Electro-Servo Fully Automatic Quartz Turntable
The Flagship of JVC's Fine Line of Turntable
Features
E-D Servo tonearm for reduced resonance
Double-Servo Quartz control
Cog-free coreless DC servo motor
Electronic resonance-damping, tracking-force and anti-skate controls
Computerized fully automatic convenience with repeat
The design objectives for our top-of-the-line turntable were simple; eliminate all unwanted resonance, speed error, noise and vibration while offering fingertip computer control convenience. The superlative QL-Y5F attests to our success, and we were able to make it beautiful to boot Read on.
JVC E-D Servo tonearm
A genuine breakthrough
JVC engineers isolated "tonearm resonance" as the most inimical of all conceivable resonance in a turntable, since it colors reproduction, adds distortion (particularly intermodulation) and prevents accurate arm tracking. JVC's E-D Servo tonearm solves the problem of "sympathetic resonance". See the full description of this remarkable tonearm on the next page.
The E-D Servo tonearm - construction
Two coreless linear motors are used in the E-D Servo tonearm. One, housed inside the structure positioned to the right of the vertical bearing, controls and adjust the arm's vertical position in relation with the record's surface. The other, positioned below the tonearm base, controls and adjust the arm's horizontal position in relation to the record groove.
Even warped records are no challenge to the E-D Servo tonearm
The E-D Servo system successfully damped the tonearm to shut out audible damage caused by low-frequency infrasonic and external vibration. The result is better record tracking, lower distortion a higher signal-to-noise ratio and even better Wow and Flutter.
Our Improved Double-Servo Quartz system has made speed control 30 times more accurate
Speed accuracy is nearly flawless thanks to the Double-Servo Quartz speed detection system for the platter motor
Coreless DC servo motor is cog-free yet powerful
Our coreless DC servo motor has no cores for cog-free, smooth rotation, yet has 50% more torque than conventional coreless designs, thanks to a push-pull drive circuit.
Up-front, light-touch controls and fully automatic operation for a unique operating experience
All the controls for this JVC masterpiece are on the front panel. All arm movements - up, down, left and right - are possible in the manual mode via light-touch buttons. Full automatic operation is supervised by a microcomputer and initiated by the Start/Stop button.
Other features:
Repeat for infinite playback of one record
Solid one-piece headshell doesn't rattle or resonate
Height adjustable tonearm arrangement (±3 mm)
LED indicators for speed, quartz-lock, record size, repeat and arm cue
Rosewood veneer cabinet, polished to a rich mirror finish.
Specifications
Type: Coreless DC servo motor
Drive System: Direct-drive
Speed Detection System: Integrated FG
Servo System: Double-servo Quartz system
Speed Change: Electronic Switching
Start-up Time: 1,2 sec.
Wow and Flutter: 0,025% (WRMS); 0,04% (DIN)
Signal-to-Noise Ratio: 78 dB (DIN-B)
Start-up Torque: 1000 g/cm
Speed Deviation: 0,002%
Load Characteristics: 0% (under 100 g loads)
Drift: 0,0001%/H
Voltage Drift: 0%
Thermal Drift: 0,00005%/°C
Platter
Size: 310 mm die0cast aluminum
Weight(with mat): 1,5 kg
Tonearm
Type: Statically balanced electronic servo controlled arm
Effective Length: 245 mm
Tracking Error: +1°48". -1°31"
Overhang: 15 mm
Applicable Cartridge Weight (headshell included): 14,5 - 24 g
Arm Elevation Range: ±3 mm
Operation Mode: Fully-automatic
General
Dimensions (H x W x D): 169 x 480 x 436 mm (6-5/8" x 18-7/8" x 17-3/16")
Weight: 10,5 kg (23,1 lbs)
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