Wharfedale Diamond 156 User Manual

Diamond 100 Series  
Diamond121  
Diamond122  
Diamond155  
Diamond156  
Diamond157  
Diamond159  
Diamond101C  
Diamond102C  
Preparing the Diamond 100 Loudspeakers  
Stands and Brackets  
The bookshelf loudspeakers are intended primarily for stand mounting, though they can be mounted on wall brackets or even on sturdy  
shelves. The quality of loudspeaker stands greatly influences the performance of your loudspeakers, please do not use flimsy products.  
Centre Channel Loudspeakers  
Each centre channel loudspeaker is supplied with two sets of mounting feet. By using combination of large and small feet the loudspeaker may  
be angled to point directly at the listening position. This will be found useful when the centre speaker is positioned under the TV screen.  
Cables and Connectors  
Choosing Loudspeaker Cable  
Specialist audio cable usually offers beꢀer performance than general purpose 'bell' or 'zip' wire.  
Choose a cable of suitable diameter – cable that is too thin will limit the dynamics of the sound and may impair the bass response. Audio cable  
is polarised, with two cores of different colours, or oſten a raised rib or coloured tracer in the case of twin cable. Before you purchase your cable,  
give careful thought to the positioning of your loudspeakers.  
This is especially the case if you are bi-wiring your loudspeakers.  
Cable lengths to loudspeaker pairs should be the same for leſt and right channels in order to equalise the signal  
transmission. Allow some slack in your speaker cables so you can alter their position to best advantage.  
Preparing Loudspeaker Cable  
Split the twin cores to a depth of about 40mm. Carefully strip the insulation from each end, leaving about 10mm of  
bare wire. If the cable is stranded, lightly twist to gather any loose strands.  
Connecting Screw Terminals  
All loudspeakers use screw terminals.  
Unscrew the terminal. Insert the bare end of the cable into the hole in the base of the terminal. Tighten securely.  
When connecting terminals make sure you leave no strands of bare wire that can short across to adjacent terminals.  
As an alternative to bare wire you can use specialist spade connectors. Your Wharfedale dealer will be pleased to  
advise you on this issue.  
Crossover Networks  
Bi-Wireable Networks  
Most speakers in the Diamond 100 series use a special bi-wireable crossover panel with four  
terminal binding posts. Please follow the drawing carefully to see the correct orientation of the  
loudspeaker terminals. The upper terminals connect to the treble unit, the lower pair to the bass  
unit. As supplied, the treble terminal pair is connected to the bass terminal pair via removable  
metal straps. These should be leſt in place for standard installations.  
Why Bi-Wire?  
Using separate cables for treble and bass units in a bi-wiring configuration reduces  
intermodulation effects and improves headroom and clarity. To bi-wire, you will need to install  
two lengths of twin core cable between the amplifier and each loudspeaker.  
Positioning the Front Loudspeakers  
The 155, 156, 157 and 159 models are designed to be floor standing. We suggest that they are positioned at least 200mm from the rear walls and  
700mm from the side walls, facing slightly inwards. The 121 and 122 models should be stand or wall mounted though they may be placed on a  
rigid shelf. The bass extension will improve if the small speakers are operated closer to the rear wall.  
If the loudspeakers are placed too close to the walls the bass will increase but may be boomy and indistinct. If the loudspeakers are placed away  
from the walls, the inward angle may be increased by up to 40%, although this may restrict the width of the optimum listening position.  
A useful rule of thumb is that the listener should be as for from the loudspeakers as they are from each other. The speakers should ideally be  
positioned so that the treble units are roughly at ear level to s seated listener. As personal taste plays a large role, experiment with different  
configurations and play a wide range of programmes before finalising the position of your speakers.  
121 - 122  
155 - 159  
Positioning the Centre Loudspeaker  
The centre channel loudspeaker should be positioned centrally between the loudspeakers, close to the television and mounted above or below  
the screen.  
