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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





Yamaha GT-5000 turntable

Referencing the esteemed turntables of the golden age of Hi-Fi, the GT-5000 expands on this heritage in the pursuit of pure musicality. Including a pure straight and short arm for absolute transparency and openness in sound, balanced signal path delivering absolute purity in signal transmission and design reflective of the GT heritage and absolute quality in craftsmanship and construction, the GT-5000 presents a new era on Hi-Fi from Yamaha

 

Features

Massive yet elegant heavy wooden chassis effectively serve to dampen vibration
Large, heavy double-structured platter for enhanced stability and performance
Heavy 5 kg Aluminium Platter
Custom belt-drive mechanism driven by 24-pole, 2-phase AC synchronous motor
Short, straight tonearm designed to deliver superior rigidity as well as a balanced weight
Specially-designed custom feet
XLR balanced output jacks that enable end-to-end balanced signal transfer from cartridge to speaker

 

 


Straight, Short Arm for Openness and Transparency in Sound

Accurately capturing the audio from the source is the imperative first step in delivering authentic, true, Hi-Fi sound. The flagship GT-5000 adopts a short, straight arm designed to deliver superior rigidity as well as balance of weight and mechanics which results in improved traceability. A rigid mechanism with simple construction means there is no need for an inside force canceler weight.

 

 

Customised Belt-drive for Stabilising Platter

The customised belt-drive mechanism of the GT-5000 minimises the influence of the motor cogging and excludes feedback control for an open and smooth sound. The original GT concept utilised the notion of internal mass to counter feedback control. This is built upon with the GT-5000 which negates feedback control through the belt-drive.

 


Specifications

Phono motor section

Drive System:  Belt drive

Motor Type:  AC synchronous motor

Motor Drive:  Crystal sine wave

Rotation Speeds:  33-1/3 and, 45 rpm

Rotation Speed Variation:   ±0.1%

Rotation Speed Adjustment:  Built-in crystal osc./strobe light

Adjustment Step:  0.1%

Adjustment Range:  ±1.5%

Wow and Flutter:  0.04% or less (W.R.M.S.)

Platter:  Aluminium

Diameter:  350 mm

Sub Platter:  Brass

Diameter: 143 mm

Tonearm Section

Type:  Static balance straight tonearm

Effective Arm Length:  223 mm

Overhang:  17 mm

Acceptable Cartridge Weight (including head shell): 

Counter Weight Small :  16–23.5 g

Counter Weight Large :  23–34 g

Head Shell Weight:  14 g (including wires)

Audio Section

Output Analog Audio:
1 x RCA Phono Out

1 x XLR Phono Out

Power Supply: AC 220–240 V, 50/60 Hz

[Power Consumption:  15 W (While playing);  0.4 W (While stopped)

Weight:  26.8 kg

Dimensions (W × H × D):  546 × 223 × 411 mm (including feet and protrusions)

Allowable Operating Temperature:  10–35 °C


 

Luxman PD-191A turntable

LUXMAN introduces the PD-191A, a premium turntable system designed to replace the long running PD-171 series.

Savor the endlessly rich warmth of a piece of music and that special sense of time flowing differently when you play a cherished analog recording. PD-191A is a superb player capable of delivering the excellence of vinyl recordings playback experiences. Our newly developed, original tonearm, with extremely high initial sensitivity, uses a knife-edge vertical bearing system to realize those sensitive movements that make up the finest nuances of a musical moment. Combining a silent and refined DC motor belt-drive system supported by a robust power supply; PD-191A offers a truly high-fidelity and emotional vinyl listening experience.

 

Newly developed, completely original tonearm - the PD-191A is our LTA-710 static balanced tonearm which employs knife-edge bearing technology for excellent initial movement sensitivity.

 


Brushless DC motor and high-capacity power supply - The drive motor is one fundamental component of a belt-drive analog player where powerful and stable platter rotation is of paramount importance. The PD-191A features an original, high-precision, high-torque, brushless DC motor supported by a float-mounted, highly stable and fully regulated large-capacity power transformer that has been upgraded to higher specifications for today’s favored high-mass platters.

 


A heavyweight, high-mass platter with a huge moment of inertia - The platter chosen for the PD-191A is a 35mm-thick, 5.2kg heavyweight disk, machined from a single, extremely thick aluminum billet, precisely diamond cut and finished to exact surfaces which beautifully reflect light.

 

Elegant, timeless LUXMAN industrial design, featuring a wood front-panel and low center-of-gravity chassis - Our selection and finishing of the external and structural materials that make up the finished product are highly important to us as we feel that the listener’s operation of an analog player should be a tactile and visually satisfying experience.

Multiple integrated vibration damping structures

Three selectable rotation speeds with pitch control and stroboscope indicator

 


Specifications:

Drive System:  Belt drive system

Motor:  Brushless DC motor with PID control

Material:  Machined aluminum, Surface finish: Diamond cut

Revolution:  33 ⅓ rpm, 45 rpm, 78 rpm (3 speeds selectable)

Revolution Adjustment Range:  ±6% (each rotation speed adjustable independently)

Wow and Flutter:  0.04% or less (W.R.M.S.)

Platter Weight:  5.2 kg

Tonearm Section        

Type:  Static balanced, S shaped, universal type

Bearing:  Concealed vertical knife edge

Effective Length        :  256 mm

Overhang:  16 mm

Tracking Error Angle:  +1.07° to -1.52°

Applicable Cartridge Weight:  4 to 11 g (including headshell 17 to 24 g)

Adjustable Height Range:  22 mm

Anti-skating:  0 to 4 g

Power Source:  230 V50 Hz / 115 V60 Hz

Power Consumption:  5 W

Dimensions (W x H x D):  491 × 128 (to the upper surface of the platter) × 399 mm

Net Weight:  24.8 kg (main unit), 26.4 kg (with dust cover)