9
DB-25 Audio Connections
SF-16M units may be linked together to create systems up to 64 outputs (
see page 16 for hookup details.
) The DB-25
ports streamline this type of expansion, and also serve as a connection from other 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 first SF-16M chassis (
Figure 3
).
2. Direct input from an Audio Authority audio matrix:
The SF-16M may serve as an amplifier for Audio Authority audio
matrix switchers such as the ADX-0808/ADX-1616 and the HLX 2278 audio output card (
Figure 4
). In this scenario, the
SF-16M receives all audio content from the ADX or HLX and passes the audio through to the amplified outputs. The
HLX or ADX provides all of the matrix switching. (
See Figure 3 below.
) If the volume levels will be controlled from the
HLX or ADX matrix, turn up all SF-16M outputs to maximum volume (-0dB.)
CONNECTIONS - Source Inputs
RCA Line Inputs
The SF-16M includes 16 RCA audio inputs that can be configured as mono, stereo or a combination of both mono and
stereo.
Figure 1
provides examples of all configurations.
NOTE: Specify input configurations using the PC Setup Utility (page 22)
or the front panel menu (page 17.)
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
SF-16M
SF-16M
SF-16M
Figure 3.
Figure 4.
1 2
3
4
5
6
7
8
9
10
11 12
13
14
15 16
ETHERNET
USB
RS-232 IN
RS-232 OUT
LINK
SPEED
MAIN IR
IN
MAIN IR
OUT
UNIT ID
DB25 AUDIO INPUT
CONTACT CLOSURE
5V - 24V AC / DC
AUDIO LOOP OUTPUT
LINE INPUTS
OUT
IN
1 2
IN OUT
SYSTEM
TRIGGER
AUDIO
OVERRIDE
Set voltage selector
and install correct
fuses according to
local power supply.
Régler le sélecteur
de tension et
installer les fusibles
corrects selon
l’alimentation locale.
4002715
1 3 5 7 9 11 13 15
2 4 6 8 10 12 14 16
L
R
ETL LISTED CONFORMS
TO UL STD 60065
CERTIFIED TO CAN/CSA
STD C22.2 NO. 60065
Audio Authority® Corp. • 2048 Mercer Rd. Lexington, KY 40511 USA
800-322-8346 • 859-233-4599 • www.audioauthority.com
Model SF-16M 16-Channel
Digital Matrix Amplifier
VOLTAGE SELECTOR
OUT
IN
CAUTION: Do not connect Ethernet to FlexPort
100-120V~ 50-60 Hz 1125W
Replace Fuses Only
with T 10A, 250V
Remplacer Uniquement avec
Fusible T 10A, 250V
TECH TIPS
STEREO SOURCE
MONO SOURCE
STEREO SOURCE
About Y Adapters:
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 RCA input jack is available, a
y-adapter may be used.
Figure 1.
Any Stereo input may be converted to two mono inputs using PC Setup Utility or Front Panel Controls.
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