The loudspeaker should be located on a stable flat surface to avoid any cabinet movement at high  
sound levels. If you mount the unit above the television, move it forward so that the front grille sits  
slightly in front of the screen and the top of the cabinet.  
A custom stand is available for the model which allows the loudspeaker to be positioned under a  
wall mounted monitor and has an adjustable vertical tilt for optimal dispersion.  
Connecting the Front Loudspeakers  
Standard Connection  
Choose a suitable length of twin core speaker cable for each  
channel, and prepare the ends. Unscrew each terminal a few  
turns.  
Connect the red, positive (+) terminal of the Leſt loudspeaker  
to the corresponding red, positive (+) amplifier terminal.  
Connect the black, negative (-) terminals similarly. Tighten  
the terminals securely. Repeat this procedure for the Right  
channel.  
RIGHT SPEAKER  
LEFT SPEAKER  
LEFT SPEAKER  
LEFT SPEAKER  
BI-WIRED CONNECTION  
Bi-Wiring  
Unscrew each terminal a few turns and remove the metal  
straps. Connect the cables between the amplifier and the  
loudspeakers as indicated above and re-tighten all the  
terminals securely.  
RIGHT SPEAKER  
Bi-Amping  
By connecting each loudspeaker drive unit to its own  
dedicated amplifier the advantages of bi-wiring can be  
extended.  
IF you own two indentical stereo power amplifiers, your  
speakers may be bi-amped. For further details please consult  
your dealer.  
RIGHT SPEAKER  
Connecting Centre Loudspeaker  
The Centre channel speaker may be connected as shown, or bi-wired.  
Setting Up a Home Theatre System  
Placement  
Front and Effects Channels: The front loudspeakers are placed on either side of the television screen, 2 to 3 metres apart. The speakers should  
be angled slightly so they car aimed towards the listeners.  
We recommend placing the rear effects speakers in a high position, behind the listeners head. If the rear or side walls are a long way from the  
listening seat, consider stand mounting the loudspeakers. If the centre loudspeaker is very high or low, angle it towards the listeners ear level.  
The front faces of the centre and surround loudspeakers should also be in line as far as possible.  
Subwoofer: As the ear is unable to detect the direction from which deep bass originates, you have freedom to position the unit. Varying the  
distance from the wall alters the bass. Placing the subwoofer across a corner boosts the bass but may impair clarity. The performance of a home  
theatre system can be enhanced by using two subwoofers.  
6.1 and 7.1 System Placement  
LFE  
Dolby Labs, DTS and THX offer 6.1 and 7.1 format. Although  
the precise configuration of these systems will depend on the  
capabilities of your processor and you should be guided by those  
instructions, we would make some observation.  
For 6.1 and 7.1 formats the listening seat should not be too close to  
the rear wall.  
Optimising the time delay so that information from all speakers  
arrives the listening seat coherently is critical of the benefits of these  
systems are to be fully realised.  
Dolby Labs Recommended Placement for Multichannel Home  
Theater Systems  
Setting Loudspeaker Sizes and Levels  
If you are not using a subwoofer: Set the Front speakers to ‘Large’. Set the ‘Subwoofer’ option on the processor to ‘Off’ or ‘No’. The Front  
channels will now receive all the system bass.  
If you are using a subwoofer: When set to ‘Small’ all the system bass will go into the subwoofer. If you choose ‘Large’ the Front channel bass will  
be reproduced from the Front speakers. Follow the instructions on this page for suitable size and crossover seꢀings.  
Once the loudspeaker seꢀings have been finalised, put the A/V amplifier into its ‘Test’ mode (see instructions supplied with your processor).  
Adjust the level of each channel until all channels are reproduced at equal loudness.  
On some programme material the surround channel may seem lower than the front. Do not readjust this level. You may, however, need to adjust  
the subwoofer output level. Avoid seꢀing too high a level or you will swamp the sound with bass. This can be tiring to listen to, and may limit  
the subwoofers ability to respond to large bass transients. You should also set a sensible level going into the subwoofer from the A/V processor.  
The subwoofer volume control should be between 12 o’clock and 3 o’clock.  
