Mackie 406M Owner's Manual - Page 25

The TAPE IN signal is routed to the mixer bus just after the RUMBLE REDUCTION switch and just before the TAPE IN LEVEL control, MAIN MASTER control, and MAIN EQUALIZER. The TAPE OUT signal is tapped just after the RUMBLE REDUCTION switch, and before the MAIN MASTER control and MAIN EQUALIZER. Caution: When using the TAPE OUT connectors for recording, don't connect the output of the tape deck to the TAPE IN connectors. If you do, MAKE SURE the TAPE IN LEVEL control is turned all the way down or you will create a feedback loop that will cause great distress to you and everyone around you. For parallel connections: 8 ohms + 8 ohms = 4 ohms 4 ohms + 4 ohms = 2 ohms IEC Socket This is where you connect the supplied AC linecord to provide AC power to the PPM Series powered mixer. Plug the linecord into an AC socket properly configured for your particular model. Note: If you happen to lose the AC linecord, replacements are easily available at any office/ computer supply store or Radio Shack® (ask for part number 278-1257). Rear Panel Connections SPEAKER OUT This is a 1/4" connector that produces an unbalanced speaker-level signal. Use 1/4" TS speaker cables to connect the SPEAKER OUTs to the inputs of your speakers. Use at least 18 gauge (18AWG) speaker wire. Caution: Don't use standard guitar cables to make these connections. Guitar cords are designed for line-level signals (millivolts and milliamps), not speaker-level signals (several volts and several amps). There are two SPEAKER OUT jacks for each amplifier. The jacks are wired in parallel so if you connect two speakers to an amplifier, the load presented to the amplifier is the parallel impedance of both speakers. This impedance must be two ohms or greater. 120 VAC 60HZ 320W ON POWER W T LEFT / MAIN SPEAKER OUT RIGHT / MONITOR SPEAKER OUT OUTPUT POWER: 250 WATTS / CHANNEL MINIMUM SPEAKER LOAD: 2 OHMS / CHANNEL Stereo Version Speaker Connectors (408S) POWER AMP 1 / MAIN SPEAKER OUT POWER AMP 2 / MONITOR SPEAKER OUT OUTPUT POWER: 250 WATTS / CHANNEL MINIMUM SPEAKER LOAD: 2 OHMS / CHANNEL Mono Version Speaker Connectors (408M) 25