''speaker
wire.
' lfthewiringtothe
speakers
will
belonger
lhan
aboul20
feet,heavier16-gauge
zipcordis
prelerred.
The
useofadequatelyheavy-dutywiringisespeciallyimpor-
lant
ilyou
areusingspeakersoflowimpedance
orlwo
pairs
olsoeakers
wiredin
oarallel.
Tomakeconnections,separatethetwo
conductorsof
lhecord,stripoffaboutahalf-inch
(1
cm)ofinsulationfrom
each,and
in
eachconductortwisttheexposedwirestrands
logether.Fully
depressthecoloredtabbelowtheconnecling
lerminalin
order
to
openup
the
sma
Iholein
thelerminai;
insertthe
bared
wireintothehole.
and
release
lhetab.The
lerminalwill
grasp
thewire
and
holditin
pace.
Flepeatfor
eachconductorThen
check
tobesure
thatnoloose
strand
ol
wireistouching
anyadjacent
terminal
Phasing.
Slereospeakersshouldoperate
in
phase
witheacholherin
order
to
yie
d agood
stereo
rmage
and
lo reinforce
ralherthancanceleachother's
outDutallow
trequencies.
ll
your
speakersareeasiy
moved.
phasing
can
easilybechecked.
N.4ake
theconnectionstothespeakers,
place
the
speakers
lace-lo-lace
onlyafew nches
apart,
play
some
music.
and
listenThen
swaptheconnectionol
thetwowires
at
the
backof
oneol the
speakers,and
listen
agarn.The
connection
which
produces
thefulest,
boomiest
bass
outpul
isthe
correctone.Connect
thewires
securelyto
thespeakerterminals,beingcarefultoavordleavingloose
strandsolwirewhichmightlouchlhewrongtermrnal
and
crealeapartial
short-circuit.andthenmovethe
speakers
totheirintendediocations.
lfthespeakerscannoleas y besel
face-tojace
then
phasing
mustre
y onthe polarily
ol theconnectingwires
NotethattheSPEAKEFSterminasontheampiilierare
color-coded:ineachchannethelerminawithlheredtab
has
positive + polarity
andtheblackterminalisnegative
''
- '.
Thelerminalsatthe
rear
ol thesoeakersarealso
marked
for
polarity,
erther
vra
red
andblackconnectorsor
by
labels;
* ,
8().or
1lor
positrve. .G,or0fornega-
live.As
a
genera
rulethe
pos
trve
(red)
terminal
onlhe
amDlifier
istobeconnected
tothe
oosrtrveterrrinalofthe
speaker,
in
eachchannel
To
lacrlitatethis.
lhelwoconduc-
lors
compnsrng
the
speaker
wrreIn
eachchannearediffer'
ent,erlher
Inthe
colorol thewirellself
(coOper
vs.silver)
orinlhe
presence
ofa smallridgeornb
pattern
onthe
insulation
oloneconductor.Usethls
oatlern
to
establish
conslstenlwiringlo bothspeakersoJa stereo
pair.
Thusif
you
connectthecoppercoloredwire
(or
rbbedinsulalion)
to
the
red
amplifierterminal
in
the
left
channe,dothesame
inlheright
channel.
And
at
lhe
otherendofthe
wire,if
you
connectthecopper-coloredwire
(or
theribbedinsulation)
lotheredorpositive
terminalontheleft-channel
speaker,
dothesamealtherighl-channelspeaker.
ConnectingAdditionalSpeakers.Theeasiestway
toconnecttwoormore
pairs
ofspeakerstothe30204is
tooblainanoutboardSpeakerSelectorswitch,acommon
and
inexpensive
accessory
item.
Connectshorl
wiresfrom
theamplitier'sspeaker
termina
stothe amplilier'lerminals
olthesDeakerswitch.andthenconnect
wirestrom
lhe
swilchtoeachselofspeakers.Usuallytheswitch
will
permlt
you
toselecl
your
main
stereospeakers,a second
(and
per-
haps
lhird)
pair
ofextensionspeakers,orlwopairs
oper-
atingsimultaneously.
llyou
have
asecond
pair
ofspeakerslocatednear
thelirst
pair
inthe
same
room
andoperalingin
parallel
wlth
them,thentheym!sl becorreclly
phased
wilh
respect
1othe
lirst
pair
aswellaswilheach
olher.
Bulilthesecond
pair
ol
speakersislocaledawayfromthefrrsl
parr
(e.9.,
in
another
room),
their
phasing
neednot
beconsistentwiththatol the
lirst
pair.
