Manual Wharfedale opus2 2 (page 14 of 20) (English)

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Positioning AV Speakers

Front Loudspeakers:

Rear Surround channels:

Centre Channel:

The front loudspeakers are

placed on either side of the TV monitor, 2 to 3 metres

apart and somewhat above the listener. The speakers

should be angled slightly so they are aimed towards

the listeners.

The reproduced sound

should be as room filling as possible. We recommend

placing the speakers in a high position, behind the

listeners head. If the rear wall is more than 1 metre

behind the listening seat, an alternative position is on

the side walls. If the walls are a long way from the

listening seat, consider stand mounting the

loudspeakers.

Most of the dialogue comes from the

centre loudspeaker. Speech should appear to originate

from the actors mouths. Operating height is

important. Ideally the front and centre channel

speakers should be at the same height. The front of

the cabinet should be level with the TV screen.

SUB

The Opus² Tri-Centre

The Opus² Tri-Surround

loudspeaker may be freestanding or mounted

on a stout shelf.

is designed for wall mounting. The unique

design of this loudspeaker enables its use either on the rear or the

side walls of the room. We suggest that you rear mount these

loudspeakers where possible.

The Opus²Av System

The Opus² Av System is a three speaker system. The

system comprises a pair of AvS Satellite loudspeakers

and a single AvC Centre channel loudspeaker. Both

loudspeakers are three-way units.

The loudspeakers are designed for wall mounting -

integral keyhole slots are provided and, for additional

safety, a security fixing kit is included with each

loudspeaker.

The Opus² AvC may be wall mounted on its integral

keyhole slots, or on a special mounting bracket. When

mounted on its bracket the speaker may be angled

vertically for optimum effect. The bracket mount is

shown in the illustrations.

The loudspeakers' small front to back profile makes

them ideal as partnering speakers for Plasma or LCD

screens.

The Opus² Av system may be used together with an

Opus² Subwoofer to add full 5.1 connectivity to a

conventional Stereo system - their 3-way design and

voicing making an ideal surround sound complement

to regular Opus² loudspeakers.

2 Channel System with Centre Channel Re-inforcement

SUB

5.1 System

Opus²

The 75 mm Soft Dome Midrange Unit

25 mm Soft Dome Tweeter

Crossover and Internal Wiring

A new studio monitor quality large dome mid-range drive unit is used over the crucial midband frequencies, 700 Hz – 4 kHz. A

key feature of this driver is exceptionally low distortion over its entire working range - typically less than 1% at a Sound Pressure

Level of 100 db at 1 metre. The driver is mounted in a

custom matched fascia plate which provides partial horn

loading, giving a broad angle of dispersion at its upper

crossover point. The fascia plate is die cast aluminium,

designed to place the units as close as possible for

optimum integration and to create a point source effect.

The dome is driven by a large 75 mm voice coil based on

a hard aluminium former to provide maximum rigidity

and to maintain a cool coil operating temperature by

maximising thermal radiation. The diaphragm supporting

ring is die cast aluminium to maintain perfect concen-

tricity of the moving parts during assembly. The dome is

pressure equalised by a closely coupled underside

perforated dome baffle and a rear chamber within an

extended die cast aluminium finned rear cover which

serves as a heat sink and breaks up internal cabinet

resonances. A powerful high flux shielded magnet

provides ample reserves of motor force to the dome.

The highest frequencies are handled by a soft dome driver. Extensive research at Wharfedale

has established that properly engineered soft domes are a better choice than metallic based

domes which add their own typical character to the treble response.

The new Opus² tweeter has been re-engineered with a specially fine gauge aluminium coil to

reduce the moving mass and extend response to beyond 45 kHz -far above audible frequencies.

Careful attention to detail has resulted in wide dispersion with very low distortion again typically

below 1% at an SPL of 100 db at 1 metre. The unit uses a fully shielded high flux neodymium

magnet, and produces a typical SPL of 93 dB at 1 metre at an input of one Watt. Die cast

aluminium structural parts are used throughout and a rear cover isolates the tweeter dome from

the pressure of other speaker components

All models feature printed circuit boards with large copper tracks to maximize signal transfer and component layouts designed to

eliminate inference from any residual stray magnetic fields. The printed circuit boards are mounted on vibration free mountings.

Most models have two printed circuit boards to separate the bass inductors from those coupling the midrange and tweeter units.

The bass inductor has a large magnetic field when operating which would

otherwise modulate the other inductors. All inductors feature perfect layer

winding and large gauges of wire are used to keep insertion loss to a

minimum. Capacitors in crossover networks pose special problems. The

Opus² range features high grade low-loss, low-ecr, polypropylene or reversible

electrolytic capacitors specially selected for their outstanding audio properties.

These capacitors are marked with the ‘Wharfedale super audio capacitor’

logo. The internal cables used are specially made and assembled in our

factory: 4 multiple strand oxygen-free copper wires are plaited into a single

cable for all connection runs within the speaker.

Anatomy of a Midrange Dome

The Opus² Drive Units-2

Opus²Opus²

My wharfedale flat TV 19 inch has no remote control monitor, please can you tell me the remote control code.

Submitted on 14-6-2021 at 20:45
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Wharfedale opus2 2 Manual

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