Inputs The H6 offers four main inputs (1-4), plus two additional inputs (L, R) that are derived from whichever capsule (X/Y, MS, Shotgun, or Dual XLR/TRS Combo) is plugged into the unit. The supplied XYH-6 X/Y capsule also provides a secondary input for connecting an external mic- or line-level signal via a stereo ?" Mic/Line In mini phone jack. When a connection is made to that jack, signal from the X/Y microphones is muted. All four main H6 inputs (inputs 1-4) are combo connectors that can accept either XLR or ¼" balanced or unbalanced phone cables. They can handle both mic- and line-level signals, which means that you can connect either external microphones or line-level devices like mixers, portable music players, electronic keyboards, or electric guitars or basses with active electronics (passive electric guitars or basses can also be connected with the use of a mixer or effects device). Internal switching contacts automatically detect the circuit of choice. Each of the six inputs (that is, 1-4 as well as L, R) has a dedicated gain control knob. In addition, the four main inputs and the EXH-6 capsule feature a -20dB pad, allowing you to prevent distortion even when high-level signals are introduced. In fact, with the use of the Pad switch, the H6 can input a signal 30dB louder and 14dB softer than any other Handy Recorder model. In addition, all capsules utilize higher voltage preamps (5 volts instead of the more commonly used 3 volts) for distortion-free recording, even at high volumes. A built-in instrumentation amp allows signals to be transmitted with minimal noise even when long cables are used. If you're using high-quality condenser (powered) microphones with the H6, no problem-a simple menu option allows the unit to provide Phantom Power (either +12, +24, or +48 volts) to any or all of the main inputs (inputs 1-4). Inexpensive condenser microphones requiring Plug-In Power (2.5 volts) can be connected to the X/Y capsule's stereo ?" Line In jack.