AKAI 1730D-SS/1730-SS
1730-SS : ¥ 98,000 (around the early 1970 s)
1730D-SS : ¥ 79,500 (around the early 1970 s)
Commentary
4-channel stereo tape deck / recorder capable of recording and playing 4-channel and 2-channel stereo
The 1730D-SS is a tape deck, and the 1730 SS is a stereo tape recorder with speakers and amplifiers.
The 1730 SS / 1730 D-SS supports 2-2 4-channel stereo, which adds a surround effect by adding a rear 2 speaker to the front 2 speaker.
The 1730 SS has a built-in two channel stereo power amplifier that can also be used for the rear channel.
The head section consists of four heads, one recording head and one reproducing head for both four channels and two channels, and two erasing heads.
The control panel is of a slant type to improve operability.
Equipped with an auto shut-off mechanism. When the tape is fully wound and reaches the end, the auto shut-off lever and the shut-off switch work together to turn off the power of the entire unit.
Equipped with headphone port for front and rear only.
Equipped with a 4-digit index counter with reset button.
A unique reel presser mechanism is adopted. The reel is firmly fixed by pulling the reel presser on the end of the reel shaft toward you and turning it to the right or left.
Model Rating
Type | Tape Deck (1730D-SS) / Tape Recorder (1730 SS) | ||
Track system | 4-track 4-channel stereo 4-track 2-channel stereo |
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Maximum use reel | No. 7 | ||
Tape Speed | 19cm/s, 9.5cm/s, ± 1% | ||
Wow and flutter | 0.12% rms or less (19cm/s) 0.15% rms or less (9.5cm/s) |
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Recording (playback) compensation characteristics | NAB characteristics | ||
Frequency characteristic | 30 Hz ~ 22 kHz ± 3 dB (19cm/s) 30 Hz ~ 15 kHz ± 3 dB (9.5cm/s) |
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Distortion factor | 1.5% or less (19cm/s, 1 kHz, 0 VU) | ||
Output (1730-SS) | Music Power : 20W (10W/10W) Undistorted Output : 14W (7W/7W) |
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Signal-to-noise ratio | 50 dB or more | ||
Erasure rate | 70 dB or more | ||
Recording bias frequency | 100kHz | ||
Recording level display | Four VU meters | ||
Heads | 4-track 4-channel stereo recording and reproducing head : 1 each 4-Track / 2-Track Erasing Head : 1 Each |
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Fast-forward rewind time | 90 seconds (370m tape, 50 Hz) 75 seconds (370m tape, 60 hz) |
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Output | Line : 1.23 V (0 VU), optimum load impedance 20k Ω or more Headphone : 8 Ω Speaker (1730 SS only) : 8 Ω |
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Input | Microphone : 0.4mV/30k Ω Line : 40mV/100k Ω |
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DIN | 0.4V/5mV | ||
Recording time | 4-channel stereo : 30 minutes (19cm/s, 370m tape) 2-channel stereo : 1 hour (19cm/s, 370m tape) |
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Motor | Hysteresis synchronous 2 speed motor | ||
Speaker (1730 SS only) | 2 x 10 cm cone shapes | ||
Semiconductor used | Transistor : 19 Linear ICs : 8 units Power IC : 2 (1730-SS only) Diode : 10 pieces (6 pieces for 1730D-SS) |
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Pwer | 100 VAC / 110 V / 120 V / 200 V / 220 V / 240 V, 50Hz/60Hz | ||
Power consumption | 50W(1730D-SS) 75W(1730-SS) |
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External dimensions | Width 420x Height 450x Depth 240 mm | ||
Weight | 15kg(1730D-SS) 17kg(1730-SS) |
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Attachment |
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