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AKAI 1721W

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Technic details

Specifications

Type:
Tape Recorder
Track system:
4-track, 2-channel, stereo/monaural system
Heads:
1 x Recording / Playback
1 x Erase
Motor:
2-speed induction
Reel size:
Up to 7” reel
Tape speeds:
3 3⁄4 ips
7 1⁄2 ips

Wow and flutter:
Less than 0.14% RMS (7 1⁄2 ips)
Less than 0.18% RMS (3 3⁄4 ips)
Frequency response:
21Hz to 30kHz, ±3dB (7 1⁄2 ips, AKAI SRT Tape)
40Hz to 15kHz, ±3dB) (3 3⁄4 ips, AKAI SRT Tape)
30Hz to 18kHz, ±3dB (7 1⁄2 ips, regular tape)
40Hz to 13kHz, ±3dB) (3 3⁄4 ips, regular tape)
Signal to Noise Ratio:
Better than 50dB
Erase Ratio:
Better than 70dB
Crosstalk:
Better than 45dB (Stereo)
Better than 60dB (Monaural)
Bias Frequency:
63kHz
Total harmonic distortion:
Less than 2% (1kHz, 0 VU)
Fast Forward & Rewind Time:
80 / 100 sec. using a 1 ,200 ft. tape at 60 / 50Hz
Recording Capacity:
3 hours stereo recording using a 1 ,800 ft. tape at 3 3⁄4 ips
Output / Impedance:
1.23V / 30Ω (Line); Required load impedance - More than 10kΩ
100mV / 8Ω (Phone)
5W / 8Ω each (Speakers)
Input / Impedance:
0.5mV / 100kΩ (Mic)
150mV / 330kΩ (Line)
1V / 15mV (DIN)
Output power:
3W + 3W continuous power at 8Ω
5W + 5W total music power at 8Ω
Speakers:
2 built-in 5 x 7"
Semiconductors:
16 x Transistors
4 x Diodes
Finish:
Walnut case

Power Requirements:
AC 100V to 240V, 50 / 60Hz
Power Consumption:
50W
Dimensions (W x H x D):
358 x 360 x 248mm
Weight:
13.2kg
Year:
1973

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