Technics SA-424

Data

General

• Manufacturer: Technics
• Model: SA-424 / SA-424K
• Type: Receiver
• Years of manufacture: 1981 - 1983
• Made in: Japan
• Colors: Silver (SA-424), Brown (SA-424K)
• Remote control: no
• Power consumption: 420 W max.
• Dimensions(WxHxD): 430 x 120 x 350 mm
• Weight: 7,7 kg
• Original price approx.: 1'200 DM

Connections:

• Number of inputs:
  • Phono: 2.5 mV / 47 kOhm

Aux: 150 mV / 22 kOhm

• • Tape 1: 180 mV / 25 kOhm
  • Tape 2: 150 mV / 22 kOhm
  • Antenna FM (75/300 Ohm), AM
• Number of outputs:
  • Tape 1: 150 mV

Tape 2: 30 mV

• • Headphones (6.3 mm jack, front)
  • 2 pairs of loudspeakers

Technical Data

Amplifier

• Continuous power (1 kHz / 20 - 20'000 Hz)

8 Ohm: 2x 48 W / 2x 45 W 4 Ohm: 2x 55 W / 2x 50 W

• Dynamic power
  • 8 Ohm:
  • 4 Ohm:
• Total harmonic distortion: 0.007 % (8 Ohm, nominal power, 20 - 20'000 Hz)
• Attenuation factor:
• Frequency response:
  • Phono: RIAA ± 0.2 dB
• Aux: 20 - 20'000 Hz (±0,5 dB)
• Signal-to-noise ratio: (IHF-A)
  • Phono: 74 dB
  • Aux: 88 dB
• Tone control:
  • Bass: 50 Hz, ±10 dB

Treble: 10 kHz, ±10 dB Loudness: yes High Filter: yes

• • Low Filter (Subsonic): yes
• Mute: FM Muting

Tuner

• Reception: FM/MW
• Frequencies:
  • FM: 87.5 - 108 MHz
  • MW: 522 - 1611 KHz
• Input sensitivity:
  • FM: 1.3 µV (75 Ohm)
  • MW: 30 µV (20 dB S/R)
• Frequency response:
  • FM: 20 - 15,000 Hz (+1/-2 dB).

Distortion factor:

• • FM: 0.2% (stereo)
• Signal-to-noise ratio:
  • FM mono: 75 dB

FM stereo: 70 dB

• Channel separation:
  • FM: 45 dB, 1 kHz
• Selectivity:
  • FM: 75 dB
  • MW: 55 dB
• Equal wave selection:
  • FM: 1.2 dB
• Spurious wave selection: 82 dB
• Image frequency attenuation:
  • FM: 75 dB

MW: 40 dB

• IF attenuation:
  • FM: 75 dB
  • MW: 45 dB
• AM suppression: 55 dB
• Station memory: 2 x 7

Special Features

• Analogue frequency indicator and digital frequency display

Remarks

• Other models in the same series:
• Preamplifier:
• Technics SU-A 4
• Technics SU-A 6
• Technics SU-A 8

• Preamplifier
• Technics SE-A 3
• Technics SE-A 5
• Technics SE-A 7

• Integrated Amplifier
• Technics SU-V3
• Technics SU-V5
• Technics SU-V7
• Technics SU-V9
• Technics SU-Z25
• Technics SU-Z45
• Technics SU-Z65

• Tuner
• Technics ST-S 4 L
• Technics ST-S 6
• Technics ST-S 8
• Technics ST-Z 25
• Technics ST-Z 45

• [[Receiver:
• Technics SA-212
• Technics SA-222
• Technics SA-313
• Technics SA-424
• Technics SA-626
• Technics SA-828

• Casseiver
• Technics SA-R 40

• Tape Deck:
• Technics RS-M 205
• Technics RS-M 216
• Technics RS-M 222
• Technics RS-M 226
• Technics RS-M 228 X
• Technics RS-M 255 X
• Technics RS-M 258 R
• Technics RS-M 273
• Technics RS-M 275 X
• Technics RS-M 280

• PCM recorders:
• Technics SV-P 100

• Record player:
• Technics SL-5
• Technics SL-7
• Technics SL-10
• Technics SL-15
• Technics SL-B 31
• Technics SL-B 303
• Technics SL-D 30
• Technics SL-DL 1
• Technics SL-DL 5
• Technics SL-Q 30
• Technics SL-QL 1
• Technics SL-1000 MK 3
• Technics SL-1200MK2

• Equalizer
• Technics SH-8000
• Technics SH-8015
• Technics SH-8025
• Technics SH-8045
• Technics SH-8065

• [[Timer:
• Technics SH-4020
• Technics SH-4060

• Speakers:
• Technics SB-2
• Technics SB-3
• Technics SB-4
• Technics SB-5
• Technics SB-6
• Technics SB-7
• Technics SB-10
• Technics SB-3020
• Technics SB-3030
• Technics SB-3050
• Technics SB-3130
• Technics SB-3150
• Technics SB-F 1
• Technics SB-F 2
• Technics SB-F 3
• Technics SB-M 1

Pictures

• Extract from brochure: Technics SA-222, SA-424

• Excerpt from US review: Technics SA-424