Audio Database
1730-SS
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
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)
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)
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)
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
Fast-forward rewind time 90 seconds (370m tape, 50 Hz)
75 seconds (370m tape, 60 hz)
Output Line : 1.23 V (0 VU), optimum load impedance 20k Ω or more
Headphone : 8 Ω
Speaker (1730 SS only) : 8 Ω
Input Microphone : 0.4mV/30k Ω
Line : 40mV/100k Ω
DIN 0.4V/5mV
Recording time 4-channel stereo : 30 minutes (19cm/s, 370m tape)
2-channel stereo : 1 hour (19cm/s, 370m tape)
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)
Pwer 100 VAC / 110 V / 120 V / 200 V / 220 V / 240 V, 50Hz/60Hz
Power consumption 50W(1730D-SS)
75W(1730-SS)
External dimensions Width 420x Height 450x Depth 240 mm
Weight 15kg(1730D-SS)
17kg(1730-SS)
Attachment
1730D-SS:



1730-SS:
No. 7 4-channel stereo demo tape
No. 7 empty reel
Two DR-111 connection codes
Two spare fuses
No. 7 4-channel stereo demo tape
No. 7 empty reel
DR-111 connection code
Two spare fuses