ASC AS 4504
Data[edit]
General
- Manufacturer: ASC
- Model: AS 4504
- Type: Coil tape
- Years of manufacture: 1977 - 1979
- Made in: Germany
- Color: Black
- Remote control: Connection for cable remote control
- Power consumption: 90 Watt
- Dimensions (WxHxD): 430 x 155 x 345 mm
- Weight: 18 kg
- Original price approx.: 1'500 DM (1979)
Connections
- Number of inputs:
- Radio (DIN): 1 mV / kOhm / 4.7 kOhm.
- Reserve (DIN): 100 mV / 1 MOhm
- 2x microphone: 0.1 mV / 1.2 kOhm
- Slide control:
- Projector:
- Number of outputs:
- Radio (DIN): 1.3 V / 500 Ohm
- Monitor (DIN): 1.3 V / 500 Ohm
- Headphones: 5 - 2'000 Ohm
Technical data
- Max. coil diameter: 18 cm
- Drive: 3 motors
- Heads: 3
- Tracks: 4
- Tape speeds: 19 / 9.5 / 4.75 cm/s
- Slip:
- Speed variations:
- Pitch fluctuations:
- 4.75 cm/s: < 0.2%
- 9.5 cm/s: < 0.12%
- 19 cm/s: < 0.06%
- Overall 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
- Quiescent noise voltage range:
- 4.75 cm/s: 52 dB
- 9.5 cm/s: 61 dB
- 19 cm/s: 62 dB
- Extraneous voltage spacing:
- 4.75 cm/s: 46 dB
- 9.5 cm/s: 52 dB
19 cm/s: 52 dB
- Distortion factor:
- 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 attenuation: 50 dB (stereo, 1 kHz)
- Mono at 1,000 Hz: - 70 dB; between 500 Hz and 6,300 Hz: - 55 dB
- Stereo at 1,000 Hz: - 48 dB; between 500 Hz and 6,300 Hz: - 43 dB
- Cancellation attenuation: > 70 dB at all speeds
- Premagnetization and cancellation frequency: 130 kHz
Special equipment
- Photoelectronic tape tension control
- Tape calming roller
- Electronically controlled brakes
- Peak value display
- Pulse touch keys
- Front and rear tape control
- Multiplay, echo
- Accessories and special modules
- Acrylic glass lid with carrying handle
Remarks[edit]
- Other models in the same series:
- ASC AS 4502
- ASC AS 4504
Pictures[edit]
- Image: ASC AS 5004 (optics same as AS 4504)
Reports[edit]
- Detailed reports at "ASC Hifi devices": [[1]]