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2.4.2 Input 2—RCA
The second input channel is a stereo RCA jack which is then summed
to mono before the final output. Refer to the diagram below for wiring
directions.
2.4.3 Input 3—Stereo Euroblock
The third input channel is a euro block connector which can be wired to
any unbalanced input. Should you be wiring up a stereo source, use
both the left and right pins of the connector. A mono source will only
require the use of the ground and left pins.
2.4.4 Input 4—Stereo 3.5mm
The second input channel is a stereo RCA jack which is then summed
to mono before the final output. Refer to the diagram below for wiring
directions.
+/Left
-/Right
Ground
(Shield)
+/Left
-/Right
Ground
(Shield)
+
Ground
(Shield)
+/Right
+/Left
Shield
Right
Left
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2.5 Output Connections
Stewart Audio recommends using high-quality speaker wire and con-
nectors to send the output signal of your amplifier to the speakers. The
gauge of the wire will be dependent on both the output type used (4/8
ohm, 25V/70V, or 25V/100V) as well as the length of the run to the
speakers. Use the following tables as a guideline when selecting your
wire gauge.
4/8 Ohm Installation
25V/70V/100V Installation
Speaker leads connect by means of terminal block connectors supplied
with the unit. Strip speaker leads 1/4” and insert into connector ob-
serving proper polarity. With a small, flat-blade screwdriver, tighten the
screw until the leads are held securely in place. Inspect for possible
shorts or broken wires.
Distance Wire
Gauge
Up to 25 ft.
16 AWG
26-40 ft.
14 AWG
41-60 ft.
12 AWG
Distance Wire
Gauge
Up to 500 ft.
22 AWG
500-1000 ft.
20 AWG
Over 1000 ft.
18 AWG
