amplifier
ofmediocre
sonic
quality.
For
thisreason,
we
feel
thereisnosubstitute
tbrlistening
tomakeyour
amplifier
decision.
Thequestion
"howmuch
power
doI need?"
doesnothave
asimple
answerbecause
itisnot
determined
onlybythe
loudspeaker's
etficiency,butalsoby the
volume
desired
andthesize
o1theroom.
If all three
factors
areaverage,
about
-50watts
per
channelisrequired.
Each
factor
canraise
orlower
thisamount
byabout
threetimes.
I
)Usually,
people
who
"don't
likemusic
loud"
candecrease
their
porver
toaboutone-half.
People
wholike
music
loud
should
increase
their
power
bytwotimes
ormore. Mostpeople
lall within
anormal
range.
2)A speakerwith
alowS4dBAV-m
efficiency
will require
twicethe
power
of anaverage87dBAV-m
speaker.
A speaker
with
a
high
90dBflil-mrating
will require
onlyhalf
the
power
of anaverage
speaker.
TheCS2.2is
ofaverage
efficiency
(86dB)
and
therefore
requires
anaverageamount
of power.
3)Asmall
roomwillneedlesspowerfbragivenloudnesslevel
than.rlargeroom.Averysmall
roomof
l000cuft(ll'x ll'
with
an8'ceiling)will require
about
halfthe
power
ofanaverage
sizeroom.A lar-eeroom
of 6000
cuft (20'
x 30' with
a l0'
ceiling)will require
twicethe
avera-qe
power.
If thelistening
room
is
connected
toanotherroom
byalarge
open
area,
therequired
power
will increase.
butnot
bythethe
amount
ofthecornbined
roomvrtlume.
Withallthisinrnind.
a
person
who
doesn't
liketoplay
musicvery
loudly
andhas
asmallroom
can
get
high
quality
soundwith
only20watts.whereas
a
person
who
sometimesIikes
toplay
loudly
inalargeroom
mayneed
250watts.
Cabinet Finish Care
THIEL woodcabinetspossess
ahighquality
lacquer
finish
thatis
bothbeautiful
anddurable.
However,
any
wood
finish
canbe
damaged
byexcessive
moisture,
dryness,
ordirect
sunlight.When
cleaning
your
speakers.
avoicl
using
oils,
waxes
or
polishes
that
containsilicone,
suchasPledge
orJohnson's.Werecommend
usingEndust.
If'
y.ou
ov,rta gloss
black
lacquet-
speaker.
Ttlease
refertotheinstuttions inL'ludedwith itsspec,ial
cabinet
care kit.
The
grilles
canbecleaned
ofdust
byusingan
upholstery
attachment
ofa vacuum
cleaner.

Grille
TheCS2.2
grilleisdesignedasanintegral part
of thesystem
toreduceunwanteddiffractioneffects.If youwishto
temporarilyremovethe
grille,pull thebottomof the grille
frame
away
from thespeakeran inchor soandthenlift the
grilleupwardtoremoveit.Whenreplacing
the
grille,first
push
thetopdownontothebaffleandthen
push
thebottom
back.
Service
If your systemrequiresservice.
contact
your
authorized
THIEL dealer.If youneedtocontactthefactory,service
informationandtechnicalsupportis availableat(606)
254-
9421
,Monday-Friday,
8:30a.m.-5:00
p.m.
EastemTime.
We Want You Listening For A Lifetime Removing
theGrille
Usedwisely,
yournewsoundequipmentwill provide
alifetimeof enjoyment.Sincehearing
damagefrom loudnoiseisoften
undetectableuntil it is toolate,THIEL andtheElectronicsIndustries,\ssociation's
ConsumerElectronics
Group
recommendyou
avoid
prolonged
exposure
toexcessive noise.Depending
onroomsizeandamplifier
power,
somehomeaudiosystems
canreach
sound
pressure
levelsin excessof 90decibels with peaks
of overa 10()decibels.Foryourprotection,
thelistbelowidentifies
sound
levelsforvariousnoises.
\
Decibel
Level Examnle
30 Quiet
library,
softwhispers
40 Living room, refrigerator,
bedroomawayfrom traffic
50 Light traffic,normalconversation,
quiet
office
60 Air conditionerat20feet,sewingmachine
10 Vacuum cleaner,
hairdryer, noisyrestaurant
80 Average city traffic,garbage disposals,alarmclockat
two feet
TheFollowingNoises
Can
BeDangerous
Under
ConstantExposure
90 Subway,
motorcycle,
trucktraffic,lawnmower
100 Garbagetruck,chainsaw, pneumatic
drill
120 Rockconcert in frontof speakers.thunderclap
140 Gunshotblast,
jet plane
150 Rocketlaunching
pad
Inf<lrmationcourtesyof theDeafness
ResearchFoundationandtheEIA.
LIMITED WARRANTY
THIEL warrants every
THIEL modelCS2.2systemagainstdefectsinmaterials
and
workmanship
totheoriginal
ownerfor a
period
of ten
years
from thedateof purchase. THIEL will, atnocharge, replace
anydefective
part
andmake
any
repairs
neces-
sarytoensureitsproperperformance whenthedefectiveunitisretumedto us postpaid.
Thiswarrantydoesnotcover
damagedueto accidentor abuseand
isvoid if theunithasbeentamperedwith.
Thiswarrantyisautomaticandnoregistrationisrequired.Thiswarranty
givesyouspecific
legal
rights.You mayalsohave
otherrights which are
particularto your state.
Thefollowing informationisfor yourrecords.
Serial
Numbers
PurchaseDate
PurchasedFrom
THIET
'l
026
NandinoBoulevard
Lexington,
Kentucky40511
-1
207
wd( You
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