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





JVC L-E5 turntable

 

Ultimate Tracking Accuracy Combined with Full-Feature Convenience

JVC's L-E5 Linear Tracking Turntable is a masterpiece of miniaturization. Not only were our designers able to reduce outisde dimensions to little more than that of a record jacket (it's only 34 cm wide) but they were able to incorporate the most advanced and most accurate record tracking system in existence into its design. This actually contributed to the clean lines and unostentatious controls that make the L-E5 as much a pleasure to see as to hear.

 

Linear tracking eliminates tracking error, reduces distortion and produces clear sonic images.

The grooves in a phonograph record are the result of a parallel-tracking stuido cutting lathe and that's the way the tonearm of the :-E5 plays them back for yopu. Tracking error is eliminated and with it music marring distortion, intermodulation, crosstalk and poor separation. In the L-E5, a computer aided Electro Dynamic Servo system and a no-contact optical sensor keep the tonearm 90° tangential to the record groove from beginning to end of play.

 


Short low-mass straight aluminum tonearm with integrated dual-magnet cartridge.

The tonearm of the L-E5 is a studey in simplicity, its low-mass design reduces arm resonance and there is no need for the complex anti-skating compensation devices required by standard pivoted-tonearm designs. JVC's New Gimbal Support for the tonearm assures high sensitivity.

 

All tonearm movements are computer controlled via convenient front-edge controls.

The L-E5 is a fully automatic turntable with microcomputer controlled functions - lead-in, cue, return, or repeat. All controls are up front, outside the closed dust cover including the buttons that move the tonearm left and right for total hands-off control.

 

The coreless DC servo motor and JVC FG Super Servo.

Naturally the golden combination of two JVC technologies are employed to assure absolutely stable, cog-free speed accuracy.

 


Specifications

Motor:  DC type, FG servomotor

Drive System:  Direct drive

Speeds:  33-⅓ and 45 rpm

Wow and Flutter:  0,03% WRMS

Signal-to-Noise Ratio:  more than 78 dB (DIN B)

Tonearm Type:  Linear Tracking statically balanced low mass arm

Effective Length:  142 mm

Tracking Error:  ±0,25°

Cartridge Model:  MD-1034

Type:  Low Mass Moving magnet

Frequency Response:  10 Hz - 25 kHz

Output:  2,4 mV

Channel Separation:  25 dB load Resistance:  47 k  - 100 k

Compliance:  8 x 10¯⁶ cm/dyne

Stylus Tip:  0,6 mil diamond

Tracking Force:  1,5 g

Dimensions (H x W x D):  115 x 340 x 357 mm

Weight:  5,7 kg (12 lb)

Mirage MRM-1 loudspeakers

MRM-1 The Monitor

 

Through long term R&D of a series of „cost-object” loudspeakers, a member of Mirage innovations have revolutionized enclosure resonance control, loudspeaker driver response, dispersion and freedom from distortion. The MRM-1 delivers these innovations in a spectacularly beautiful, incredibly compact enclosure.

 


In the MRM-1 the drivers have been chosen for their unique characteristics and powerful capabilities. These optimally designed components could never reach their performance goals in a conventional cabinet. The MRM-1’s enclosure is constructed with a series of alternating proprietary mediums laminated together, culminating in a baffle finished with a nine inch slab totally inert, ultra-dense Corian. The complex contours of the polished baffle are artfully shaped to enhance the driver’s unique dispersion characteristics.

 

Audition a thousand others and you’ll return to MRM-1 again and again. In achieving your dream of physical beauty, deep bass extension, holistic imaging and unparalleled detail,, the technology is only the means. The MRM-1 vividly recreates the original musical event, with every song, every performance … every time.

 


Specifications

System Type: Bass Reflex Monitor

Frequency Response :  40 Hz - 22 kh z ±3 dB

Tweete r: 1” 925 mm) pure metal Hybrid Dome

Woofe r : 5-1/2” (14 cm) Carbon, Graphite & mica Injection Polypropylene Cone with Butyl Surround and I.M. Copolymer Basket.

Front Baffle: Non-defracting Corian

Crossover Point: 1,8 kHz

Room Efficiency: 85 dB

Impedance : 8  

Required Amp Power : 50 – 150 watts RMS/channel

Inpu t: Gold Plated Cardas Bi-Amp/Bi-Wire terminals

Finish : Black Ash, Cherry or Tigerwood

Dimensions : 331 x 193 x 272 mm (13” x 7-9/16” x 10-7/8”)

Weight : 16 kg (35 lbs)

Allison 130 loudspeakers


 

The Allison 130

to hear the Allison 130 is to hear one of the finest speakers available today – a system without compromise at a truly affordable price.

Largest of the series, the Allison 130 has the same woofer and the same profoundly extended bass response as the Allison Nine – the performance leader in our Designer Series. Listening to the 130, it is difficult to believe that a loudspeaker could possibly be better; few are, and they all cost far more.

Allison technology provides uncompromised performance and quality in speakers which can reproduce every musical nuance of modern digital and analog recordings. Our manufacturing process permits economy of price. The result is unique value and listening pleasure.

Allison 120 loudspeakers


 

The Allison convex-diaphragm tweeter is functionally equivalent to a pulsating hemisphere, so dispersion at the highest frequenties is more uniform than that of any other tweeter. This design produces flat power output without on-axis beaming, precise stereo imaging over a large listening area, and an accurate simulation of the original space around the image. Allison technology reproduces sound that musicians and experienced concert-goers immediately recognize as being very close to the original.

 

The Allison 120 has the same robust, solid bass that Stereo Review called „astonishing” in the Allison models Four, Five and Seven. Middle and high frequencies have the transparency and openness that only the Allison tweeter can provide. We consider this system to be one of the best buys of all speakers now available.