Specyfikacja magnetofonu szpulowego Philips N4520:
Track system: 4-track, 2-channel, stereo system
Heads: 1 x playback, 1 x record, 1 x erase
Motor: 2 x reel, 1 x capstan
Reel size: up to 10.5 inch reel
Equalization: NAB, IEC
Tape speeds: 3 3⁄4 7 1⁄2 15 ips
Frequency response: 30Hz to 26kHz (15 ips)
Signal to Noise Ratio: 64dB
Total harmonic distortion: 1%
Input: 100mV (line), 0.2mV (mic)
Output: 1V (line)
Wymiary: 531 x 527 x 230mm
Waga: 25kg