Philips N4450

Data[edit]

General

  • Manufacturer: Philips
  • Model: N4450
  • Type: Auto-Reverse Reel Tape
  • Years of manufacture: 1971 - 1975
  • Manufactured in:
  • Color: Silver / Black (wood covered with leatherette and clear cover).
  • Remote control: Cable remote control N-6719 optional
  • Power consumption: 120 W
  • Dimensions (WxDxH): 520 x 210 x 500 mm
  • Weight: approx. 23 kg
  • Original price approx.: 2'500 DM
  • New price remote control: 150 DM


Connections

  • Number of inputs:
    • 2x microphone: 0.2 mV, 2 kOhm
    • Phono MM: 1.5 mV, 47 kOhm
    • Phono crystal: 100 mV, 1 MOhm
    • Radio: 2 mV, 20 kOhm
    • Tuner: 100 mV, 100 kOhm
  • Number of outputs: 3
    • Line Out: 1 V, 50 kOhm
    • Monitor: 1 V, 50 kOhm
    • Amplifier: external speakers 4 - 8 Ohm
    • Headphones: max. 3 V, 400 Ohm


Technical data

  • Max. coil diameter: max. 26,5 cm
  • Drive: 3 motors, 2 x DC motors for winding, 1 x Hall servo motor for capstan (2 tone shafts), automatic switching of the tape run at the end of the tape in the opposite direction
  • Heads: 6
  • Tracks: 4
  • Tape speeds: 4.75 cm/s / 9.5 cm/s / 19 cm/s
  • Slip:
  • Synchronous speed fluctuations:
    • at 4,75 cm/s: 0,35%
    • at 9.5 cm/s: 0.20%
    • at 19 cm/s: 0.15%
  • Total frequency response:
    • at 4.75 cm/s: 60 - 8,000 Hz
    • at 9.5 cm/s: 40 - 15,000 Hz
    • at 19 cm/s: 40 - 20,000 Hz

Signal-to-noise ratio: > 45 dB (19 cm/s, full scale)

  • Crosstalk attenuation: > 60 dB (1000 Hz, mutual double-track recording)
  • Distortion factor: < 3%
  • Equalization:
  • Attenuation of one track by erasing the other: < 0,5 dB
  • Löschdämpfung: >65 dB
  • Pre-magnetization and erasure frequency: 114 kHz
  • Amplifier: 2 x 20 W sine wave


Special Features

  • Automatic Reverse: Recording and playback in both running directions with automatic switching at the end of the tape (can be switched off).
  • Automatic search: fast search with automatic stop at preselected tape position as well as automatic tape end switch-off
  • Built-in time switch clock
  • Electronic jog keys for drive control
  • Connection possibility for remote control N 6719 for all drive functions
  • Built-in tape guide rail
  • Elegant flat track controls
  • Can be used as Hifi amplifier
  • Pre- rear band control
  • Echo, reverberation, multiplay
  • Switchable filters Noise, Rumble, Physiology
  • Variable rewind speed
  • Electronic tape tension control
  • Two microphone inputs
  • Built-in mixer
  • Horizontal and vertical operation


Notes[edit]


Pictures[edit]

  • Extract from brochure: Philips N-4450

Philips N-4450-Prospekt-2.jpg


  • Extract from brochure: Philips N-4450

Philips N-4450-Prospekt-3.jpg


Reports[edit]

Links[edit]

  • Philips N4450 special brochure on "Hifi Archive": [1]</0,5>