World's most advanced portable Stereo Tape recorder. Virtually a studio in a suitcase, the Newcomb SM-310 combines all the features wanted by professional in a compact stereo tape recorder. Each channel has two inputs, each input its own control. All pre-amplification needed for recording and playback is built in. A four-digit counter pinpoints tape position. Precious tape is handled with extraordinary gentleness. The SM-310 is a half-track, two channel, two speed machine for either stereo or monophonic recording and playback.