PHILIPS N4450
¥ 330,000 (around 1972)
Commentary
A 3-motor 6-head tape deck with a built-in HiFi amplifier.
The electronic silencer circuit eliminates the click sound at the start of recording.
The electronic memory stores the recording and playback modes.
This allows the memory to reproduce the previous mode with the lamp even after the power is turned on again.
Equipped with a queuing lever that can be used for heading out.
The winding speed is adjustable in 3 stages.
Equipped with an absence recording function, it is possible to record absence by combining with an electronic digital clock.
Recording techniques such as echo and multi-play are available.
Built-in 30W + 30W amplifier as HiFi amplifier.
Equipped with a tape tension comparator and reel size selector, stable tape tension is achieved.
It is compatible with tape number 10.
Remote control unit sold separately allows operation from a remote location.
Model Rating
Type | Tape deck with built-in amplifier |
Maximum reel used | No. 10 |
Recording system | Four track stereo and monaural |
Tape speed | 19, 9.5, 4.75cm/s |
Frequency characteristic | 19cm/s : 40 Hz to 20 kHz 9.5cm/s : 40 Hz to 15 kHz 4.75cm/s : 60 Hz to 8 kHz 6 dB or less |
Playback equalizer | 19cm/s : 50 + 3,180 μ s 9.5cm/s : 90 + 3,180 μ s 4.75cm/s : 120 + 3,180 μ s |
Signal-to-noise ratio | 19cm/s : -50dB or more 9.5cm/s : -50dB or more 4.75cm/s : -47dB or more |
Wow flutter | 19cm/s : + / - 0.15% or more 9.5cm/s : + / - 0.2% or more 4.75cm/s : ± 0.35% or more |
Velocity deviation | 19cm/s : + / - 1 per cent 9.5cm/s : + / - 1 per cent 4.75cm/s : + / - 2 per cent |
Bias | 114 kHz ± 10% |
Time required for reverse switching | Up to 2 seconds |
Head Used | 2 Recording Heads Playhead x2 Two double-gap erase heads |
Drive motor | One brushless DC motor for driving the capstan For Reel Drive : 2 DC motors |
Constant speed recovery time | Reaches nominal speed within 300 msec |
Bias current | Nominal bias value is reached within 100 msec |
Rated output | 20W+20W(D<1%) |
Music power | 30W+30W |
Distortion factor | Not more than 1% |
Rumble filter | 30Hz:-10dB |
Scratch filter | 15Hz:-12dB |
Loudness control | 50 Hz : + 14 dB, 10 kHz : + 6 dB |
Input terminal | Mic : 2 strains Tuner : one line Player : 1 system Auxiliary terminal : 1 system |
Output terminal | Speaker : 1 system Headphone : One system Monitor amp : One line |
Input / output terminal | 180 ゜ 5P DIN connector : 2 lines |
Remote control terminal | Special 10P DIN connector : 1 line |
Power consumption | Up to 120W |
External dimensions | Width 520x Height 500x Depth 210 mm |
Weight | Approx. 20 kg |
Sold Separately | Remote Control N6719 (¥ 15,000) |