The TEAC A-2340SX is a legendary 4-channel quadraphonic reel-to-reel tape recorder, manufactured in Japan between 1976 and 1981. The model is best known for its "Simul-Sync" functionality, which allowed musicians—during the early days of the home studio revolution—to record audio track-by-track (multitrack) while maintaining synchronization. This model is the "little brother" of the well-known TEAC A-3340S. The primary differences are that the A-2340SX supports a maximum reel size of 7 inches and operates at lower tape speeds. Key Specifications • Track system: 4-track, 4-channel, stereo/monaural/multichannel system. • Heads: 3 heads (1x erase, 1x record, 1x playback). • Motors: 3 motors (2x reel drive, 1x capstan). • Tape speeds: 7.5 and 3.75 inches per second (ips). • Maximum reel size: Up to 7 inches. • Weight: Approximately 25 kg. • Additional features: Built-in Simul-Sync and a physical cue lever. Very good sounding professional Teac with button controlled quick acces. Very well engineered. Including the metal reels and a good tape.9 Plays and spins very good. Heads demagnetized and cleaned. Heads are as new still. Records and sounds excellent All Contacts cleaned With plexiglass cover. Little Signs of use only. No damages. Pictures are also description. Carefully insured shipped but extremely heavy. 31 kg with box, so maximum possible to ship with overweight charge.