Sony PS-333 turntable

Sony Direct-Drive Turntable

Full automatic direct-drive turntable with a BSL motor

Magnedisc servo system for accurate speed sensing

Controls can be operated with the dust cover closed

Universal static balance type tonearm with bias adjustment

Illuminated stroboscope to check turntable speed.

Cartridge supplied

 

Specifications

Turntable Section

Type:  Fully automatic

Speeds:  33-⅓ and 45 rpm

Motor:  Linear BSL motor

Speed Control Range:  ±6%

Wow and Flutter:  0,03% WRMS, ±0,045 DIN

Signal-to-Noise Ratio:  70 dB DIN

Tonearm Section

Type:  Static balance

Overall Arm Length:  216,5 mm

Stylus Force adj. Range:  0 - 3 g

Shell Weight:  7,5 g

Cartridge Weight Range:  4,5 - 11 g

Cartridge Section

Type:  VL 37G

Channel Separation:  better than 23 dB at 1 kHz

 output Voltage:  3,5 mV at 1 kHz

Tracking Weight:  2 - 3 g

Stylus:  ND 137G

General

Power Requirements:  AC 240 V, 50 Hz

Power Consumption:  6 watts

Dimension (W x H x D):  430 x 125 x 365 mm

Weight:  5,3 kg

 

Sony PS-212A turntable

Sony Direct-Drive turntable

Semi-automatic direct-drive turntable with a BSL motor

Magnedisc servo system for accurate speed sensing

Controls can be operated with the dust cover closed

Illuminated stroboscope to check turntable speed.

Pitch control

Cartridge supplied

Specifications

Turntable Section

Type:  Semi-automatic

Speeds:  33-⅓ and 45 rpm

Motor:  Linear BSL motor

Speed Control Range:  ±3%

Wow and Flutter:  0,03% WRMS, ±0,045 DIN

Signal-to-Noise Ratio:  70 dB DIN

Tonearm Section

Type:  Static balance

Overall Arm Length:  300 mm

Stylus Force adj. Range:  0 - 3 g

Shell Weight:  13 g (with cartridge)

Cartridge Weight Range:  4 - 12 g

Cartridge Section

Type:  VL 33G

Channel Separation:  better than 20 dB at 1 kHz

 output Voltage:  3,5 mV at 1 kHz

Tracking Weight:  2 - 3 g

Stylus:  ND 136G

General

Power Requirements:  AC 240 V, 50 Hz

Power Consumption:  6 watts

Dimension (W x H x D):  410 x 125 x 370 mm

Weight:  4,8 kg

 

JVC QL-10 turntable

 

The QL-10 Quartz Turntable is a distinguished state-of-the-art. Product and JVC is proud to place it at the top of our wide line. Like the finest precision measuring apparatus, it offers a digital speed counter of unimpeachable reliability. There is a1 Hz stop pitch control to answer the needs of professional users and musicans alike, along with precision performance as represented by the 0,02% wow and flutter (WRMS) and other outstanding specifications.

JVC Quartz and Pitch Control

Only JVC Quartz technology as offered in the QL-10 can offer the incontestably unique advantage of Pitch Control in steps of a miniscule 1 Hz over a ±6 Hz range in reference to the international standard pitch of a - 440 Hz.

While other makers offer their quartz turntables with pitch control facility, ours is just about the only system to maintain that accuracy by keeping the Quartz servo in operation.

 

Digital Speed Counter

This JVC Quartz model incorporates a 4-digit LED counter to indicate the speed of the platter within .01 rpm. The indication accuracy of this built-in precision digital measuring apparatus is entirely dependable.

 

Quick Start/Stop

The platter of the QL-10 reaches an exact 33-⅓ rpm speed in less than 0,6 sec. after you push the Start button. Stop time is under one second.

Other features of the Ql-10 include:

New Gimbal Support Tonearm (height-adjustable) in a multi-layered base, cil-damped cueing, an efficient, low-hum toroidal power transformer, electronic switching, "no-cogging" core-less DC motor, and more.

