JVC QL-A7

Data

JVC Stereo Record Player QL-A7

General:

• Manufacturer: JVC (Japan)

TYPE: Quartz-controlled turntable with direct drive (semi-automatic)

• Size with closed hood (HxWxD): 16.5 x 48.1 x 40.3 cm
• Power: 220 V, 50 Hz, 19 Watt (Europe)
• Weight: 12 Kg
• New price:

Technical data:

• Motor: 12- pole- 24- slot- DC- servo motor
• Drive system: Direct drive
• Speeds: 2, ( 33,33 and 45 rpm )
• Synchronous fluctuation: 0,025 % (WRMS)
• Interference voltage ratio: 63 dB (IEC-B)
• Rumble voltage: 73 dB (DIN B)
• Speed detector: Frequency generator
• Starting torque: 1 kg - cm
• Starting time: less than 1.4 s
• Quick stop: under 1,6 s
• Speed deviation: 0,002 % * Drift per hour: 0,003 %.
• Drift per hour: 0,0001 % /h
• turntable: 31,3 cm

Tonearm:

• Type: TH- Tonearm (Tracing-Hold-System)
• Effective length: 245 mm
• Overhang: 15 mm
• Contact pressure range: 0 - 3 g
• Permissible cartridge weight with system: 14.5 - 25.5 g (system carrier 10 g)
• Height range: 42.4 - 50.0 mm

Pickup system:

• Type: Vibrating magnet (MD-1025)
• Scanning needle: 0.3 x 0.7 mm diamond for DT-Z1 TE
• DT-Z1 TE for stereo
• 4DT-Z1S for discrete 4-channel/stereo playback
• Optimal tracking force: 1.5 - 2.0 g
• Output: 3 mV (1 khz)
• Frequency response:
  • DT-Z1 TE: 10 - 25,000 Hz
  • 4DT-Z1 S: 10 - 45,000 Hz
• Channel separation: better than 25 dB (1 khz)

Special features:

• Single-Puck: yes
• Anti-skating button: yes
• Tonearm statically balanced with new gimbal suspension,
• Photokinetic automatic limit stop,
• Sensor buttons for speed selection and quick stop,
• Cardan suspension with TH tonearm balance,
• Aluminum tonearm carriage with quick-release lock,
• Tonearm height adjustment,
• parallel-guided, oil-damped tonearm lift,
• driven by high quality quartz servo motor,
• speed control by illuminated quartz frequency synchronized stoposcope display,
• almost only wear-free electronics were used,

Pictures