DALI PHANTOM
IW SUB S-100 & CI AMP-2500 DSP
APPLICATION NOTES
Introduction
These application notes describe a variety of system setup examples employing the DALI PHANTOM SUB S-100
subwoofer and the DALI PHANTOM AMP-2500 DSP amplifier in combination with other DALI Custom Install (CI)
and Hi-Fi products.
The PHANTOM SUB S-100 subwoofer and DALI PHANTOM AMP-2500 DSP amplifier are extremely versatile
and can be used in a large variety of situations, from modest in-wall stereo systems all the way up to ambitious
multichannel home theatre installations. The examples described reflect some specific configurations that
can potentially be modified to suit alternative scenarios or personal set up preferences. The following pages
are intended to provide helpful insight and guidance on the many applications of the PHANTOM SUB S-100
subwoofer and AMP-2500 DSP amplifier.
Background information
Channels and Speakers
A
2.0
system (conventional stereo) consists of one left
channel, one right channel.
A
2.1
system describes the addition of a subwoofer to
a steer system.
So,
2.1
,
5.1
,
7.1
, etc. refer to the number of channels
installed, and, in most cases, the number of speakers
and subwoofers required.
The leading digit (2, 5, 7, etc.). represent the number
of full bandwidth channels where the speakers are
arrayed in a horizontal plane, while the second digit .1
(or .2) represents the subwoofer channel(s).
In immersive systems such as Dolby Atmos or DTS-X
that incorporate height channels, a further digit
is added to specific the number of height channel
speakers. For example,
7.1.4
describes a system
comprising seven horizontal plane speakers, one
subwoofer and four height channel speakers.
Subwoofer Channels
The subwoofer channel provides either low frequency
support to the main left and right channels, or the
reproduction of the LFE (Low Frequency Effects)
channel when encoded multichannel encoded
material (Dolby Surround, Dolby Atmos, DTS, etc.) is
appropriately decoded.
Note:
A configuration that employs a subwoofer
simply to support the main left and right channels is
know as a ‘bass managed’ system.
Some home theatre systems enable the connection
of a second subwoofer. In these cases, if the two
subwoofers are playing separate subwoofer signals,
the configurations is referred to as
5.2
or
7.2
channel
systems.
Note:
It is possible to have multiple subwoofers
playing the same channel. In this case, the system
would still be referred to as a .1 subwoofer setup.
Height Channels
Multichannel immersive audio systems such as Dolby
Atmos or DTS-X employ height speakers located
above the listeners (or sometimes installed to radiate
upwards so that their output reflects off the ceiling).
These systems are represented by a further channel
digit;
5.1.X
, for example, where the X indicates the
number of height speakers.
5.1.4
,
7.1.2
and
7.1.4
are the
most commonly found configurations.