 

Specifications

Type:  Coreless DC servomotor

Drive System:  Direct-drive

Speeds:  33-⅓ and 45 rpm

Speed Detection System:  Integrated Frequency Generator

Servosystem:  Quartz Servosystem

Pitch Control Range:  ±6 Hz (Standard:440 Hz)

Speed Change:  Electric switching

Start-up Time:  less than 0,6 sec

Wow and Flutter:  less than 0,02% (WRMS); 0,04% (DIN)

Signal-to-Noise Ratio better than 75 dB (DIN-B); 65 dB (IEC-B)

Start-up Torque:  better than 1,8 kg-cm

Speed Deviation:  less than 0,002%

Load Characteristics:  0% (under 120 gram loads)

Drift (hour):  0,0004%/H

Voltage Drift (±10V):  0%

Thermal Drift:  0,00003%/°C

Quick-Stop Time:  less than 1,0 sec

Platter

Type:  316 mm aluminum die-cast

Tonearm

Type:  Statically-balanced arm with New Gimbal Support on TH (Tracing Hold) System

Effective Length:  245 mm

Tracking Error:  +1°48'  -1°31'

Overhang:  15 mm

Applicable Tracking Force:  0 - 3 grams (0,25 gram steps)

Applicable cartridge Weight:  12,0 - 32,0 grams

Arm Elevation Range:  40,0 - 60,0 mm

Operation Mode:  manual

Dimensions (W x H x D):  510 x 191 x 410 mm ( 20-5/64" x 7-3/4" x 16-9/64")

Weight:  19,5 kg (42,9 lbs)

 

JVC QL-8 turntable

Like the QL-10 the QL-8 from JVC is also a complete system combining a Quartz-Locked Turntable, model TT-81 in this case, with the CL-P1 Turntable Base and UA-7045 New Gimbal Support Tonearm, the latter two being custom-designed components available separately.

The QL-8 with its TT-81 Quartz-Locked Turntable section delivers the same functional features and advanced control accuracy as the more expensive model; it lacks only the digital speed indicator. Features include the JVC Quartz-Locked Servosystem, the Positive and Negative Servo-control, 1 Hz/440 Hz Pitch Control,  Quick Stop facility and more. Outstanding performance features such as highly accurate speed constancy, low wow and flutter, exceptionally high signal-to-noise ratio are all retained.

 

Quartz-Locked Turntable

Use of the Quartz-Locked Servosystem containing a precision quartz crystal oscillator lets JVC guarantee absolute pitch accuracy, with speed deviation of less than 0,025%. This is a major factor in your assurance of the Musical Truth from JVC

 

1 Hz Step Pitch Control

With the 440 Hz as the reference pitch, the TT-81 in the QL-8 can be adjusted higher or lower up to 6 Hz in 1 Hz steps. A button control is provided for this purpose. Unlike other Quartz-Locked servos, this one works even while the speed is being fine-adjusted, thus speed accuracy is always maintained.

Positive and negative Servo-control

The JVC servosystem works in both positive and negative directions, again unlike conventional systems. Any speed deviation is instantly rectified to the absolutely correct speed.

 

Quick Stop

When the Stop Button is pushed, an electronic brake produces a reverse current in the drive circuit that generates reverse motor torque to counteract the motor torque. The platter comes to a full stop within one second.

 

Integrated Frequency Generator

A second servo, consisting of a frequency generator for speed detection, is an integral part of the direct-drive motor in the QL-8. a disc rotor with 180 slits is coupled with a doughnut shaped magnet. Beneath this is mounted a stator coil for detection, printed on a round-shaped circuit board. Thus, when the motor is rotating, 180 pulses are generated with each revolution as signals to be compared instantly with the quartz-generated reference signal. The integrated frequency generator, by the way, is completely free from error regardless of loads on the platter.

 

Oscillator-Assisted Stroboscope

In place of the digital indicator in the QL-10, the QL-8 has a highly accurate strobe, illuminated by a neon lamp which flashes at a rate that is synchronized not with power-line frequency as in conventional strobes but instead with the accurate and always-stable quartz-derived reference frequency. Only one row of stroboscopic stripes is needed, and each stripe appears sharp and clean. There is never a doubt that the platter is turning at its correct speed.