Delay and LFE Settings  
Many A/V processor feature delay seꢀings. The purpose of delay is to enable surround and dialogue information to arrive at the listeners ears at  
the same time as the front channels, even when the listening seat is in a non-ideal position. On some processors, this can be achieved by seꢀing  
the distance from the listening position to each speaker, but other system allow only a time delay seꢀing.  
Rear Delay: If the listening position is equidistant from the front and rear speakers, set a low delay seꢀing. The closer the listener is to the rear  
speakers this higher the delay seꢀing used should be.  
Centre Delay: If the centre speaker is level with (or slightly behind) the front speakers, set the delay to zero. If the centre speaker is forward of  
the front speakers, increase the delay.  
LFE: In the cinema the low frequency effects channel is an extra bass channel with its own subwoofer. In domestic systems the LFE channel  
typically feeds into the subwoofer. Where no subwoofer is used, the LFE signal is combined with the front channels and sent to the front  
speakers. When you set the LFE level at your A/V processor, use care as powerful low frequencies can overload domestic loudspeakers. If you  
hear popping or thumping noises coming from the front loudspeakers or subwoofer, immediately turn the A/V processors volume level down  
and then lower the LFE level. This should cure the problem. If it does not, lower the volume level at the subwoofer (if you are using one) until  
the problem disappears.  
Phase: Please read the relevant sections of your A/V amplifier manual and familiarise yourself with the various issues. If you are unsure, consult  
your dealer for help. A home theatre system should have a precise front stage, a diffuse rear stage and good localization of dialogue. If the  
colours on the loudspeaker terminals do not correspond with those on the amplifier, the sound will appear poorly focused or ‘out of phase’. For  
this reason it is essential that the speakers are connected according to the wiring diagrams in this manual.  
Connecting loudspeakers correctly (in phase) is essential whether the system is stereo or multichannel. This is especially important if you are bi-  
wiring – if only one element in a bi-wired system is incorrectly connected (out of phase), the effects can be very noticeable yet hard to pinpoint.  
Troubleshooting  
Before investigating a problem, always switch off the system at mains.  
If your system is not working properly please work through this checklist before returning the unit to your dealer.  
Symptom  
Possible Cause  
No Sound  
System not switched on; Speaker cables shorting terminals out; Wrong source selected  
Subwoofer not switched on  
Sound lacks bass content  
Lack of bass reproduction  
Subwoofer phase incorrect; Subwoofer crossover control too low  
Subwoofer set to high; LFE level set too high; Subwoofer incorrectly wired  
System level set too high; Bass control set too high; Subwoofer too close to room corners  
System level set too high; Objects too close to subwoofer  
System level set too high; Subwoofer level set too high; LFE level set too high  
Excessive bass distortion at low volumes  
Excessive or distorted bass at high levels  
Distorted / raꢀling sound at high levels  
Popping or thumping from the subwoofer  
Subwoofer too close to TV. (Switch off system and TV, move units away, wait for 15 minutes,  
Television picture colour is distorted  
switch on.)  
Looking After Your Loudspeaker  
·
Your loudspeakers use special hardwearing sealed finish. They should not be waxed or treated with spray polishes which will smear and  
dim the finish. Occasionally polish them with a dry or barely moist cloth to remove dust and finger marks, etc.  
·
If you play the speakers with the grilles off exercise great care. NEVER operate speakers with the grilles off if there are children or pets in  
the house.  
·
·
·
·
Occasionally, remove the loudspeaker grilles and brush them gently with a soſt brush before replacing them carefully.  
NEVER use a vacuum cleaner to clean loudspeaker grilles.  
NEVER stand objects on your loudspeakers. In particular do not stand flowers etc. on them – they are not jardinières!  
Avoid geꢀing any liquid behind the grille. If you spill liquid on your loudspeakers, take them to your dealer for aꢀention before using them  
again.  
·
·
DO NOT open the speakers, there are no user serviceable parts inside.  
NEVER touch the drive units either with an object or your hands.  
