SONY MU-D100
¥ 120,000 (around 1990)
Commentary
This is a stereo cassette deck for final commercial use equipped with a highly durable mechanism and functions convenient for editing.
The mechanism part is equipped with a heavy-duty long-life mechanism developed for full-scale business use.
The 3-motor direct drive system realizes stable tape running characteristics, and has excellent durability and stability even in hard use.
Equipped with Dolby HX Pro, which improves the high-frequency characteristics during recording and realizes clearer sound quality.
In addition, Dolby NR B/C is installed as a noise reduction system.
It is equipped with an hour meter that displays the total energizing time up to approximately 10,000 hours and shows the time of maintenance of the head, etc.
It is equipped with a pitch control that allows you to freely control the tape speed during playback within a range of + 20% to -15%.
It is equipped with an automatic music sensor (AMS) function that allows you to quickly find the beginning of or next song, a music scan function that can play only the beginning part of a song one after another, and a cue review function that enables fast forward rewind while listening to the sound.
It is equipped with an auto rewind that automatically rewinds when the tape ends, an auto tape selector that automatically sets the tape position just by inserting the cassette tape, and a linear electronic counter that displays minutes and seconds by FL tube.
Equipped with a synchronized start terminal, auto repeat playback is possible when one input / output is connected, and automatic relay playback is possible when two or more MU-D100 units are connected.
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Model Rating
| Type | Commercial stereo cassette deck |
| Truck type | 4-track 2-channel |
| Heads | Recording : Hard Permalloy Erasing : ferrites |
| Motor | Capstan x1 (direct drive) 2 x for Reel |
| Wow & flutter (EIAJ) | ± 0.08% Wpeak |
| Frequency Response (EIAJ, DolbyNR off) | 20 Hz ~ 17 kHz (TypeII, Chrome Position) 20 Hz to 15 kHz (TypeI, normal position) |
| Signal-to-noise ratio | DolbyNR off:56dB(EIAJ) DolbyNR C on:69dB(1kHz) |
| Distortion Factor (EIAJ) | 1% (1 kHz, TypeII cassette) |
| Reference Input Level / Impedance | Pin Jack (Unbalanced) : -10dBs/50k Ω |
| Reference output level / impedance | Pin Jack (Unbalanced) : -5dBs/47k Ω XLR-3-32 Type (Balanced) : + 4dBs/600 Ω or More |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption | 22W |
| External Dimensions (Excluding Maximum Protruding Part) | Width 482x Height 132x Depth 300 mm |
| Weight | 7.5kg |
| Attachment | 2 x RCA pin code |
| Remarks | EIA standard 19 inch rack-mountable (3U) |