1.) Tape size: 1/4” tape, switchable reel size 5", 7" or 10 1/2" reels.
2.) Tape head: 2 track sometimes called half track heads because each channel uses half of the tape for stereo. This results in maximum signal on the tape and the best sound.
3.) Tape speed: Selectable 7 1/2 inches per second or 15 inches per second record and playback.
4.) EQ Switch: Select either NAB or IEC record and playback, (IEC produces the best sound).