"The XR-7 is a multitracker that combines a multi-function mixer with six inputs(two of which accept mic signals)and AUXofBI alternate mechanism, and a high-performance four-track cassette recorder with full logic controls, a high-quality,double-speedtape transport, and DOLBY C Noise reduction system TheXR-7 offers versatility and advanced functionality, including four-track simultaneous recording, punch in/out by footswitch, zero return/auto-playback, operation indicators, and instrument rehearsal mode at half speed. The XR-7 allows you to create high-quality sounds easily, using techniques such as playing four different instruments by yourself, track bouncing, tape sync, and mix down." Quite a few years old, comes complete with the original manual and powersupply. In full working condition. Looking for 40 O.N.O. Old SOS Review: Fostex XR7