Snell Basis 150 - Audio Connections; Line Level Input; Speaker Level Input; Speaker Terminal Connection Guide

CONNECTIONS
NOTE: Power is always supplied to the subwoofer electronics unless it is unplugged or switched
to the off position using the power toggle switch located in the lower left corner of the rear
panel. The auto-on circuitry only activates or deactivates the power amplifier. Make sure your
subwoofer and receiver are unplugged when making the connection.
Line level: Use one of the line level in jacks with most systems. These inputs accept the line
level signal from your receiver’s subwoofer output. When using the crossover control input, the
subwoofer’s circuitry filters out the high frequencies and sends the remaining low frequencies
to the subwoofer power amplifier.
Speaker level: Use these high-level terminals with receivers that do not have subwoofer
output. The speaker inputs accept both left and right channel speaker signals from your receiver.
NOTE: Certain receivers use speaker grounding circuits that may be incompatible with external
powered audio products, such as powered subwoofers. When speaker wire is used instead of line
level cables, this incompatibility can sometimes result in an audible hum when the receiver is
turned off or switched to a different speaker channel. See page 8 for more information.
HOW TO CONNECT USING THE SPEAKER TERMINALS
We recommend 16-gauge wire or thicker for runs up to 15 feet (4.5m) and 14-gauge wire or
thicker for longer runs. Separate the first few inches of the wire conductors. Strip off 1/2-inch
(12mm) of insulation from the ends of each speaker wire to expose the two conductors and
tightly twist the wire strands.
WARNING: To prevent electrical shock hazard, always switch off the amplifier or receiver when
making connections to the speaker.
When making all connections, be sure to connect the + (red) on the speaker to the + (red) on
the amplifier, and the - (black) on the speaker to the - (black) on the amplifier.
4
IMPORTANT: Typically, one side
of the wire is smooth. Connect
this side to the - (black) connec-
tion. The other side has a rib or
stripe. Connect this to the + (red)
connection.
Using the five-way binding posts: The binding posts
permit easy connection to banana plugs, spade lugs, and
bare wire. Insert the wire in the hole (as shown on left) or
a 3/8-inch spade lug over the post and tighten. For banana
plugs, remove the red and black caps from the end-holes
and insert either dual or single banana plugs (as shown on
right).