Wharfedale Pro PI-C6 User manual

Specifications
ServiceCentres
The name ‘WHARFEDALE' is a registered trademark of Wharfedale International Limited.
Wharfedale has a policy of continuous product development and reserves the right to
change specification without notice.
Wharfedale is a member of the InternationalAudio Group.
www.wharfedale.co.uk
USA
IAGAmerica,Inc.
15WalpoleParkSouth
Walpole
MA02081
Tel:[phone]
CANADA
KorbonTradingLtd
6800KitimatRoad
Units19-20
Mississauga
Ontario
Tel:[phone]
UK
WharfedaleInternationalLtd.
IAGHouse,Sovereign Court,
ErmineBusinessPark,
Huntingdon,PE296XU,
England.
Tel:[phone]
Fax:[phone]
BRITAIN'SMOSTFAMOUSLOUDSPEAKERS
PacificArchitectural
Loudspeakers
Instruction Manual
PI-C6
PI-C6ST
PI-C8
PI-W6
PI-W8
Dimensions Overall
H x W x D mm
H x W x D inches
Nominal Impedance
Recommended Amp. Power
Sensitivity (1W@1m)
Frequency Response
Bass Unit
Midrange Unit
Treble Unit
250 mm circular
x 102 mm deep
9.85 (circ) x 4.0
4/6/8 Ohms
5-80 Watts
90 dB
60 - 20 kHz
150 mm kevlar
PI-C6
25 mm textile
250 mm circular
x 111 mm deep
9.85 (circ )x 4.4
2 x 8 Ohms
5 -50 Watts
87 dB
60 - 20 kHz
150 mm kevlar
PI-C6ST
2 x 25 mm textile
288 mm circular
x 128 mm deep
11.3 (circ) x 5.0
4/6/8 Ohms
5 -100 Watts
90 dB
50 - 20 kHz
200 mm kevlar
PI-C8
25 mm textile
332 x 232 x 90
12.2 x 8.8 x 3.5
4/6/8 Ohms
5 -80 Watts
90 dB
50 - 20 kHz
170 mm kevlar
PI-W6
25 mm textile
444 x 284 x 110
17.5 x 11.2 x 4.3
4/6/8 Ohms
5 -100 Watts
90 dB
40 - 20 kHz
200 mm kevlar
50 mm Dome
PI-W8
25 mm textile
Tone Controls HF ±3dB
LF ± 3dB HF ±3dB HF ±3dB
LF ± 3dB HF ±3dB
LF ± 3dB
HF ±3dB
MF ± 3dB
LF ± 3dB
Securing Method Clips Clips Clips Clamp Bar Clamp Bar
Wharfedale speakers are compatible
with 4-8 Ohm amplifiers

Positioning
Forstereoandhomecinemainstallationstheloudspeakersshouldbesymmetricalto
themainlisteningareaandideallybesited2-4metresapart.
Wall mounting speakers should be installed no more than 5ft (1.5 metres) above the
floor. Rear surround speakers should ideally be on the side walls slightly behind the
listening position. If this position is not available, the rear wall can be used.
Alternatively,ceilingspeakersmaybeconsidered.
Speakers should be placed at least 400mm (1.4 ft) from the side walls to minimise
colouration.ThetweetersonWharfedalePacificinstalledspeakerscanberotatedfor
preciselocalisation ofhighfrequencies.Theillustrationsshow placementoptionsfor
homecinema withtheappropriatetweeteradjustments.Forcombinationsofwalland
ceilingspeakers,consultthedrawingsbelowandonpage8.
The PI-C6ST model is a special case - refer to pages 8 & 9.
REAR L
REAR R
RIGHT
LEFT
CENTRE
2 - 4 metres
RIGHT
LEFT
CENTRE
REAR L
REAR R
2 - 4 metres
CENTRE
3
Dimensions and Cutouts PI-C6, PI-C6ST, PI-C8
105.00
100.00
250.00
Cutout Dimension 205.00 mm (8.07”)circular
PI-C6
115.00
110.00
250.00
Cutout Dimension 205.00 mm (8.07”) circular
PI-C6ST
120.00
115.00
288.00
Cutout Dimension 245.00 mm (9.8”) circular
PI-C8
10
CEILING MOUNTING
PI-C6, PI-C8
WALL MOUNTING
PI-W6, PI-W8
HOME CINEMA INSTALLATION USING WALLAND CEILING UNITS

Mounting the Loudspeakers
WallMounting:PI-W6andPI-W8
PI W-6 and PI W-8 use a latching bar for mounting
tothe wall. Removethe grille. Connectthe speaker
to the cable. Support the speaker with one hand
and carefully insert the assembly into the cavity at
anangleasshown.Lineupthespeakersquarewith
the mounting hole. Tighten the screws on the
latching bar until the speaker is in place and firmly
trapped against the wall board. During tightening,
centralise the unit in the cutout. After adjusting the
treble and bass contours (Page 7), the grilles can
befitted.
