6
A fully operational 5.1 system consists of two main front loudspeakers, two rear effects speakers at the rear (usually wall
mounted) and a centre channel. The subwoofer provides the .1 part of the system.
THE SYSTEM
(See fig. 6)
Unlike other forms of encoded surround audio, 5.1 offers full bandwidth capability for the surround and centre channels,
with the ability to treat the subwoofer as a single discreet channel for special effects playback or, for music applications, as
a dedicated low frequency instrument channel. This places new demands on the surround and centre channel loudspeakers
in both the mixing environment and the playback environment.
The 5.1 format allows the mix engineer in the recording studio to assign audio information to one or more discreet channels
of playback; providing very vivid and exacting localisation for the apparent sound sources in the listening environment. To
reliably recreate that accurate localisation during playback, the selection and location of loudspeakers becomes the single
most critical issue next to the talent of the mix engineer in the studio.
DIMENSION HOME THEATRE 5.1 – GENERAL INFORMATION
The Dimension loudspeaker drive units contain very large magnets to ensure optimum performance, power handling, efficiency
and reliability. These are capable of generating a substantial magnetic field extending a considerable distance beyond the
sidewalls of the speaker enclosure. This field will cause picture distortion if the speakers are placed too close to the TV. It is
therefore recommended that the front (left and right) speakers are positioned at least 1 metre (39 inches) to each side of
the television screen. Rear projection and plasma televisions are not prone to interference from these magnetic effects.
SCREENING
The ultra wide dynamic range and power handling capability of Dimension loudspeakers will provide the ultimate home
cinema experience. The speakers should be positioned either side of the TV or projection screen placed in line with the screen
surface.
FRONT SPEAKERS
(See figs. 2 and 3)
The Dimension centre channel speakers are fully magnetically shielded and are designed for installation directly above or
below the TV. As the main effects speaker for the front soundstage, the critical factor in its performance is the placement.
In all cases the centre channel speaker should be positioned as near to the TV screen as possible. The viewing position when
seated determines the ideal mounting height, but in all cases this should be as close as possible to ear height. As with the
main speakers the front baffle panel should be as near as possible in line with the screen surface.
The Dimension TDC 1 centre channel can be wired in single wire or bi-wire mode. Please refer to the figures 2 and 3 for
connection guidance bearing in mind that connection should be made to the dedicated centre channel output on your A/V
processor amplifier.
CENTRE CHANNEL SPEAKER TDC1
The integrity of the special effects soundstage created by the source material will be compromised if the speakers are installed
on the sidewalls, for that reason they should always be placed behind the main viewing position.
The placement of floor standing speakers at the rear should mirror as near as possible the location of the front pair and
0.5 metres (20 inches) from the rear wall. Wall-mounted loudspeakers should be shelf or bracket mounted 1.5 to 4.5 metres
(5ft to 15ft) apart with a height mounting height range of 1.5 to 2 metres (5ft to 7ft).
REAR EFFECTS SPEAKERS
As the subwoofer only produces low frequency, therefore monaural information, it is difficult to detect its location by ear. It
could as a result be situated anywhere in the room, but optimum performance will be gained by locating the subwoofer
between the main stereo pair of speakers. Bass output will increase when placed next to a wall or in a corner so use the
subwoofer volume control to balance the output with the rest of the system.
Please refer to the manual supplied with the subwoofer for advice on installation and set-up.
SUBWOOFER TD-SUB
T R A N S L AT E D . P D F D O W N L O A D S O F T H I S M A N U A L A R E A V A I L A B L E O N O U R W E B S I T E AT
w w w. t a n n o y. c o m
Summary of Contents for Stereo amplifier Dimension
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