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





Kyocera PL-910

 The Kyocera PL-910 turntable is not only the top of the Kyocera turntable line, it will stand in audio history as one of the finest turntables ever built. It incorporates the most up-to-date technology and materials to accomplish the age-old goal of all turntable designers; rotational stability and resonance-free performance.
 Consideration has been given to every last detail in the manufacture of this masterpiece, down to the actual construction materials themselves.  The plater, for example, has been manufactured on Fine Ceramics - to be precise, alumina-ceramics-proven to possess hardness qualities close to those of diamond - and vibration - attenuating characteristics far superior to conventional materials such as ordinary aluminum. This Fine Ceramics platter is placed in full planar contact with an aluminum sub-platter of a different resonance frequency, thereby dramatically reducing unwanted resonances. Fine ceramics is used further in the platter spindle and the thrust bearings of the spindle. These extremely hard thrust bearings are capable of supporting the heavy platter without excessive wear, creating an ultra-precise pivot point for extremely smooth rotation.
 The base chassis of the PL-910 is made of Ceramic Compound Resin (CCR) to  isolate the turntable itself from external vibration (mechanical and acoustical feedback). The "howling" normally experienced in the presence of loud signals from large loudspeakers is unheard of in the PL-910.

Although the PL-910 is equipped with a heavily damped powerful Dc-servo brushless motor, the actual drive system is via belt to remove any last possible doubt concering rotational stability.
 Features
Ceramic Compound Resin (CCR) base chassis successfully isolates external vibration.
A high-purity alumina-ceramics platter mounted in full planar contact with an aluminum sub platter with differnt resonance characteristics  creates an effective resonance barrier.
Dual-suspension system separates the turntable and tonearm from the sub-chassis to isolate any possible external sources of vibration.
DC-servo brushless motor belt-drive system.
Heavily-damped motor avoids the creation of internal vibrations. Self-illuminated strobe with on/off switch.
4 mm thick transparent acrylic cover.
Four types of optional arm bases to mount most high quality separate tonearms.
Specifications
Type: belt-drive, double float system
Speeds:  33 ⅓ and 45 rpm
Platter:
Main-platter:  Made of almina-ceramic
Diameter :  300 mm (11-13/16")
High :  17,2 mm (43/64")
Weight :  3,6 kg (8 lbs)
Sub-platter:  Made of aluminum
Diameter :  260 mm (10 ¼")
Weight :  1,4 kg (3 lbs)
Wow and Flutter:  0,025% (WRMS,JIS)
Signal-to-Noise Raatio:  78 dB (DIN-B) / 60 dB (JIS)
Dimensions (W x H x D):  455 x 190 x 392 mm (18" x 7-1/2" x 15-7/16")
Weight:  20 kg (44 lbs)
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