Category:Mid High Fidelity
Country of Manufacture:Germany
Release dates:1969 - 1972
Speeds: 3 3/4
Max Reel Size("): 7"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:( 3dB): 60 - 13,000Hz (to DIN 45 511)
Wow and Flutter:0.3%
Sound quality rating:5 / 10
Long-term reliability rating: 5/ 10
The M 501 was a low-cost single-speed mono recorder with a maximum reel size of 5¾ . inches. It was particularly noteworthy because it was fabricated almost entirely from modern plastics.
Physically, the layout was clean and functional: a row of five positive piano keys at the front left controlled transport functions ( fast rewind, play, fast forward, stop, and lastly, record in red). next to these was the track select slide switch and a pause control. On the right were a pair of wheel-like knobs, the first had a dual purpose – record gain and playback tone andthe other on-off and playback volume,
Semi-conductors: / Audio output power: 2.5 watts push / pull / Inputs: radio / microphone 0.2mV into 5 kΩ, pick-up / tape 90mV into 2.2 mΩ / Outputs: radio 1V into 18 kΩ, external speaker 4.5 Ω / Speakers (M 207 only):: two detachable units which comprised part of the case when stored / Dimensions: 13¾ x 11¼ . x 5¼ .” (350 x 286 x 130mm) / Weight: 11 lbs (5 kg) / quarter-track mono