Audio Database

AD-F70M
Commentary

A metal-compatible cassette deck that pursues perfection in basic performance and operability.

In addition to the 3-step tape selector with independent bias and equalizer, you can fine-tune the bias of each of LH, FeCr and CrO2 tapes.

Uses Sendust head for the head.

The linearity of the recording amplifier is 20 dB (0 VU) and is compatible with metal tapes.

A dual motor drive system is used for the mechanism.

In addition to the VU meter, it is equipped with a 9-point multi-peak indicator.

Equipped with auto repeat and memory repeat mechanism.

It has a queue review function.

Equipped with a tape level meter.

Equipped with a rec mute mechanism.

Equipped with a pure electronic full autostop mechanism.

Equipped with a Dolby system.

Equipped with a synchro operation mechanism.

Equipped with timer standby mechanism, and by connecting an external timer, absence recording and alarm clock playback are possible.

There was a remote control unit and a handle for rack mounting sold separately.

Model Rating
Type Stereo cassette deck
Track system 4-track 2-channel
Frequency characteristic
-20VU recording LH Tape : 20 Hz ~ 16 kHz
FeCr Tape : 20 Hz to 19 kHz
CrO2 Tape : 20 Hz to 18 kHz
Metal Tape : 20 Hz to 19 kHz
0 VU Recording CrO2 Tape : 25 Hz ~ 9 kHz + 2-3 dB
Metal Tape : 25 Hz ~ 12.5 kHz + 2-3 dB
Signal-to-noise ratio 53 dB (Dolby NR off, LH peak level)
65 dB (Dolby NRon, FeCr peak level)
Wow flutter 0.04%(WRMS)
Tape speed 4.8cm/s
Fast forward and rewind time 65 seconds
Recording system AC Bias (105 kHz)
Distortion factor 0.9% or less (0 VU, FeCr tape)
Erasing method AC Erase
Input Sensitivity / Impedance Line : 50mV/50k Ω or more
Mic : 0.25mV/200 Ω ~ 10k Ω Compatible
Output Level / Impedance Line : 0.41V/50k Ω or more compatible
Headphones : 2mW/8 Ω (0 VU)
Semiconductor used IC : 17
Transistor : 85
Diode : 79 pcs
LED : 15
Pwer 100 VAC, 50Hz/60Hz
Power consumption 35W
External dimensions Width 450x Height 120x Depth 327 mm
Weight 9.5kg
Sold Separately Audio Handle AH-10 (¥ 2,000)
Remote Control Unit RC-10 (¥ 9,000)