Quartz Fully Automatic turntable
JVC's Core-Less Direct-Drive Motor
JVC Super Servo Frequency Generator
The best of both turntable worlds - platter rotational accuracy and full automatic operational ease - are included in the QL-F4. the combined use of our coreless motor plus the direct-drive mechanism and our renowned JVC Quartz technology is the secret behind the performance of the QL-F4 and its low wow and flutter of 0,025% (WRMS). We believe in this price range on the market that offers so much full automatic convenience as does the QL-F4
JVC Quartz for Accuracy
The QL-F4 featured the JVC Quartz servosystem which incorporates a precision Quartz oscillator JVC Super Servo Frequency Generator and responsive servo circuit, its major highlight is the JVC core-less direct0drive motor, this doesn't "cog" and thus assures absolutely smooth and accurate revolution, and leads to low wow/flutter of 0,025% (WRMS). This plus the use of simplified circuits for greater dependability, works together to give you JVC's Musical Truth.
Fully Automatic Mechanism
The Ql-F4 offers the convenience of fully automatic operation. Among its unusually versatile functions are;
Auto Repeat offering from 1 to 6 plays at the twist of a rotary control, with the "R" setting offering infinite replays.
Auto Lead-in, which raises the tonearm, moves it over the edge of the record, and gently lowers it to the lead-in-groove to start playing
Auto-Return which sets the tonearm automatically to its rest when a play is completed then shuts the power off. As a bonus the moment you move the tonearm manually, the QL-F4 can be operated as if originally designed for manual operation.
New Gimbal Support and More
Included in the Ql-F4 are, New Gimbal Support, One-Row Strobe, Oil-Damped Cueing, the knob-type Anti-Skate control, low-resonance cabinet, etc.
Specifications
Drive System: Direct drive
Motor: Coreless DC type, Quartz Locked FG servomotor
Speeds: 33-⅓ and 45 rpm
Wow and Flutter: less than 0,025% (WRMS)
Signal-to-Noise Ratio : more than 62 dB (IEC-B); 72 dB (DIN-B)
Speed Detections: Integrated frequency generator
Starting Torque: more than 650 g-cm
Speed Deviation: within 0,004%
Load Characteristics: 0% (with 100 g total tracking force)
Drift per Hour: 0,0001% /h
Power Characteristics: 0% (±10 V)
Temperature Characteristics: 0,00005% /°C
Platter: 312 mm diameter
Tonearm Type: Tracking-Hold system, S-shaped tubular arm
Effective Length: 220 mm
Tracking Error: +3°35' - 0°43'
Overhang: 15 mm
Tracking Force Range: 0 - 3g (0,25 g division, direct reading)
Weight Range (incl. Headshell): 14,5 - 22 g (10 g headshell)
Cartridge Type: Moving magnet (cartridge body MD-1025)
Stylus: 0,5 mil. Diamond (DT-Z1S)
Optimum Tracking Force: 2 gramm
Output: 3 mV (1 kHz)
Frequency Response: 10 - 25,000 Hz
Separation: more than 25 dB (1 kHz) with test record TRS-1
Load Resistance: 47 k Ω - 100 k Ω
Compliance
Dynamic : 10 x 10¯⁶ cm/dyne
Static : 30 x 10¯⁶ cm/dyne
General Specifications
Power Requirements: AC 110, 120, 220, 240 V 50/60 Hz
Power Consumption: 9 watts
Dimensions (W x H x D): 460 x 147 x 365 mm (with cover closed)
Weight: 6,5 kg (14,3 lbs)
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