Nady SPA 850 Owners Manual - Page 8

CONNECTIONS • Parallel (Mono) Mode To put the amplifier in parallel-mono mode, first turn the amplifier off, then slide the mode selector switch (13) to the left "PARALLEL (MONO)" position and properly connect the input/output wiring as shown. A signal into any input jack will drive both channels directly. You can patch the input signal on to any other amps suing any of the remaining input jacks. (Note: Do not connect a speaker load less than 2 ohms as it can damage your amplifier.) [Note: Do not use the "PARALLEL (MONO)" switch when feeding the amp 2 separate signals.] To additional amplifier(s) for "daisy-chaining CHANNEL A CHANNEL B PIN 1+ + PIN 1- - CHANNEL A PIN 1+ + PIN 1- - (Note: You can also connect both channel outputs to the Channel A Speakon™. Ch A Pin2+ = ChB Pin1+ and Ch A Pin2- = Ch B Pin1-) • Bridged Mono Mode To put the amplifier in bridged mono mode, turn the amplifier off and slide the mode selector switch (13) toward the right "BRIDGED" position and properly connect the input/output wiring as shown. The signal is input into CH-A. Keep the level control of channel "B" turned completely down (counter clock wise). (Note: Do not connect a speaker load of less than 4 ohms as it can damage your amplifier.) (Note: This mode produces a large amount of power. Be sure that your wiring and speaker can handle it.) Do Not Use CHANNEL A CHANNEL A PIN 1+ PIN 2+ Do Not Use This Speakon™ for Bridge Mode + - 9