Wiring and Connections
22 Delta Series Audio Controllers

Connecting Matrix In-Ceiling Speakers

Overview - Speaker Wire Technology (SWT)

Speaker Wire Technology (SWT) allows both data and audio signals to travel over the same four
conductor wire. This is the same four conductors that you would run (or is run) in your home wiring
installation for a standard speaker and volume control installation. This remarkable technology removes
the need for control wire since the control and audio signals are shared on the same wire. The reliability
and simplicity of this system has been proven for years in both existing homes as well as brand new
multi-room installations.
SWT simply replaces standard “rotary” or “slide” volume controls with Matrix Audio keypads and a
Controller like Delta, giving full control over the sources. Additionally, the versatility of SWT also
allows Matrix Audio products to be connected where the control wire has been run separately from the
speaker cable, so installations are easier than ever before.

Overview - Matrix Speakers

Matrix in-ceiling speakers provide exceptional acoustical performance using superior components and
crossover design. Matrix speaker enclosures incorporate a floating bridge, which houses a unique
pivoting tweeter assembly that creates directionality for the user.
The Delta system can be used with the Matrix Audio Active Speaker system. This speaker system is an
active design that connects directly to the Matrix Controller and has an IR receiver so there is no need for
a keypad in the zone. The remote control can handle all of the zone functions simply by pointing at the
speaker.
FIG. 15 shows the three main types of Matrix speakers (C Series, C-DT Series and EL Series):

Wiring Method A

In the configuration illustrated in FIG. 16, all four wires are run to the active speaker (shown Left) and
then the second speaker (shown Right) connects to the first with 2 wires (+ and -).
FIG. 15 Matrix In-Ceiling Speakers
EL Series
C Series C-DT Series