High-Level Input(speaker cables)Low-Level Input(RCA)Speaker ConnectionsConnect speaker wiresobserving polarity. The minimumimpedance load for the AX260,AX440, AX460 and AX490is 2 ohms stereo and 4 ohmsbridged. Use of loads lower thanthese is not recommended andmay cause amplifier damage.The AX260, AX440, AX460 andAX490 can be wired for stereo,bridged or stereo/bridgedsimultaneous operation.Input Signal ConnectionsLow Level Input (RCA)Low level (RCA) input signal is preferred for best performance. Typical trunk-mountamplifier installations require a 17-20 foot RCA cable. Most trucks and under-seatapplications require a 6-9 foot RCA cable. Using twisted pair construction RCA cableswill minimize noise.High Level Input(Speaker Wire)High level inputs should only be usedwhen RCA outputs are not availablefrom the head unit. Connect thehead unit speaker outputs tothe high level input connectoras shown below. The black wire(signal reference ground)may ormay not require a connection tochassis ground - depending on yourparticular installation.Subwoofer (mono)Typical Bridged Wiring(4 ohms minimum)2 Speakers (stereo)Typical Stereo Wiring(2 ohms minimum)LRNote: Do not use both low and high level inputsat the same time - connect only one or the other.High level inputs not available on AX3000M,AX4000M and AX5000M..AX260 speaker connections shown9INSTALLATIONAmplifier Connections1-8 ohms2-8 ohms