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What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Technics SL-D3 turntable

Features:

Front panel controls provide exceptional convenience

Integral rotor/platter structure for stable rotation

"TNRC" (Technics Non-Resonance Compound) base material provides an acoustic shield

Low-mass, low-friction gimbal suspension tonearm

Pitch control with illuminated stroboscope

Viscous-damped cueing

Anti-skating control

Hinged, detachable dust cover

Auto-start, auto-stop, auto-return and programmable repeat play make the SL-D3 a pleasure to use.

Since everything is automatic, you don't need to touch the tonearm unless you want to move too a particular cut on the record. The "memo-repeat" feature allows you to repeat a rcord up to six times, or indefinitely if you prefer.

 


Ask any disc jockey about direct-drive specifications as accurate as these and he'll tell you how important they are. He'll also tell you how expensive they are. Unless he's heard about Technics D-3 turntables. You'll use our D Series turntables for the same reasons radio stations and discos use our professional turntables; the performance of Technics direct drive. Yet perhaps the best part about all this performance is the prices you can have it for.

And with Technics, the price includes our B-FG servo-speed control which constantly monitors and instantaneously corrects turntable speed. So even if the power fluctuates, your Technics direct-drive performance won't. that's an important feature.

So is having all the electronic controls on the front panel. You can turn the power on, change speed, change record size, program Memo-Repeat, even vary the pitch by 10%, all without ever lifting the hinged, detachable dust cover. But when you do, you'll discover Technics universal S-shaped statically balanced tonearm. It not only has an anti-skate control but oil-damped cueing , too.

And the Base is made from Technics unique THRC base material. So even if you play your music loud, there's little chance of acoustic feedback.

 


Specifications

Tunrtable Section

Type:  Automatic turntable

Drive Method:  Direct drive

Motor:  Brushless DC motor

Drive Control Method:  B-FG servo control

Turntable Platter:  Aluminum die-cast

Plater Diameter:  312 mm (12-9/32")

Speeds:  33-⅓ and 45 rpm

Pitch Control:  10% adjustment range

Wow and Flutter:  0,014% WRMS

Rumble (IEC 98A)

Unweighted :  -53 dB

Weighted :  -75 dB

Tonearm Section

Type:  Universal Tonearm

Effective Length:  230 mm (9-1/16")

Trcaking Error Angle: 

Within 2°32' at the outer groove of 30 cm (12") record

Within 0°32' at the inner groove of 30 cm (12") record

Offset Angle:  22°

Stylus Pressure Adjustment Range:  0 - 2,5 g

Applicable Cartridge Weight Range:  6 - 9,5 g (13,5 - 17 g including headshell)

Headshell Weight:  7,5 g

Cartridge Section

Model No.:  EPC-270 C

Type:  Moving magnet

Frequency Response:  20 Hz to 25 kHz (20 Hz to 15 kHz ±2 dB)

Output Voltage: 

3,2 mV at 1 kHz (5 cm/s, zero to peak lateral velocity

9 mV at 1 kHz, (10 cm/s zero to peak 45° velocity ) DIN 45 500

Channel Separation:  25 dB at 1 kHz

Channel Balance:  within 2 dB at 1 kHz

Compliance (dynamic):  10 x 10¯⁶ cm/dyne at 100 Hz

Stylus Pressure:  1,75 ± 0,25 g (17,5 ± 2,5 mN)

Load Impedance:  47 k  to 100 k

Weight:  6,0 g

Genaral

Power Requirements:  110-120 / 220-240 V, 50/60 Hz

Power Consumption:  4,5 W

Dimensions (W x H x D):  430 x 130 x 375 mm (16-59/64" x 5-7/64" x 14-49/64")

Weight:  7 kg (15,4 lb)


 

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