Fully-Automatic
Quartz Turntable
Features
Coreless DC
Motor with Quartz Servosystem
JVC Super
Servo Frequency Generator
Variable
"Q" Oil-Damped Tonearm
Fully-Automatic
Arm Operation with Memory Repeat
Front
Operation Convenience
The JVC
QL-F6 is full of new and useful features. Namely, for higher speed accuracy,
we've added another speed-correction system to the renowed JVC Quartz
servosystem. For higher tracking accuracy, we've added a new oil damping system
to our New Gimbal Support. And for low acoustic feedback, we've used a bottom
board made of newly-developed H.D.P. compoud - heavier and more solid than
conventional plastics - in combination with a solid aluminum die-cast cabinet.
Further improvements are made even in the smallest of parts. What improvements
do they offer your ears? Here the QL-F6 at your nearest dealer - your ears will
know the answers.
Variable
"Q" Oil-Damped Tonearm.
The tonearm
of the QL-F6 is on JVC's New Gimbal type support, known for low friction and
high sensitivity. But JVC has made its performance even better by adding to it
our new variable "Q" oil damping system. Advantages are:
1) Damped
"Q" (low-frequency resonance) results in better tracking
2) Sensitivity
is high, with the support critically controlled
3) The user
never needs to replace or replenish oil
4) Resistance
to acoustic feedback is higher
5) The
"Q" can be adjusted by a pair of controls - one for horizontal and
one for vertical - to match the cartridge's compliance.
JVC'scomputer-asisted
"K&K Method" was the creative force behind this innovative
development.
JVC's New
Double-Quartz Servosystem
In addition
to the conventional JVC Quartz servo- the one that incorporates a phase
comparator - there's another Quartz servosystem inside the QL-F6; the F-V
converter makes the use of reference Quartz crystal rather than a more
conventional reference voltage generator. Thus the rock-steady platter speed is
made still more accurate. You cannot find another turntable offering steadier
and more reliable speed control.
JVC's
coreless motor is accurately controlled by these two dependable servos to
rotate the platter with unimpeachable constancy. Besides, it vibrates very
little and generates high torque (1,2 kg/cm) for a coreless motor, thanks to
the newly-developed push-pull drive circuit. Finally, the JVC Super Servo FG
(Frequency Generator) is built inside the motor to detect any speed error and
help keep the platter spinnung accurate, always.
Specifications
Motor
Section
Motor: Coreless, DC type, FG servomotor
Servo
System: Phase-locking to the quartz
oscillator
Drive
System: Direct drive
Speeds: 33-⅓ and 45 rpm
Fine Pitch
Adjustable Range: +_6%
Wow and
Flutter: 0,025% (WRMS)
Signal-to-Noise
Ratio: more than 78 dB (DIN-B)
Speed
Detection: Frequency generator
Starting
Torque: more than 1,2 kg-cm
Speed
Deviation: within 0,002%
Load
Characteristic: 0% (with 170g total
tracking force)
Drift: 0,0001 %/H
Power
Characteristics: 0% (±10 V)
Temperature
Characteristics: 0,00005 %/C
Platter: 32,7 cm
Tonearm
Section
Type: Statically-balanced oil-damped tonearm
Effective
Arm Length: 233 mm
Overhang: 15 mm
Weight Range
Including Headshell: 13 - 20 g
Cartridge
Section
Type: Moving magnet (MD-1025EB)
Frequency
Response: 10 Hz - 25,000 Hz
Output 3 mV
(1 kHz)
Channel
Separation: 25 dB (1 kHz) load
Resistance: 47 - 100 k Ω
Compliance:
Dynamic
: 10 x 10¯⁶
cm/dyne
Static
: 30 x 10¯⁶
cm/dyne
Stylus: Dt-ZIEB, 0,3 x 0,7 mil (diamond, elliptical)
Optimum
Tracking Force: 1,75 g ±0,25 g
General
Power
Supply
: AC 110/ 120/ 220/ 240 V, 50/60 Hz
Consumption
: 15 watts
Dimensions
(W x H x D): 456 x 142 x 400 mm
Weight: 11 kg
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