Apple 4400/200 PC manual Sound Output

	Specifications	I/O Interfaces - 9
Sound		16-bit stereo audio input and output—stereo in, stereo record,
		stereo out. Up to 44.1 KHz sampling rate.
Sound Output		One 3.5-mm sound output port for line-level devices such as
		powered loudspeakers.
Sound Input		One 3.5-mm sound input port for stereo sound input. The sound
		input port supports the Apple PlainTalk Microphone. In
		addition, the sound input port supports a standard stereo
		(miniplug-to-RCA) cable adapter for connecting stereo
		equipment to the computer. The port does not support the Apple
		Omni microphone (the round microphone shipped with some
		earlier models of Macintosh) or the attenuated RCA adapter
		provided with some models of Macintosh.