Note: The PI-W-8 is a three-way system with a soft
dome midrange unit and a dome tweeter mounted
inanisolatingpod.Thispodcanbe rotatedthrough
90°, thus enabling the loudspeaker to be mounted
ineitherportraitorlandscapemode.
TomountthePI-W8in landscapemode:
Removethefourscrews from thepodcoverontherear
of the PI-W8 and lift off the cover. The pod has two
centralaxle stubs. Remove the clamps on these stubs.
The whole pod can now be rotated 90°. Replace the
axlestubsandcover,andinstalltheunit.
InlandscapemodethePI-W8sshouldbepositionedas
‘mirror pairs’ with the pods on the inside so that the
tweeterscanbeswivelledforoptimumdispersion.
LANDSCAPE
PORTRAIT
(NORMAL
POSITION) 90°
°
0
9
5
PI-W8:AdjustingtheDispersion
The PI-W8 has a MF/HF assembly which can be rotated through 90º so that the
speaker can be operated in portrait or landscape mode. Additionally the tweeter is
mountedinitsownseparatepodsothatitmaybeangledforoptimumdispersion.
Whenoperatedinlandscapemode,thetweetersshouldfaceinward asshown.
PI-C6ST
The PI-C6ST enables a full stereo
connection within a looped multiple
unit installation. It features two
tweeters and a dual coil bass unit for
stereo playback via one ceiling mount
speaker. The speaker is designed for
use in restricted spaces. where true
stereo is not a priority, such as
hallways,bathrooms,elevators,etc.
Location
in many cases loudspeaker positions
are dictated by architectural
considerations.Where feasiblethePI-
C6ST should be mounted in a central
position in hallways: in bathrooms or
workplaces, it should be mounted away from the focus of activity. Mounting the PI-
C6STdirectlyaboveaworkstationorrestpositionisnotrecommended.
Thetweeterscanberotatedtoenhancethestereoimage.Theyarehousedinpodson
acentral diffuser.Thiscentralplateshouldrun alongthemainaxisofthe listeningarea
andthetweeterpodsangleddown,facingtoleftandrightformaximumdispersion.
8

CeilingMounting:PI-C6,PI-C6SandPI-C8
Check the ceiling carefully. As all the weight
acts directly downward ensure that the ceiling
panelandstructurewillsupportthespeaker.
Suspended Ceilings: If the grids are 600 x
600 mm (2’X2’) we suggest you strengthen the
panel. If the grids are 1200 x 600 mm (4’X2’)
the panel may be too weak, especially for the
PI-C8. It may be advisable to suspend the
assembly from the grids and not rely on the
panel alone (see drawing).Alternatively, use a
safety wire tethered securely to the speaker
frameandattachedtoanearbyanchorpointon
theceilinggrid.
Remove the grille. Make sure the speaker
mounting lugs are within the circumference of
the cutout, support the speaker with one hand
and push it through the hole. With the free
hand, insert a screwdriver into each mounting
screw and rotate the lug outwards. Tighten
each lug in turn until the speaker is securely
trapped to the ceiling. Keep the speaker
centralisedintheholeduringmounting.
Whencutting into cavities during installation,itis essential to ensurethat existing fire
barriers are not breached, and that the installation does not result in a new fire
hazard. If you suspect that either has occurred or is likely to occur, consult a
competentsurveyororyourlocalBuildingControlAuthorityforadvice.
Incaseswherealoudspeakermaybemountedclosetoaresonantstructure,suchas
a ventilating duct or plastic drainpipe, it may be a good idea to place some sound
absorbing material around the structure to damp down these resonances. Similarly,
ina ceiling cavity thatmay be resonant, apador sheet of fibreglassmay be tacked in
place loosely around the speaker - taking care to keep it clear of the components of
thespeaker. If spacepermitsa fibreglass curtainmaybehungtoadvantagebehind a
wall-mountingspeaker.
It is essential that any insulating or sound absorbing material is non-flammable and
compliantinfulltoallbuildingandelectricalstandardsinforceinyourlocality.
Note: The tweeter on the PI-C8 is mounted off-axis. When these speakers are used
inastereoor home cinema installation,thetweetersshouldface inwards sothatthey
canbeadjustedforoptimumeffectiveness.
FireBarriersandHazards
DampingMaterials
TrebleandBassAdjustments
PI-C6 and PI-C8: These speakers have separate three way switches on the front of
theunitthatcanbeusedtoadjustthetreble(HF)andbass(LF)level+3dB,0,-3dB.