 

Specifications

Type:  DC servomotor

Drive System:  Direct-drive

Speeds:  33-⅓ and 45 rpm

Speed Detection System:  Integrated Frequency Generator

Servosystem:  Quartz Servosystem

Pitch Control Range:  ±6 Hz (Standard:440 Hz)

Speed Change:  Electric switching

Start-up Time:  less than 1,0 sec

Wow and Flutter:  less than 0,025% (WRMS); 0,045% (DIN)

Signal-to-Noise Ratio better than 73 dB (DIN-B); 63 dB (IEC-B)

Start-up Torque:  better than 1,3 kg-cm

Speed Deviation:  less than 0,002%

Load Characteristics:  0% (under 100 gram loads)

Drift (hour):  0,0004%/H

Voltage Drift (±10V):  0%

Thermal Drift:  0,00003%/°C

Quick-Stop Time:  less than 1,0 sec

Platter

Type:  316 mm aluminum die-cast

Tonearm

Type:  Statically-balanced arm with New Gimbal Support on TH (Tracing Hold) System

Effective Length:  245 mm

Tracking Error:  +1°48'  -1°31'

Overhang:  15 mm

Applicable Tracking Force:  0 - 3 grams (0,25 gram steps)

Applicable cartridge Weight:  12,0 - 32,0 grams

Arm Elevation Range:  40,0 - 60,0 mm

Operation Mode:  manual

Dimensions (W x H x D):  510 x 191 x 410 mm ( 20-5/64" x 7-3/4" x 16-9/64")

Weight:  18,5 kg (40,7 lbs)

 

Sansui J33 loudspeakers

60 W Power Handling, 90 dB/W Efficiency and 45-20,000 Hz Frequency Range

There are speaker systems a hundred times the size of the Sansui J33 which can't offer nearly the sound quality. Power handling capacity is 60 watts, an advantage ordinary small speaker systems can't equal. Efficiency is an excellent 90 dB/W at one meter, meaning you can drive the J33 with a relatively low-powered amp or receiver without problems of lost dynamic during the loud passages. Then, to ensure that you get your music's worth when you play any true high fidelity source, the frequency range is a wide 45 to 20 kHz - strictly hi-fi , right systems - staggered from the center axis to the left and right respectively - are on the "outside" for ideal response in your listening area. The staggered arrangement of the speaker units within each system assures pinpoint stereo imaging.

 

Two-way Design and Mirror-Paired Units for Incomparable Stereo Imaging

Sansui packages the J33 in matched stereo pairs; we suggest you mount them so that the tweeter of the left and right systems - staggered from the center axis to the left and right respectively - are on the "outside" for ideal response in your listening, area.

The staggered arrangement of the speaker units within each system assures pinpoint stereo imaging.

 

Luxurious "Piano" Finish on a Compact Speaker System

The Sansui J33 is finished in a deep black luster much in the same way a fine piano is finished. First the surface on the high-density enclosure panels are filled, then two layers of special lacquer are applied, again sanded smooth. Three more coats of lacquer are applied,, again sanded with care, filled, then wax-buffed to a high shine. The entire process takes nine separate steps, and results in an enclosure surface so smooth and hard it can resist nicks and scratches to retain its beautiful luster over the years.

Precision Panel Joining Means Ideal Air-Suspension Performance

Here's one of the secrets of the realistic bass response in the j33 - air-tight enclosure cabinetry that acts as a "spring" to reinforce the rich resonance of the low frequency musical sound waves produced by the woofer. To enclosure solid joints, Sansui craftsmen use a "plain miter Joint" technique, angling the edges of the enclosure panels and fitting the corners with extreme precision.

Seamed-Sheet Cone Assures Deep Musical Bass in 21 cm Woofer

The uniformly distributed mass and even thickness of the cone materials offer ideal density without adding unnecessary weight. Shape, too is important here, for the woofer cone is not straight but curved - formed by seamed-sheet technique which discourages distortion of all kinds. Ideal internal loss contributes still more to rich bass response.

The cone is then suspended by a rolled surround for ideal compliance, retaining its mobility even at high-level driving. Response is smooth whatever the level because the magnetic circuit features a large-sized ferrite magbet forming an exceptionally strong magnetic flux along the specially-treated, low-mass voice coil. High power handling, unusually high efficiency for a compact and believable bass reproduction are the advantages.

One-Piece Soft-Dome Tweeter Spreads Crisp Highs

Soft-dome tweeters, such as that in the Sansui J33 are known for their ability to avoid "beaming". That is, their output is radiated evenly in an expanding arc pattern to reach every corner of your listening room. Our soft-dome diaphragm, formed of polyester fiber of ideal firmness and elasticity, is damped by a uniform coating of acrylic-based chemical agent to effectively control harmful resonance while assuring linear response to varying input levels.

