Inter-M A-120 - Manual (Page 8)

6 A-60/120
PUBLIC ADDRESS AMPLIFIER
Connecting Speakers Connecting Speakers
Before connecting speakers to your A-60/120 unit, be sure to disconnect the AC power cable. Make certain that
the total impedance is not less than the rated impedance indicated.
For 4Ω low-impedance speakers, connect in parallel, with the positive (+) connectors to the 4Ω terminal and the
negative (-) connectors to the COM terminal. See Figure below.
For high-voltage distributed systems, connect with matching transformer to either 70V or 100V terminals, as per
Figures below. Be certain that the total impedance does not equal less than the rated impedance.
FOR 4Ω TERMINAL
FOR 70V TAP TERMINAL FOR 100V TAP TERMINAL