Specifications

8 SF-16M Matrix Amplier Installation and Operation Guide
Figure 1
DB-25 Audio Connections
SF-16M units may be linked together to create systems up to 32 inputs x 64 outputs (see p. 13 for hookup details). The
DB-25 ports streamline this type of expanstion, and also serve as a connection from Audio Authority matrix systems.
1. Source audio link between SF-16M units: When multiple SF-16M units are linked together, the DB-25 audio input
receives source audio from the DB-25 audio loop output of the previous SF-16M. The source audio originates from the
RCA audio inputs or the DB-25 audio input of the rst SF-16M chassis. (See gure 2 below).
2. Direct input from an Audio Authority audio matrix: For installations where the SF-16M is serving as an amplier
for Audio Authority audio matrix switchers such as the ADX-0808/ADX-1616 and the HLX 2278 audio output card (See
Illustration below). In this scenario, the SF-16M receives all audio content from the ADX or HLX and passes the audio
through to the amplied outputs. The HLX or ADX provides all of the matrix switching (See gure 3 below).
SF-16M CONNECTIONS - Audio Inputs
RCA Line Inputs
The SF-16M includes 16 RCA audio inputs that can be congured as mono, stereo or a
combination of both mono and stereo. Figure 1 shown below provides examples of all
congurations. NOTE: It is important that all physical input congurations are entered into the
SF-16M programming, using the PC conguration software or the front panel system menu.
LINE INPUTS
BUS
1 3 5 7 9 11 13 15
A B C D E F G H
2 4 6 8 10 12 14 16
L
R
STEREO SOURCE MONO SOURCE STEREO SOURCE
Figure 2 Figure 3
AUDIO FROM SOURCES
TO SF-16M RCA INPUTS
AUDIO FROM ADX OR HLX
TO SF-16M DB-25
DB-25
LOOP
OUT
DB-25
LOOP
OUT
RCA INPUTS ARE
NOT USED
RCA INPUTS ARE
NOT USED
Note: to create a mono
signal from a stereo
source, Audio Authority
recommends using
the SF-16M DSP for
optimal audio quality,
but when only one input
is available, a y-adapter
may be used.
ANY STEREO INPUT MAY
BE CONVERTED TO MONO
IN SF-16M DSP SETTINGS
SF-16M
SF-16MSF-16M