Category:Super High Fidelity
Country of Manufacture:Germany
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 10.5"
Number of heads: 3
Dimension: 8.2 x 19 x 17.5" (208 x 483 x 444 mm) Case: 11.6 x 21 x 18.7" (295 x 533 x 474 mm)
Head Composition: Permalloy
Head Configuration: Stereo - Stacked
# Motors: 3
Outputs: XLR Balanced
Frequency Response:(±1.5 dB): 38 cm
Wow and Flutter:7(R.M.S.): at 15 ips > 0.08%, at 7½ ips > 0.10%, at 3¾ ips >0.2%
Sound quality rating:8 / 10
Long-term reliability rating: 8/ 10
Weight: Chassis-55 lbs (25 kg) Case: 22 lbs (10 kg)
The Telefunken M12 was a versatile professional machine, available in a multitude of configurations. These included with or without input mixer, full, half or stereo heads (on a removable head block) and high speed (15 & 7½ ips) or low speed (7½ & 3¾ ips).
The transport was constructed on a very strong cast alloy frame of half-inch thickness. Three motors were used, a synchronous pole-changeable indirect capstan motor and two PAPST outer rotor motors. Reels of up to 10½ inches could be accommodated.
Speed tolerance: 0.1% / Start time: for nominal speed 0.2 seconds, for 0.1% wow & flutter > 0.1seconds / Timing accuracy: better than 1% / Fast wind time: less than 180 seconds with 1000m tape / Stopping time: (out of fast wind ) less than 3 seconds, tape end 2 seconds / Signal-to-noise ratio: full track: > 58dB at 38 cm / s and 53dB at 19 cm / s stereo: > 58dB at 38 cm / s and 56dB at 19 cm / s two track: > 55dB at 38 cm / s and 51dB at 19 cm / s / Crosstalk: > 38dB at stereo at 1kHz measured to DIN 45 521 > 45dB at two-track at 1kHz measured to DIN 45 521 / Total harmonic distortion: > 1% / Inputs (model with mixer): balanced, floating +6dBm (max +12dBm, impendence 5k ohms) / Outputs: balanced, floating +15dBm (max +18dBm) with load less than 600Ω / Dimensions: chassis: 8.2 x 19 x 17.5″ (208 x 483 x 444 mm) carrying case: 11.6 x 21 x 18.7″ (295 x 533 x 474 mm) / Weight: chassis: 55 lbs (25 kg) carrying case: 22 lbs (10 kg) / full-track mono, half-track stereo or mono (removable head block)