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Wharfedale Opus 2 Manual

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Delay and LFE Settings
Expanding the System
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.
Rear Delay: If the listening position is equidistant from the Front and Rear speakers, a low delay setting should be set.
The closer the listener is to the Rear speakers the higher should be the delay setting used,
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.
In domestic systems the LFE channel typically feeds into the subwoofer. Where no subwoofer is used, the LFE
signal is combined with Front Channel information. When you set the LFE level at your AV processor, use care as the
powerful low frequencies can overload domestic loudspeakers.
If you hear popping or thumping noises coming from the front loudspeakers or subwoofer, immediately turn the AV
Processor's volume level down and then back off the LFE level. This should cure the problem. If it does not, back off
the volume level at the subwoofer (if you are using one) until the problem disappears.
Please read the relevant sections of your AV amplifier manual and familiarise yourself with the various issues. If you
are unsure, consult your dealer for help.
Dolby Labs, DTS and THX offer 6.1 and 7.1 formats which extend the 5.1 principle by adding one or two extra rear
effects channels. 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 observations.
For most 6.1 and 7.1 formats, and especially Dolby ES the listening seat should not be too close to the rear wall.
Optimising the time delay so that information from all speakers arrives at the listening seat coherently is critical if the
benefits of these systems are to be fully realised. THX adjustments in particular need to be followed to the letter.
LFE:
Left Surround
Left Back
90º
110º
135º
150º
22º
30º
LFE
Centre
Right Back
Right Surround
Right Front
Left Front
Dolby Labs Recommended 7.1 Placement
(Single Back channel for 6.1 shown dotted)
Opus²
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Operating Your Subwoofer
Check that all connections to the subwoofer have been properly made and that the main volume control is at minimum. Plug the
supplied power cord into the mains socket on the rear panel.
Plug in the mains plug and switch the power on. Now switch the subwoofer on with the rest of your system.
The subwoofer on/off switch has a rocker action; press the upper part to switch the equipment on and the lower part to switch it
off. When switched on the light above the power switch will glow and the subwoofer will be operational.
All control functions are carried out using the remote handset. The handset must be pointed at the subwoofer and be in line of
sight for it to operate.
Operating the Standby key brings the subwoofer in and out of Standby.
The preset light will not light
if no preset has been set up
or if a preset is over-ridden.
In Standby, the Volume,
Filter, Preset and Phase
indicators are extinguished.
Rear panel lights stay on.
Press the Volume
+ key to increase the
volume level. Press the
Volume - key to decrease
the subwoofer volume.
The volume range on the front panel display varies from (minimum) to (maximum).
Pressing the appropriate filter key will select the frequency at which the subwoofer
rolls off. The filter has steps at Off and 35Hz-85Hz in 10 Hz increments. When ‘OFF’ is selected the
subwoofer operates over its full designed range. Pressing other keys lowers the maximum operating
frequency. The Low Pass Filter value should be chosen having regard to the nature of the Front speakers
and programme material. Follow the Setup Notes on Page 11 and the instruction manual of your AV
processor (if used) for more guidance.
This key toggles the subwoofer between 0º and 180º phase shift.
Four different settings of level, frequency and phase can be stored. Pressing and holding any of
the preset keys on the remote for 3 seconds will cause the current settings to be stored in that preset.
The display will show the preset number then flash the preset number once to show it has stored the
preset. To change from one preset to another: Press a preset key on the remote for less than 3 seconds
to recall the settings of that preset. The display will show the preset number.
If you select a preset and then alter any aspect of the setup, the preset light will extinguish (as the setup
no longer matches the preset).
When brought out of standby for the first time, the unit will display the factory presets. Thereafter, bringing the unit out of
standby will revert it to the operational state last used. If you switch the power on and off at the rear panel while the unit is in
standby, the unit will power up to a normal operating state (i.e. not in standby). To enter standby, again press the Standby key.
When you bring the unit out of Standby or perform any operation using the handset the
front panel lights will indicate the current setup and volume. After 10 seconds the lights will extinguish and the panel will go dark.
and the purpose is to minimise any distraction from the programme in play. The light above the mains power
switch on the rear panel will always remain illuminated whenever the subwoofer is switched on at the mains.
Operation
Standby:
Volume:
Low Pass Filters:
Phase:
Presets:
Note:
A Note on the Front Panel indicators.
This is intentional
00 99
OFF
LOW PASSFILTER SELECT
85Hz75Hz65Hz55Hz
45Hz
35Hz
MEMORY
POWER
PHA SE
0
180
1 2
3
4
VOLUME
Opus²
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