Quality Assurance  
Your loudspeakers have been constructed to the highest standards. From top grade furniture construction and finish to carefully designed and  
selected acoustic components, Wharfedale speakers are built to provide a lifetime of sonic pleasure. We hope you will derive many years of  
good service from our products.  
Servicing  
In the unlikely event that your unit develops a fault you should return it to your Wharfedale dealer using the original packing to ensure safe  
shipping.  
The terms of your guarantee may vary in different countries. However, in all cases the guarantee excludes:  
Liability for damage or loss occurring in transit to or from the purchaser.  
All damage caused through accident, misuse, wear and tear, neglect, incorrect installation, adjustment or repair by unauthorised personnel.  
Wharfedale will not be liable for any consequential damage, loss or injury, arising from or in conjunction with this equipment.  
Service Centre Address  
For technical support, servicing or product queries and information please contact either your local retailer or the office below.  
UK  
IAG Service Dept.  
Unit4  
St Margarets Way  
Stukeley Meadows Industrial Estate  
Cambs  
PE29 6EB  
England  
Tel: +44 (0)1480 452561  
Fax: +44(0)1480 413403  
For information on other authorised service centres worldwide contact Wharfedale International, UK.  
A world wide distributors list is available on the Wharfedale website: www.wharfedale.co.uk  
Specifications  
Diamond ꢀꢁꢀ  
Diamond ꢀꢁꢁ  
Diamond ꢀꢄꢄ  
General Description  
Enclosure Type  
2-way Bookshelf Speaker  
Bass Reflex  
2-way Bookshelf Speaker  
Bass Reflex  
2.5-way Floorstanding Speaker  
Bass Reflex  
Transducer Complement  
Bass Driver  
Midrange Driver  
Treble Driver  
2-way  
2-way  
2.5-way  
130mm Woven Kevlar Cone  
-
25mm Soſt Dome  
No  
165mm Woven Kevlar Cone  
-
25mm Soſt Dome  
No  
165mm Woven Kevlar Cone  
165mm Woven Kevlar Cone  
25mm Soſt Dome  
No  
AV Shield  
Sensitivity (2.83V @ 1m)  
86dB  
87dB  
89dB  
Recommended Amplifier Power 25-100W  
25-120W  
96dB  
25-150W  
102dB  
Peak SPL  
95dB  
Nominal Impedance  
Minimum Impedance  
Frequency Response (+/-3dB)  
Bass Extension (-6dB)  
Crossover Frequency  
Cabinet Volume (in litres)  
Dimensions (H x W x D)(mm)  
Carton Size (mm)  
8Ω Compatible  
4.1Ω  
50Hz ~ 20kHz  
45Hz  
2kHz  
7L  
315 x 174 x (227+28)  
495 x 320 x 410  
5.3kg/pcs  
12.5kg/ctn  
-
8Ω Compatible  
4.2Ω  
45Hz ~ 20kHz  
40Hz  
2.3kHz  
10.3L  
354 x 196 x (267+28)  
540 x 360 x 450  
7.4kg/pcs  
16.6kg/ctn  
-
8Ω Compatible  
3.7Ω  
40Hz ~ 20kHz  
37Hz  
2.2kHz  
35L  
(938+25) x 196 x (306+28)  
420 x 310 x 1060  
19.3kg/pcs  
22.5kg/ctn  
Spikes/Spike Seats  
Net Weight  
Gross Weight  
Standard Accessories  
Diamond ꢀꢄꢅ  
Diamond ꢀꢄꢆ  
Diamond ꢀꢄ9  
General Description  
Enclosure Type  
3-way Floorstanding Speaker  
Bass Reflex  
