Owner's Manual

Total Amperage 13–16 ft.
(4–4.9 m)
16–19 ft.
(4.9–5.8 m)
19–22 ft.
(5.8–6.7 m)
22–28 ft.
(6.7–8.5 m)
85–105 A 2 AWG
(33.6 mm
2
)
2 AWG
(33.6 mm
2
)
2 AWG
(33.6 mm
2
)
0 AWG
(53.5 mm
2
)
105–125 A 0 AWG
(53.5 mm
2
)
0 AWG
(53.5 mm
2
)
0 AWG
(53.5 mm
2
)
0 AWG
(53.5 mm
2
)
125–150 A 0 AWG
(53.5 mm
2
)
0 AWG
(53.5 mm
2
)
0 AWG
(53.5 mm
2
)
0 AWG
(53.5 mm
2
)
Signal and Speaker Connection Considerations
When connecting your stereo and speakers to the amplifier,
observe the following considerations:
• Each set of zone speaker terminals on the amplifier is paired
to the RCA inputs for that zone.
• Each channel supports a nominal 4 Ohm speaker load
impedance, and a 2 Ohm minimum speaker load impedance.
• You can connect two speakers in parallel on a single
channel, and the combined impedance must be greater than
the 2 Ohm minimum load impedance (Connecting Multiple
Speakers or Subwoofers In Parallel, page 3).
• You can connect either a zone low-level output or a
subwoofer low-level output from the stereo to any of the zone
RCA inputs on the amplifier.
• You should use 16 AWG (1.31 mm
2
) speaker wire to connect
speakers and subwoofers to the amplifier.
• You should observe the zone and polarity markings for each
channel when connecting speakers to the amplifier. For
example, Z1L indicates the ZONE 1 left channel, and Z1R
indicates the ZONE 1 right channel.
• If you are connecting a combination of speakers and
subwoofers to the amplifier, you should connect the
subwoofers to ZONE 2 or ZONE 4 as illustrated below.
These zones have dedicated BASS BOOST controls.
• You can connect a subwoofer to a single channel, but you
should connect it using bridge mode to get the best
performance (Connecting a Speaker or Subwoofer in Bridge
Mode, page 3).
In the following example, 4 Ohm subwoofers are connected to
the bridged terminals for ZONE 2 and ZONE 4, and pairs of
4 Ohm speakers are connected to the right and left channels for
the other two zones.
In this example, you must connect the subwoofer low-level
outputs from the stereo to the ZONE 2 and ZONE 4 RCA
connectors on the amplifier (using RCA splitters), you must
connect the two zone low-level outputs from the stereo to the
other two zone RCA connectors on the amplifier.
Speaker Wire Gauge Guide
You should use 16 AWG (1.31 mm
2
) speaker wire for most
installations. If your wire run is longer than 10–13 ft (3–4 m), you
can use this table to determine if you need to use a larger gauge
of wire. This table accounts for terminal connection resistance.
NOTE: If you are using aluminum or tinned wire, you should use
a wire two gauges larger than the gauge listed below to
compensate for a potential voltage drop due to the wire material.
Distance between the
amplifier and speaker
4 Ohm load 2 Ohm load
0–7 ft. (0–2 m) 18 AWG (0.82 mm
2
) 18 AWG (0.82 mm
2
)
7–13 ft. (2–4 m) 18 AWG (0.82 mm
2
) 16 AWG (1.31 mm
2
)
13–19 ft. (4–6 m) 16 AWG (1.31 mm
2
) 14 AWG (2.08 mm
2
)
19–22 ft. (6–7 m) 16 AWG (1.31 mm
2
) 12 AWG (3.31 mm
2
)
22–28 ft. (7–9 m) 14 AWG (2.08 mm
2
) 12 AWG (3.31 mm
2
)
Connecting Multiple Speakers or Subwoofers In Parallel
You can connect multiple speakers or subwoofers with the same
impedance rating together in parallel. When connecting
speakers of the same impedance rating in parallel, you must
calculate the total impedance by dividing the common
impedance rating by the total number of speakers connected in
parallel. For example, if you connect two 4 Ohm speakers in
parallel, the resulting impedance is 2 Ohm (4 ÷ 2 = 2).
NOTICE
You must not connect a series of speakers with an impedance
less than 2 Ohm to a single channel on the amplifier.
Connecting a speaker or series of speakers with an impedance
less than 2 Ohm to a single channel may damage the amplifier
and voids your warranty.
1
Connect speaker wire to the positive terminal for a channel or
zone on the amplifier .
2
Connect speaker wire to the positive terminal on each
speaker.
3
Connect the wires from the positive terminals connected to all
speakers in the channel or zone to the wire connected to the
negative terminal on the amplifier .
4
Repeat this procedure for the negative terminal on the
amplifier and all speakers in the channel or zone.
Connecting a Speaker or Subwoofer in Bridge Mode
Connecting a speaker or subwoofer in bridge mode increases
the amount of power that can be delivered by combining two
output channels together. This is beneficial for large subwoofers
that move large volumes of air and for playing speakers louder
without experiencing clipping in the audio.
NOTICE
A speaker connected in bridge mode must be capable of
handling the increased output power. Bridge mode can produce
more than double the output power of a single channel.
You should connect only a 4 Ohm load to the bridged terminals
on a zone. Connecting a 2 Ohm load to the bridged terminals
may cause damage to the amplifier, speaker, or subwoofer.
NOTE: When bridging the channels in a zone, you must use an
RCA splitter to send the same signal to both the left and right
channels of the zone.
1
Connect speaker wire to the positive terminal of the left
channel for a zone.
2
Connect speaker wire to the negative terminal of the right
channel for a zone.
SG-DA82000 Signature Series Installation Instructions 3