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2 Setup
2.5 Choose Output Wire and Connectors
Technical Pro recommends using pre-built or professionally wired, high-quality, two- or four-
conductor, heavy gauge speaker wires. Figure 2.5.1 shows how a user would connect the L-
Series amplifier to a speaker using the Speakon™ connector.
Figure 2.5.2 shows another option users have when connecting the L-Series amplifier to a speaker.
Using banana plugs, spade plugs or simply bare wires, a user can connect two speakers to the amplifier.
Using banana plugs, spade plugs or bare speaker wires, a user can connect up to four speakers to
the amplifier. When connecting speaker wires to the banana binding post, be sure that you follow the
instructions very carefully. These connections will change depending on whether the unit is being operated
in Stereo or Bridged mode. In Stereo mode the banana plugs should be connected vertically in the CH.1
jacks (one wire in the positive and one in the negative jack). The same can be done for channels 2,3 and 4
depending on the number of inputs. In Bridged mode CH.1 and Ch.2 are combined and CH.3 and CH.4 can be
combined. If the CH.1 and CH.2 are Bridged, than the banana plug should be connected horizontally, along
the positive jacks of CH.1 and CH.2. If the CH.3 and CH.3 are Bridged, than the banana plug should be
connected horizontally, along the positive jacks of CH.3 and CH.4.
Using the guidelines below, select the appropriate size of speaker
wires based on the distance from amplifier to speaker.
Distance Wire Size
up to 25 ft. 16 gauge
26-40 ft. 14 gauge
41-60 ft. 12 gauge
61-100 ft. 10 gauge
101-150 ft. 8 gauge
151-250 ft. 6 gauge
CAUTION: Never use unshielded cable for output wiring.
Figure 2.5.1 ConnectorSpeakon™
Figure 2.5.2 Banana Plugs
L - SERIES 4 Way Professional Amplifier
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