• The Erikson Vestax MR-300 is a multitrack personal audio recorder that you can use for a variety of purposes, such as dictating minutes, recording your musical efforts or learning a foreign language. It was produced in the early 1990s, but can be found used. However, the more time that goes by the rarer these pieces of machinery become.
  
  

Recording Specs

• The Vestax MR-300 has four recording channels. They can be used either two at a time in hi-fi mode or as one single channel in multimode, which uses all four simultaneously. It has four playback channels as well, and a bias frequency of 80 kilohertz. The equalization capacity is 3180, + 70. It has Dolby Type B noise reduction.
  
  

Mechanical Specs

• The Vestax MR-300 has a 1 DC motor to spin the tape, which uses two heads, one for recording and the other for playback. The tape speed is roughly 2 inches per second, but there is a 1 percent variation between models. This speed translates into a fast winding time of 110 seconds to go through a C-60 tape.
  
  

Size and Performance

• The Vestax MR-300 weighs four pounds, and is 12 inches long, 3 inches high and 6 six inches deep.
  
  With regards to playback performance, the Vestax MR-300's frequency response is between 40 and 10 kilohertz, with a 3 decibel margin of error. There is a 60 decibel signal-to-noise ratio.