Blaupunkt PX-70

Data

General

• Manufacturer: Blaupunkt
• Model: PX-70 (OEM: Nikko Beta 30)
• Model range: Artech Line
• Type: Preamplifier
• Years of manufacture: 1986 - 1988
• Manufactured in:
• Color: Polar Grey
• Remote control: No
• Power consumption: 10 W
• Dimensions: 437 x 81 x 280 mm (WxHxD)
• Weight: 2 kg
• Original price approx.: 599 DM

Connections

• Number of inputs:
  • Phono MM/MC switchable 2.5 mV/47 kOhm or 0.25 mV/100 Ohm.

CD, Tuner, Aux, 2x Tape 150mV/47 kOhm

• Number of outputs:
  • Headphones 400 mV/40 Ohm
  • Pre-Out 1000 mV/560 Ohm
  • 2x Rec-Out

Technical Data

• Frequency response: 20 - 20,000 Hz +0.5 dB/-1 dB
• Distortion factor: 0,006%
• Signal-to-noise ratio:
  • MC: 75 dB
  • MM: 83 dB

High level: 100 dB

• Stereo channel separation: 60 dB
• Tone control
  • Bass: 70 Hz +7 dB/-9 dB

Treble: 10,000 Hz +7 dB/-9 dB

• Loudness: No
• High Filter: No
• Low Filter (Subsonic): 15 Hz, 12 dB/oct., switchable
• Mute: Yes
• Direct/Line-Straight: No

Special Features

• Mono switch
• Tape dubbing in both directions independent of the heard source

Remarks

• Other models in the same series:
• Preamplifier:
• Blaupunkt PX-70

• Power amplifier:
• Blaupunkt MX-70

• Integrated amplifier:
• Blaupunkt MA-5650
• Blaupunkt MA-5750
• Blaupunkt MA-5850

• Tuner
• Blaupunkt PT-3650
• Blaupunkt PT-3750

• CD player:
• Blaupunkt CP-2650
• Blaupunkt CP-2850
• Blaupunkt CP-2950

• Tape Deck
• Blaupunkt DC-1750
• Blaupunkt SC-1650
• Blaupunkt SC-1850
• Blaupunkt RC-1950

• Record Player
• Blaupunkt AP-6750

• Speakers:
• Blaupunkt L-105
• Blaupunkt L-107
• Blaupunkt L-110
• Blaupunkt L-200

Pictures

• Extract from brochure: Blaupunkt Artech Line

Reports

• A common defect of these units is the sound source switch, which no longer engages. Playback is only possible as long as the respective button is pressed.