ThePI-C6STisdescribedonthefollowingpage.
PI-W6: The PI-W6 features HF adjustment by +3dB, 0, -3dB on a front mounted
switch. Bass adjustment is by means of a set of tabs marked +3dB, 0, -3dB. As
supplied the unit is in the 0dB position and a red cable with a push on spade is
connected to the 0dB tag. To adjust the bass response up or down, lift off this spade
andreplaceitontherequiredtag.
PI-W8: The PI-W8 has three front mounted switches for separately adjusting the HF,
MidrangeandBasslevelby+3dB,0,-3dB.
Default factory setting is 0db in all cases. Boost and cut should only be finalised after
listeningtestsinsituandafterthetweeterpodsareadjustedforoptimumdispersion.
Altering the bass changes the impedance of the loudspeaker. When set to 0dB, the
impedanceis6Ω; atthe+3dBsettingitis4Ω,andwhensetto-3dBitis8Ω.
AdjustingtheTrebleDispersion
The PI-C6, PI-C6ST and PI-C8
ceiling speakers and the PI-W6
wall loudspeakers feature pod-
mounted ball tweeters. When
adjusting the pod, take care not to
damagethetweeterdome.
The pod is capable of a virtual 360º
circular rotation and a virtual 180º
axialadjustmentsoawidevariation
indispersionisachievable.
The PI-W8 has a rotatable mid/tweeter assembly. This is described on Pgs 5 & 8.
The pods should be adjusted so that the HF dispersion is focused on the listening
area. Where the speakers are used as surrounds the focus should be slightly
behind the listening position for good diffusion of rear effects. If an architectural
speaker is used as a home cinema centre channel, keep the focus tight on the
listening seat. The diagrams on Pgs 2 & 8 provide an idea of dipersion patterns.
InstallingGrilles
This is the final stage of assembly. Always make sure that the backing gauze is in
placebeforeyouinstallgrillesandinsertthembyapplyinglighthandpressurearound
theperimeter.DONOTapply pressure inthemiddleofthegrille or youmaydentit.PI
SeriesGrillesarenotdesignedforfrequentremovalandreplacement.
Ceiling grilles may have to be lightly worked by hand to ensure a tight fit. We
recommendthatyouapplyaverysmallamountofsiliconesealantaroundtheoutside
ofthegrilleperimetertokeepittotallysecure.
SUSPENDED
CEILING
BRIDGE
67

Installation
Refer to Pages 10 & 11 for dimensions, mounting depths and cutouts etc.
New Build: Walland ceiling cavities should be sufficientlydeeptoaccommodatethe
loudspeakers. The area around the speakers should be strengthened using extra
screwsandadditional studs(orstretchersbetweenceiling joists)tofirmlysupport the
speakers. Where possible a denser grade of wall/ceiling board may be advisable.
Cables should be pre-run to the speaker locations and areas around the speaker
cavitiesshouldbefreefromelectricalwiring,plumbing,etc.
Existing Build: Having decided the location, establish that there is
sufficient depth in the wall or ceiling cavity to accept the speaker. The
backoftheunitshould not touch therearwall.Ensurethatyoucanrun
speaker cables to the location and that the speaker cavity is clear of
electrical wiring, plumbing, etc. Cut a small hole in the wall or ceiling
board at the centre of the proposed location. The hole should slope
inwards to enable easy repair if the location is unsuitable. Insert a
probe until it touches the rear wall, mark the point at which the probe
meets the front wall and verify the depth. To check for obstructions,
insert a bent piece of stiff wire through the hole and rotate it slowly at
differentdepths.Thespeakerisnowreadyformounting.
Cutting the mounting hole
Cutthecorrectsizedholeusingthe templateprovided.Do not cut the hole oversize or
youwillimpairthefixing.Theframeisdesigned tospreadoverminorimperfectionsbut
sculptured wall or ceiling surfaces should be smoothed in the area behind the frame,
or the seal will be faulty and impair the sound. Alternatively, consider the use of
draughtsealingtapeplacedasagasketbehindthespeakermountingflange.
Painting
Make sure the grilles are removed. Place the provided paint mask into the grille
aperture. Paint the frame ensuring the paint does not seep into the aperture. When
paintinggrilles,removethebackinggauzeandkeeptheholesinthegrillefreeofpaint
-thepaintmayneedtobethinned.Replacethegauzewhenthepaintisdry.
Connection
The table showsAWG and metric sizes.1.5 mm diameter
cablemay be usedfor runs below 7 metres, 2 mm for runs
upto10metresand2.5mmshouldbeusedforlongruns.
PI series speakers use spring terminals. The Positive, +,
terminal is coded RED, the Negative, Minus, – terminal is
codedBLACK.Stripthe ends of the cable back 25mm and
barethetop 7mm.Depressaterminal andinsertthebared
end. Release the terminal and the wire will be secured.
