The AP 13 accommodates the signals from two pickups from any acoustic instrument, where the pickups are wired to the tip and ring of a standard stereo 1/4" TRS (Tip, Ring, Sleeve) plug. You do not need internal preamps when using the AP 13. Phantom power voltage is available for electret and other condenser mic pickups. It is assumed one pickup is a piezo-type while the other is some type of microphone.
- Slide the Input Wiring switch to the correct position agreeing with your pickup wiring situation.
- If your mic pickup requires Phantom Power, select it using the switch on the AP 13 rear. Make sure the appropriate LED lights by the INPUT jack.
- Turn the MAIN OUT LEVEL controls down.
- Connect the AP 13 to your amplifier using the 1/4" MAIN OUTPUTS or use the HEADPHONE jack.
- Initially, turn the PIEZO and MIC PICKUP GAIN TRIM controls half way up.
- Move each LOW CUT slider to the top (15 Hz); center all EQ sliders; center the PAN sliders; leave the INVERT pushbuttons out; and position the LEVEL sliders to “4”
- Plug your instrument into the INPUT jack on the front of the AP 13 with a stereo 1/4" TRS cable.
- Power up the AP 13, then turn on your amplifier.
- Play your instrument and slowly turn up the MAIN OUT LEVEL controls. You should hear sound from your speakers. If not, recheck all settings and wiring, and refer to the manual.
Never connnect anything except an approved Rane power supply to the red thing that looks like a telephone jack on the rear of the unit. This is an AC input and requires special attention if you do not have a power supply exactly like the one originally packed with your unit. See the full explanation of the power supply requirements elsewhere in this manual.