Model:Heimstudio Mk 45500
Country of Manufacture:Germany
Release dates:1964 - 1968
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 3
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:(all 3 dB): 7½ ips: 40Hz - 17kHz
Wow and Flutter:(better than) 0.1% at 7½ ips and 0.15% at 3¾ ips
Signal-to-Noise Ratio:better than 50dB
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
The Heimstudio (home studio) 45500 was a stereo tape deck using a Truvox Series 90 three-motor tape transport.
Manufactured by Ing. Franz Leben of Dachau, it was sold exclusively through the ‘Quelle’ mail-order and department stores.
The 45 500 was designed for horizontal as well as vertical operation and was fully transistorised. Features included two speeds (3¾ & 7½ ips), piano key push button transport controls, easy tape threading, twin VU meters, input mixing, front panel DIN input/output connections and three heads with off-tape monitoring.
Price when new (in Germany) was 950.00 DM.
Inputs: microphone 0.25 mV 200Ω. radio 6 mV 50 kΩ. phono 100 mV 1 MΩ / Outputs: tape head 0.6V 10kΩ, line 0.6V 1kΩ / Semiconductors: 27 transistors / Rewind speed: 55 seconds for 1,200ft / Dimensions: 16.9 x 15.5 x 8.9 inches (430 x 395 x 225 mm) / Weight: 30.8 lb (14 kg) / half-track stereo