Repeat for the other terminal. Use any colour coding on
the cable as a guide to identification. Ensure there are no
loosestrandsofwirethatmayshortacrosstheterminals.
BLACK RED
AWG mm /km
10 2.5 3.3
12 2.0 5.3
14 1.5 8.3
16 1.3 13.2
4
Mountingisthesameas forthePI-C6andPI-C8.
Connection
There ae two terminal sets. The top set
connects to the Left Channel of the amplifier,
thebottomsetconnectstotheRightChannel.
TrebleAdjustment
Phase
In a multi-speaker or Home Cinema environment it is essential that all the speakers
are wired in phase. Because the wiring is inaccessible in installed products, phase is
sometimes difficult to determine. An easy way is to place an AA battery across the
cables going to the loudspeaker. If the bass cone moves out the + terminal of the
battery is connected to the + terminal of the speaker. If the bass cone moves in the +
ofthebatteryisconnectedtothe-terminalofthespeaker.
Treble adjustment is by means of two sets of
tabs marked +3dB, 0, -3dB. (one for each
channel) As supplied the unit is in the 0dB
position and a cable with a push on spade is
connected to the 0dB tag. To adjust the treble
response up or down, lift off this spade and
replaceitontherequiredtag.
Boost and cut should only be employed after
listening tests in situ after the treble units have
beenadjustedforoptimumdispersion.
The grille should be fitted only when all
adjustmentshavebeencompleted.
Warranty
Your PI loudspeakers are typically warranted for 12 months from date of purchase,
thoughthewarranty periodandconditionsare subjecttoregionalvariations andlocal
terms of sale. During this period faulty equipment will be repaired or replaced free of
charge to the original purchaser. This warranty excludes carriage charges to the
dealer or service centre, details of which are on the rear page of this manual. Items
returned for warranty service which are not faulty or have been damaged by misuse
orneglectarenotcoveredbythewarrantyandarechargeable.
PI-C6ST
To LH Channel
To RH Channel
9

Introduction
TheWharfedalePIArchitecturalrangeconsistsof5modelsforin -ceilingandin- wall
applications. Sizes and fittings are compatible with US industry standards. The
speakers are suitable for use as normal stereo, AV front, centre and surround
speakers, and distributed household music systems.All the speakers are hi-fi sound
quality and feature drivers similar to the Wharfedale Pacific series of hi-fi
loudspeakers - with Kevlar cone bass drivers and low distortion 25 mm textile dome
neodymium magnet tweeters. The wall and ceiling models all have tweeters fitted in
swivel ball pods to enable image focus adjustment . All the speakers are fitted with
fineperforationaluminiumgrillesbackedwithantimoistureandrot-proofgauzes.
Themodelrangeconsistsof:
#PI-W6andPI-W8InWallModels
#PI-C6andPI-C8inCeilingModels
#PI-C6STSingle-chassisStereoInCeilingmodel
WarningsandDisclaimers
Your Wharfedale PI speaker system should be installed in accordance with the
regulationsandlawsappertainingtothebuildingandconstruction industry (including
safetyandmandatoryinsuranceregulations)ofthecountryofinstallation.
Although your loudspeaker is a low voltage device, all wiring to and from the unit
should be in accordance with the relevant standards laid down by the competent
authorityinthecountryandplaceofinstallation.
Inappropriate modifications to your home can cause damage to the structure and
fabricaswellaselectricalorplumbinginstallations.
For the above reasons, in wall or in ceiling speakers should be installed by licensed
sound contractors or technicians with the appropriate qualifications and experience.
Installers should also be in possession of adequate public liability insurance and
householdersareadvisedtoascertainthisbeforetheprojectcommences.
Wharfedale cannot be responsible for any damage, actual or collateral, arising from
installationsinvolvingtheWharfedalerangeofin-wallorin-ceilingloudspeakers.
Please read this manual in full before commencing the installation of your
WharfedalePIArchitecturalloudspeakers.
Unpacking
Thepackingshouldcontain:
#Theproductandthegrilleassembly
#Acutouttemplateandpaintmask
Unpack the speakers and examine them. Report any damage or shortages to the
supplier immediately. Replace the speakers in the protective packaging until the
actualmomentofinstallation,asexposedcomponentsareeasilydamaged.
2
284mm
Speaker Cutout
410mm x 245mm
16.15” x 9.65
444mm
Speaker Cutout
305mm x 200mm
12.0” x 7.87”
232mm
232mm
460.00
10.00
05.00
1
1
356.00
90.00
85.00
Dimensions and Cutouts PI-W6, PI-W8 PI-W6
PI-W8
PI-W8
PI-W6
11