ASC AS 4504 specifications

General

Connections

Tech nical data

Special equipment

Number of inputs:
- Radio (DIN): 1 mV/kOhm / 4.7 kOhm
- Reserve (DIN): 100 mV / 1 mOhm
- 2x Microphone: 0.1mV / 1.2 kOhm
- Slide control:
- Projector:
Number of outputs:
- Radio (DIN): 1.3V / 500 ohm
- Monitor (DIN): 1.3V / 500 ohm
- Headphones: 5 - 2'000 ohm

Max. Coil diameter: 18 cm
drive: 3 engines
heads: 3
tracks: 4
belt speeds: 19 / 9,5 / 4,75 cm/s
slip:
flutter:
Pitch changes:
- 4.75 cm/s: < 0,2%
- 9.5 cm/s: < 0,12%
- 19 cm/s: < 0,06%
total frequency response:
- 4.75 cm/s: 20 - 12'000 Hz
- 9.5 cm/s: 20 - 16 000 Hz
- 19 cm/s: 20 - 23'000 Hz
quiet noise ratio:
- 4.75 cm/s: 52 dB
- 9.5 cm/s: 61 dB
- 19 cm/s: 62 dB
s / n ratio:
- 4.75 cm/s: 46 dB
- 9.5 cm/s: 52 dB
- 19 cm/s: 52 dB
total harmonic distortion:
- 9.5 cm/s: 0,8 %
- 19 cm/s: 0,6 %
equalization:
- 4.75 cm/s: 120µs + 3180µs
- 9.5 cm/s: 90µs + 3180µs
- 19 cm/s: 50µs + 3180µs
Crosstalk: 50 dB (Stereo, 1 kHz)
- Mono at 1,000 Hz: - 70 dB; 500 Hz and 6,300 Hz: - 55 dB
- Stereo at 1,000 Hz: 48 dB; 500 Hz and 6,300 Hz: - 43 dB
fire-Extinguishing loss: > 70 dB at all speeds
premagnetization and deletion frequency: 130 kHz

photo-electronic tension control
Belt idler
Electronically controlled
peak value display
pulse tip of the buttons
Front brake and rear band control
Multiplay, Echo
accessories and optional building blocks
- acrylic glass lid with a carrying handle