(As
wilh
anystereo
pair
ol speakers.they
still
must
bein
phase
with
eacholher.)
9.SOFTCLIPPINGI'This
switchaciivateslheunique
NAD
SoflClippingcircuittoreduce
distortionwhenthe
amplilieris
overdrivenbeyonditsrated
power.
ltmaybeleft
OFFfortesting
orfor
extendedlow-levellislening.
But
in
general
werecommend
thalii be
switchedON,especially
when
playing
music
withhigh
peak
levels.
10.
ACCONVENIENCI
OUTLETS.
(Where
applicab
e.)
TheACline
cordsofotherstereo
components
may
be
plugged
intothese
outlels.TheSWITCHED
outlet
isinlend-
edforanall-eiectronic
product
(e.9.,
aradiotuner,
equalizer,
orothersrgnal
processor).
anditwillbelurnedonand
o{f
bythemainPOWEFI
buttononthefrontolthereceiver.
The
UNSWITCHED
outet
isintended
topower
any
product
involvingmechanical
operation
(e.9.,
aturntableortape
deck):suchdevices
shouidbeswitchedonandoflwilh
theirown
power
swrlches
FRONTPANEL
CONTROLS
1.POWER.Depresstoswitchontheamp
ilier
andany
olherequipment
plugged
ntothe
SWITCHEDconvenience
outletsonthe
rear
panelToswrtch
olithe
power,
depress
the
butlonagainand
releasert
llyoupreleryoLr
mayleavethe
30204s
POWER
switch
permanenty engagedand
useanexternalswilch
(such
asa
timer)toturnthe
power
onandolf
2.PHONES.Plug
stereoheadphonesinhere The
circuil
wrll
provideproper
drivesignals
for
allconventional
stereo
headphonesregardless
01theirrnpedancewith
iust
oneexceplion:electrostalicheadphones
us!allyaresup-
plied
withanadapterboxwhichmust
beconnecteddrrecliy
to
lhespeakerterminalsaltherear.
Before
plugging
convenlional
headphonesinto
the
PHONES
lack,
turndowntheVOLUI\.4E
control
for
safety.
And
when
you
arenotlistenrnglo lhe
headphones
itiswlse
tounplugthem
frorn
lhePHONES
lack Otherwise.
when
lislening
toloudspeakers
you
mightturn
up
thevolume
10a
levelwhich
woudfeed
excessrvelystrongsignalstothe
headphones
anddarnagerhem.
3.BASS.The
Bassconlroladjuslstherelaiivelevel
oJ
thelowlrequenciesInthe
sound.
The
electrical
response
01
theamplilierisflattestwhenthe
conlro
rs
sel
inthe
detent
althe12oclock
pos1lion.
Rotation
oftheknoblolherighl
(clockwise)
increasestheleveloflow-trequencysounds,
and
rolation
counter-cockwisedecreasestheirlevelAdjust
illo achievethetonalbalancewhichsoundsmostnaturalto
you.
Youwillnotethalatmoderaterotationslhe
eltectoi the
BasscontrolusuallVissubt
ebecause
ils
acron
rs
confrned
tothelowestaudibieirequenc
es.On
y at
largerotations
awayfromcenterislhere
as!bslantlalboostorcutat
the
mid-basslrequencies
whichare
prevalent
inmusic.
4.THEBLE.TheTreblecontroiadjuststherelalive
level
ol thehighlrequencles
inthesound.Theeleclrical
response
ofthe
amp
ilier
isllatlestwhenthecontrolissel
inthe
detentatlhe
12
oclock
position.
Botationol theknob
tolhe
rlght
(c
ockwise)increasestheleveiol highJrequency
sounds.and
rotation
counter-clockwisedecreasesthelr
leve.Adlusliltoachievethelona balancewhichsounds
mostnaturalto
you Youwill
notethalboostingtheTreble
increases
thebrilliance
andclaritvofdelaisin
lhesound,
butalsomakesanynoisemore
prominenl.
Cultingthelreble
makes
lhesoundmellower
andsuDoresses
hiss
and
rec-
ordsurlace
noise,
buttoomuchTreblecutwillmakethe
sounddull.
5.BALANCE.
Adiuststherelatlyelevelsofthe eit
and
righl
channels.Adetentatthe12
oclock
posrtion
marks
the
point
olequalbalance.Flotationtotheright
(c
ockwrse)
decreaseslhe
leveoftheleftchannelsoihaionlvlheroht
