Pioneer LX-424

Data

General

• Manufacturer: Pioneer
• Model: LX-424

Type: Receiver

• Years of manufacture: 1972 - 1974
• Made in: Japan
• Color: front silver, wooden cabinet
• Remote control: no
• Power consumption: 90 W max.
• Dimensions: 431 x 146 x 347 mm (WxHxD)
• Weight: 8.5 kg
• Original price approx.: 880 DM

Connections

• Number of inputs:
  • Phono MM: 2,5 mV / 50 kOhm
  • Microphone (6.3mm jack): 6.5 mV / 50 kOhm
  • Aux: 150 mV, 100 kOhm
  • Tape Play: 150 mV / 100 kOhm

Tape Play (DIN): 150 mV / 100 kOhm

• • Antenna (FM: 75, 300 Ohm, MW: 300 Ohm).
• Number of outputs:
  • Tape Rec: 150 mV

Tape (DIN): 36 mV

• • Headphones (6,3mm jack)
  • 2 pairs of loudspeakers

Technical Data

Amplifier

• Continuous power (at distortion):
  • 8 Ohm: 2x 12 W

4 Ohm: 2x 13 W

• Dynamic power:
  • 8 Ohm: 37 W
  • 4 Ohm: 50 W
• Total harmonic distortion: < 1
• Attenuation factor: 40 (8 Ohm, 1 kHz)
• Frequency response:
  • Phono, RIAA: 20 - 20'000 Hz
  • High level: 20 - 60'000 Hz, ± 1 dB

Signal-to-noise ratio:

• • Phono, RIAA: 75 dB
  • High level: 85 dB
• Tone control:
  • Bass: ± 9 dB at 100 Hz
  • Treble: + 6 dB, - 9 dB at 10 kHz
• Loudness: + 9.5 dB at 100 Hz, + 5.5 dB at 10 kHz
• Subsonic:
• High Filter:
• Mute:

Tuner

• Reception: FM, MW, LW
• Frequencies:
  • FM: 88 - 108 MHz

MW: 525 - 1605 kHz LW: 150 - 350 kHz

• Input sensitivity:
  • FM: 1.9µV
  • MW: 15µV

LW: 45µV

• All other specifications for VHF
• Frequency response: 20 - 15'000 Hz, + 0 dB, - 1 dB

Distortion factor:

• • FM: < 0.4% (mono), < 0.5% (stereo)
• Signal-to-noise ratio: 70 dB (FM), > 50 dB (AM)
• Channel separation: > 40 dB (1 kHz)
• Selectivity:
  • FM: > 60 dB

AM: > 30 dB

• Common mode selection: 1.5 dB
• spurious attenuation: > 90 dB (98 MHz)
• Image frequency attenuation:
  • FM: > 60 dB (98 MHz)
  • AM: > 80 dB (1,000 kHz)
• IF attenuation:
  • FM: > 90 dB (90 MHz)
  • AM: > 70 dB
• AM suppression: 50 dB

Special Features

• Pre- and power amplifier separable (Main In/Pre Out)

Remarks

• Other models of the same series:
• Receivers with long wave:
• Pioneer LX-424
• Pioneer LX-626

• Receivers without longwave:
• Pioneer SX-424
• Pioneer SX-525
• Pioneer SX-626
• Pioneer SX-727
• Pioneer SX-828
• Pioneer SX-2500

Pictures

• Extract from brochure: Pioneer LX-424, LX-626