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Fathom SA
-600W
Page 16
Input Mode
This feature is included to address signal grounding issues often encountered
in home theater systems when several components from different manufacturers
are interconnected. The Input Mode switch on the rear connection panel
alters only the “LINE INPUTS” and is designed to facilitate a quiet, hum-free
connection to your audio or home theater system. This switch has no effect on
signals connected to the “HIGH LEVEL INPUTS”.
The SA-600W ships with this switch in the “Isolated” position. If, with all
system components connected and turned on (but no source material playing),
you hear a continuous low-frequency hum through your SA-600W, move this
switch to the “Grounded” position and evaluate the difference in the noise level.
Use whichever switch position provides the least hum or noise. Note: If you
change equipment or add equipment to your audio system, you may need to
revisit the “Input Mode” switch setting to achieve the quietest signal path.
Subwoofer Outputs
The SA-600W is equipped with a pair of Neutrik speakOn® jacks for speaker
connections. Both jacks (labeled A & B) are configured for 2 wire termination
(s & speaker –) and are connected in parallel, inside the SA-600W, so you
can use either output when connecting a single subwoofer.
A pair of removable Neutrik speakOn® plugs (NL2FX) are supplied with the SA-
600W for making high-integrity connections. Each plug is keyed for insertion in the
rear “SUBWOOFER OUTPUT” jacks in one direction only. Once inserted, rotate
the plug 1/8 turn clockwise to lock in place. To disconnect, slide the thumb latch
back and rotate the plug 1/8 turn counter-clockwise to remove. Receptacles in each
plug accept 12 AWG to 16 AWG speaker wire. Each wire attaches to the terminals
marked “1–“ and “1+” (shown below).
To attach wires, insert the speaker cable through the strain relief and chuck. Strip
½ inch (12 mm) of insulation from the end of each wire, then use a small Philips
screwdriver to back out the set screws. Insert the bare wire into the receptacle,
seating it firmly so that no bare wire is exposed. While holding each wire in place,
tighten the set screw firmly, taking care not to strip the head of the screw.
Note: Use caution to ensure correct polarity and wire placement.
Slide the strain relief and chuck over the speaker cable, up to the plug body.
Align the chuck with the recesses in the plug body and tighten the strain relief onto
the plug body.
FUSE
FUS
E
Warranty void if serial number is removed, altered or defaced.
120 V ~ 60 Hz
F 6A H 250V
FUSE
FUS
E
Warranty void if serial number is removed, altered or defaced.
120 V ~ 60 Hz
F 6A H 250V
Strain Relief
Chuck
Plug Body
Speaker Cable
Plug Body
Wiring Detail
