4-channel / 2-channel Stereo Tape Deck
An entirely new world of sound has been created by Akai's electronics engineers who have developed a new and sophisticated line of 4-channel surround stereo equipment. Included in this line are the exciting 1730D-SS 4-channel/2-channel Stereo Tape Deck and 1730-SS 4-Channel/2-Channel Stereo Tape recorder.
With either system, you're completely surrounded in sound with four speakers, left and right in front, and left and right in the rear. This system gives you a real "sense of presence", the feeling of being exactly in the middle of a live performance. Both models are designed to be used for not only 4-channel stereo but also 2-channel stereo as well.
The 1730D-SS is perfectly matched with Akai's exclusive AA-6100 amplifier. this amplifier has 80 W music power for dynamic 4-channel stereo sound and accommodates both 4-channel and 2-channel stereo operation.
Akai's dependable 2-lever system complements the high grade parts and robust construction of this rugged 4-channel/2-channel stereo model
It is regular practice to employ mechanical control in one-motor tape decks. Akai has long since employed this 2-lever system in our one-motor decks. When compared to an ordinary 1-lever system, because the Play/Rec and F.Fwd/Rew Levers are independent, the movable range of the levers are shorter, and operation is lighter. Also, because the F. Fwd/Rew Lever is separate, mis-operation is minimized. Further, because of the mechanical structure of this control system, other parts are not unfavourably influenced and mechanism endurance is extended. Rectangular shaped Control Panel with proportionately balanced controls.
4-Head System
Durable 2-Lever Controls for Extra Dependability
Instant tape/Source Monitoring
Newly Designed Slanted Control Panel for Easy Operation
Front and Rear Channel Headphone jacks for Easy Monitoring or Private Headphone Listening
Automatic Stop and Shut-Off
4-Digit Index Counter
Built-in Reel Retainers
Pause Control
Specifications
Recording System: In-line 4-track, 4-channel stereo and 4-track 2-channel stereo recording
Playback System: In-line 4-track, 4-channel stereo and 4-Track, 2-channel stereo playback
Tape Speed: 3-3/4 and 7-1/2 ips
Speed Deviation: within ±1,5% at all speeds
Reels: 7", 5" reels can be used
Wow and Flutter:
7-1/2 ips : less than 0,15% rms
3-3/4 ips : less than 0,2% rms
Frequency Response
7-1/2 ips : 30 to 22,000 Hz ±3 dB
4-3/4 ips : 40 to 13,000 Hz ±3 dB
Signal-to-Noise Ratio: better than 48 dB
Total Harmonic Distortion
Line Output : within 2% at 1,000 Hz 0 VU recording
Main Output : within 3% at 1,000 Hz 5W (8 Ω )
Crosstalk: less than -50 dn (track) -40 dB (channel)
Erase Ratio: less than 70 dB
Insulation Resistance: better than 50 MΩ
Insulation Durability: 1,000 V AC for more than one minute duration
Line Output: +4 dB ±1,5 dB (1,228 V), at 0 VU indication, 250 Hz 0 VU recorded Tape. Required load impedance more than 25 k Ω
DIN Output: -6 dB ±1,5 dB when using a 250 Hz recorded tape. Required load impedance more than 50 k Ω
Line Input: above 40 mV/ 330 k Ω
Mic. Input : above 0,4 mV/30 k Ω
DIN Input : above 20 mV/100 k Ω
Fast Forward and Rewind Time:
90 sec. 1,200 ft. Tape at 50 Hz
70 sec. 1,200 ft. Tape at 60 Hz
Motor: Hysteresis synchronous 2 speed motor
Horse Power : 1/100 HP
Power Ratio : 85%
Revolutions : 3,000 to 1,800 RPM (at 50 Hz); 3,600 to 1,800 RPM (at 60 Hz)
Condenser Capacity: 3 µF (at 50 Hz); 2 µF (at 60 Hz)
Heads
Recording: In-line 4-track 4-channel stereo (4-track 2-channel stereo)
Impedance : 125 Ω ±20% at 1,000 Hz
Gap : 4/1,000 mm
Playback : In-line 4-track 4-channel stereo (4-track 2-channel stereo)
Impedance : 1,200 Ω ±15% at 1,00 Hz
Gap : 2/1,000 mm
Erase head : In-line 4-track 2-channel stereo
Impedance : 195 Ω ±10% at 100 kHz
Erase Head : In-line Full track
Impedance : 350 Ω ±10% at 100 kHz
Power Supply: 100 to 240 V AC, 50/60 Hz
Power Consumption: 55 W
Dimensions (W x H x D): 420 x 450 x 240 mm (16,5" x 18" x 9,5")
Weight: 17 kg (37,5 lbs)
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