Pioneer SX-727

Data

General

• Manufacturer: Pioneer
• Model: SX-727
• Type: Receiver
• Years of manufacture: 1972 - 1974
• Made in: Japan
• Color: front silver, wooden cabinet
• Remote control: no
• Power consumption: 270 W
• Dimensions: 485 x 150 x 390 (WxHxD)
• Weight: 14 kg
• Original price approx.: 1'685 DM

Connections

• Number of inputs:
  • Phono MM 1, 2: 3 mV, 50 kOhm
  • Microphone (6.3mm jack): 2.7 mV, 50 kOhm
  • Aux: 200 mV, 100 kOhm
  • Tape 1, 2 Play: 200 mV, 100 kOhm

Tape Play (DIN): 200 mV, 100 kOhm Main In: 500 mV, 50 kOhm

• • Antenna (FM: 75, 300 Ohm, MW: 300 Ohm).
• Number of outputs:
  • Tape Rec 1, 2: 200 mV

Tape (DIN): 35 mV Pre Out: 500 mV, 4 V max.

• • Headphones (6.3mm jack)
  • 3 pairs of speakers

Technical Data

Amplifier

• Continuous power (at distortion):
  • 8 Ohm: 2x 40 W

4 Ohm: 2x 50 W

• dynamic power:
  • 8 Ohm: 122 W
  • 4 Ohm: 195 W
• Total harmonic distortion: < 0.5%
• Attenuation factor: 40 (8 Ohm, 1 kHz)
• Frequency response:
  • Phono, RIAA: 20 - 20'000 Hz

High level: 7 - 80'000 Hz, ± 1 dB Signal-to-noise ratio:

• • Phono, RIAA: 85 dB
  • High level: 95 dB
• Tone control:
  • Bass: ± 10 dB at 100 Hz

Treble: ± 10 dB at 10 kHz

• Loudness: + 10 dB at 100 Hz, +6 dB at 10 kHz
• Subsonic: - 8 dB at 50 Hz, - 6 dB / octave
• High Filter: - 9 dB at 10 kHz, - 6 dB / octave

Mute: - 20 dB

Tuner

• Reception: FM, MW
• Frequencies:
  • FM: 88 - 108 MHz
  • MW: 525 - 1605 kHz
• Input sensitivity:
  • FM: 1.8µV

MW: 10µV

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

Distortion factor:

• • Mono: < 0.3 %

Stereo: < 0.5

• Signal-to-noise ratio: 70 dB
• Channel separation: 40 dB (1 kHz)
• selectivity: > 70 dB
• Co-wave selection: 2.0 dB
• Spurious wave selection: 85 dB
• Image frequency attenuation: 85 dB
• IF attenuation: > 100 dB
• AM suppression: 50 dB

Special Features

• Pre- and power amplifier can be separated (Main In/Pre Out)

Remarks

• Other models in the same series:
• Amplifier:
• Pioneer SA-500 A
• Pioneer SA-6200
• Pioneer SA-7100
• Pioneer SA-8100
• Pioneer SA-9100

• [[Tuner:
• Pioneer TX-500 A
• Pioneer TX-6200
• Pioneer TX-7100
• Pioneer TX-8100
• Pioneer TX-9100

• [[Receiver:
• Pioneer SX-424
• Pioneer SX-525
• Pioneer SX-626
• Pioneer SX-727
• Pioneer SX-828
• Pioneer SX-2500

• Tape Decks:
• Pioneer CT-3131
• Pioneer CT-4141
• Pioneer CT-5151

• Coil Devices
• Pioneer RT-71
• Pioneer RT-1020

• Turntables:
• Pioneer PL-12 D
• Pioneer PL-15 D
• Pioneer PL-A 45
• Pioneer PL-51
• Pioneer PL-61
• Pioneer PL-C 1700

Pictures

• Image: Pioneer SX-727

• Excerpt from brochure: Pioneer SX-727