Difference between revisions of "JVC QL-A7"
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| − | == | + | == Data == |
| − | '''''JVC | + | '''''JVC Stereo Record Player QL-A7''''' |
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| − | ''' | + | '''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: |
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| − | ''' | + | '''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 | ||
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| − | + | '''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 == | ||
| + | [[image:JVC_QL_A7.jpg|description]] | ||
| + | |||
| + | == Remarks == | ||
| + | |||
| + | == Reports == | ||
== Links == | == Links == | ||
| − | [[ | + | [[Category:Turntables]] |
Latest revision as of 16:33, 11 September 2014
Data[edit]
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[edit]