The dome is formed with a rolled surround all in one piece. Tonal degradation, caused when domes and surrounds are separately manufactured and bonded together, is thus avoided. Heat and distortion, too, pose no problem. This is because we use a 13,000 gauss magnetic circuit, a light voice coil and a rigid voice coil bobbin.

 

Specifications

Speakers

Woofer:  210 mm (8-1/4") cone type

Tweeter ;  25,4 mm (1") dome type

Max. Input Power:  60 watts

Impedance:  6 Ω

Sensitivity:  90 dB /W (JIS at 1 1m)

Frequency Range:  45 to 20,000 Hz

Crossover Network:  2-way, 12 dB/oct, L-C parallel type

Crossover Frequency:  2,000 Hz

Dimensions (W x H x D):  240 x 410 x 200 mm (9-7/16" x 16-1/8" x 7-7/8")

Weight:  7,2 kg (15,9 lbs)

 

Sansui J11 loudspeakers

World's First "Mini" Speaker with Passive Radiator for Double-Rich Bass

Sansui has solved a big problem in little speakers. We custom-designed a passive radiator unit for the miniature 2-way, 2-speaker J11 system. It effectively restores the realistic rich bass sound which most other "minis" forfeit for their small size.

Double-rich bass isn't the only advantage in the J11. nor is its small size - no taller than a wine bottle or much wider than a paperback book - the feature you'll appreciate most. Where Sansui audio technology really shows up best is in the distinct sound image reproduction from this unique system - strictly hi-fi in every respect.

The surprising depth of the bass is complemented by natural sounding midrange and crisp highs for tonal balance. Bearing in the high frequencies is no problem since the newly-designed dome tweeter disperses its sound waves uniformly over a wide arc. The special design of the solid aluminum enclosure also adds to the big-hearted authority of this modestly sized "mini" from Sansui where it's all hi-fi.

 

Light and Firm Diaphragm for Tight Bass from 10 cm Woofer

It follows that if the passive radiator is to deliver authentic sound reinforcement from the woofer, the woofer itself must be of the highest performance standards. Here we've developed very special cone paper by mixing two different types of acerose pulps to achieve lightness, firmness and strength. The woofer cone, 10 cm in diameter, weighs only 0,6 grams, yet can respond faithfully to amp inputs over a wide frequency range.

Linearity in the woofer is further improved with the use of a separate, resin-formed surround. Distortion particularly in the second harmonics, is never noticeable, even during high-level reproduction, since the large magnet offers a huge 9,000 gauss field, uniformly distributed by the precision machined pole piece. The voice coil bobbin is highly heat resistant for constant performance, another assurance of excellent performance in all practical audio situations.

 

Soft-dome tweeter has Polyester-Based Cloth Diaphragm Large magnet

What are the three major benefits of the soft-dome design in tweeters. One, wide dispersion without "beaming". Two, low resonance to avoid distortion. Three, crispness and musically in the high frequencies. These, crispness and musically in the high frequencies. These add up to explain the popularity of soft domes, especially in "mini" systems. But we've added a fourth important benefit in outs, a better Signal-to-Noise Ratio by forming the one-piece diaphragm/rolled surround of responsive but firm polyester based cloth, damped by an acrylic-based agent, this construction avoids the use of chemical agents in binding the core to the surround, and thus prevents tonal degradation. To achieve transparent highs extending well into the supersonics, we've given this remarkable tweeter a powerful 9,000 gauss magnetic, flux, combulling phase irregularities by mounting an acoustic equalizer behind the diaphragm.

 

Specifications

Speakers

Woofer:  100 mm (4") cone type

Tweeter:  25,4 mm (1") dome type

Passive Radiator:  100 mm (4") concave type

Max. Input Power:  60 watts ( 80 to 20,000 Hz)

Impedance:  5 Ω

Sensitivity:  85 dB/W (JIS at 1 m)

Frequency Range:  45 to 20,000 Hz

Crossover Network:  2-way, 12 dB/oct. L-C parallel type

Crossover Frequency:  2,500 Hz

Dimensions (W x H x D):  122 x 300 x 131,5 mm (4-13/18" x 11-13/16" x 5-3/16")

Weight:  2,9 kg (6,4 lbs)