3-way Floorstanding Speaker  
Bass Reflex  
3-way Floorstanding Speaker  
Bass Reflex  
Transducer Complement  
Bass Driver  
3-way  
3-way  
3-way  
2 x 165mm Woven Kevlar Cone 2 x 165mm Woven Kevlar Cone 2 x 200mm Woven Kevlar Cone  
Midrange Driver  
Treble Driver  
AV Shield  
130mm Woven Kevlar Cone  
25mm Soſt Dome  
No  
130mm Woven Kevlar Cone  
25mm Soſt Dome  
No  
130mm Woven Kevlar Cone  
25mm Soſt Dome  
No  
Sensitivity (2.83V @ 1m)  
89dB  
90dB  
89dB  
Recommended Amplifier Power 25-150W  
25-150W  
25-200W  
Peak SPL  
102dB  
102dB  
110dB  
Nominal Impedance  
Minimum Impedance  
Frequency Response (+/-3dB)  
Bass Extension (-6dB)  
Crossover Frequency  
Cabinet Volume (in litres)  
4Ω  
3.0Ω  
40Hz ~ 20kHz  
35Hz  
400Hz & 2.4kHz  
Mid Internal 8.8L  
Bass Internal 30L  
(950+25) x 204 x (320+28)  
435 x 320 x 1075  
20.4kg/pcs  
4Ω  
3.0Ω  
40Hz ~ 20kHz  
35Hz  
400Hz & 2.4kHz  
Mid Internal 10.6L  
Bass Internal 37.2L  
(998+25) x 204 x (366+28)  
480 x 320 x 1120  
24.4kg/pcs  
6Ω  
3.1Ω  
35Hz ~ 20kHz  
32Hz  
400Hz & 2.8kHz  
Mid Internal 8L  
Bass Internal 66.3L  
(1103+25) x 250 x (396+28)  
510 x 365 x 1225  
30.4kg/pcs  
Dimensions (H x W x D)(mm)  
Carton Size (mm)  
Net Weight  
Gross Weight  
23.5kg/ctn  
28kg/ctn  
34.5kg/ctn  
Standard Accessories  
Spike/Spike Seat  
Spikes/Spike Seats  
Spikes/Spike Seats  
Specifications  
Diamond ꢀ0ꢀC  
Diamond ꢀ0ꢁC  
General Description  
Enclosure Type  
2-way Centre Speaker  
Bass Reflex  
2-way Centre Speaker  
Bass Reflex  
Transducer Complement  
Bass Driver  
2-way  
2-way  
2 x 130mm Woven Kevlar Cone 2 x 165mm Woven Kevlar Cone  
Midrange Driver  
Treble Driver  
AV Shield  
-
-
25mm Soſt Dome  
Yes  
25mm Soſt Dome  
Yes  
Sensitivity (2.83V @ 1m)  
89dB  
90dB  
Recommended Amplifier Power 25-150W  
25-200W  
96dB  
Peak SPL  
95dB  
Nominal Impedance  
Minimum Impedance  
Frequency Response (+/-3dB)  
Bass Extension (-6dB)  
Crossover Frequency  
Cabinet Volume (in litres)  
Dimensions (H x W x D)(mm)  
Carton Size (mm)  
Net Weight  
Gross Weight  
Standard Accessories  
Optional Accessories  
8Ω Compatible  
4Ω  
60Hz ~ 20kHz  
65Hz  
2.8kHz  
11.8L  
174 x 470 x (236+28)  
560 x 330 x 280  
8.2kg/pcs  
9.6kg/ctn  
-
8Ω Compatible  
3.8Ω  
55Hz ~ 20kHz  
55Hz  
2.4kHz  
17.6L  
196 x 530 x (276+28)  
620 x 370 x 300  
10.8kg/pcs  
12.5kg/ctn  
-
Centre Base  
Centre Base  
Note: The right is reserved to alter performance, specification and appearance as required.  
8
9
IAG House, Sovereign Court, Ermine Business Park, Huntingdon, Cambs, PE29 6XU, UK  
Tel: +44(0)1480 447700 Fax: +44(0)1480 431767 http://www.wharfedale.co uk  
.
IAG reserves the right to alter the design and specifications without notice. All rights reserved IAG Group Ltd.  
Wharfedale is a member of the International Audio Group. CODE: WH12-MNL0011a  

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