Wharfedale Pro Diamond 121 User Manual Download

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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

Many A/V processor feature delay settings. The purpose of delay is to enable surround and dialogue information to arrive at the listener’s 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 setting
the distance from the listening position to each speaker, but other system allow only a time delay setting.

Rear Delay: If the listening position is equidistant from the front and rear speakers, set a low delay setting. The closer the listener is to the rear
speakers this higher the delay setting used should be.

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 processor’s 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.

Delay and LFE Settings

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 settings.

Once the loudspeaker settings 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 setting too high a level or you will swamp the sound with bass. This can be tiring to listen to, and may limit

the subwoofer’s 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.

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.

Troubleshooting

Symptom

Possible Cause

No Sound

System not switched on; Speaker cables shorting terminals out; Wrong source selected

Sound lacks bass content

Subwoofer not switched on

Lack of bass reproduction

Subwoofer phase incorrect; Subwoofer crossover control too low

Excessive bass distortion at low volumes