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





Denon DCD-2560 CD player

It's not just the technology; it's the application of the technology.

Denon's "Design Integrity" philosophy has always held that the way a technology is employed is as important as the technology itself.

To test this premise, Denon digital audio and studio recording engineers compare their own vast library of digital master tapes with the Compact Discs releases of the same material. This on-going listening and measurement research reveals that at present the finest CD quality can be obtained by the meticulous application of 20-bit digital-to-analog conversion.

Case in point; The DCD-2560 employs four separate DACs utilizing Denon's Lambda System Super Linear Converter technology to eliminate the aero-cross distortion and non-linearity that plagues conventional CD players, especially at low signal levels. Each Denon Super Linear Converter is factory hand-tuned for maximum resolution. In addition, Denon's unique half-sample interpolation system produces an effective 16x over-sampling rate to eliminate phase shift for a more accurate sound stage with true three-dimensional imaging.

20-bit SLC's enable Denon to offer Variable Pitch, which lets you compress recordings, tune your CD player to musical instruments, adjust tempo for dancing, create perfect segues while mixing, etc. Peak Search finds the point in a disc with the highest level to set recording levels most accurately. Auto Space inserts four second pauses between tracks to help locate selections. A Digital Fader fades recordings in and out while dubbing. Time Edit allows you to input the tape length you are using. Pick enhances this function by letting you rearrange the order of tracks for the best fit on the tape. Link extends the process over 2 CDs for longer tape lengths.

The critically-acclaimed Denon DCD-2560. a reaffirmation of one of life's oldest adages. It's not only whether you win the technology race, but also how you play the game.

 


Specifications

No. Of Channels: 2 channels

Frequency Response; 2 - 20,000 Hz

Dynamic Range:  100 dB

Signal-to-Noise Ratio:  116 dB

Total Harmonic Distortion:  0,0018% (1 kHz)

Separation:  110 dB (1 kHz)

Wow and Flutter:  Below measurable limit:  (±0,001% W peak)

Output Voltage:  2,0 V Variable 0 - 2 V

Power Requirements:  110 V, 20 - 240 V, 50/60 Hz

Power Consumption:  20 W

Dimensions (W x H x D):  434 x 122 x 360 mm (17-3/32" x 4-51/64" x 14-11/64")

Weight:  10,5 kg

Carver SD/A-490t CD player

Our ultra-advanced new SD/A-490t includes two vacuum tubes whose classic design has remained unchanged for over 50 years. We and many other critical listeners believe that this anachronistic addition to an already excellent CD player design significantly enhances its sound.

 

The amplifier that doesn't amplify - Between a CD player's D/A converter and external outputs is circuitry called a buffer amplifier which actually doesn't boost the signal strength at all. Instead, the buffer amp is a unity gain device which increases output current, and acts as a sort of electronic shock absorber, isolating the relatively fragile D/A chip set from the nasty outside world of demanding analog components.

 


Tubes versus Solid State -  More than 98% of all CD players use solid state deivces for buffer amplifiers. A handfull of hard-to-find, esoteric designs in the $1200to2500 range employ one or more tubes instead.  In ultra-expensive preamplifiers and power amplifiers, tube sound is subjectively described as "mellower", "warmer", "more open and natural" or simply "less harsh than solid state". Objectively, it's safe to say that tubes; - produce even-order distortion versus transistors odd-order distortion, particularly 3rd harmonics which are especially unpleasant to the ear; - act as a pure Class A device when used in a buffer stage (Class A outputs is considered the optimal amplifier configuration); - "Round off" the waveform when they clip, while over-driven solid state devices cut off sharply, causing audible distortion.

 

The SD/A-490t's output section - Our new CD player uses two 6DJ8 dual triodes placed between the digital-to-analog converter and a motorized volume control. Operated at less than 30% of their maximum capacity, the tubes achieve a highly linear output voltage with very low static and transient distortion while providing very high dynamic headroom. And because they're "loafing" at ⅓ their rated current capability, the SD/A-490t's tubes are designed to last the life of the CD player without replacement or need for adjustment.

 

An array of features as rich as its sound - We've designed the SD/A-490t to be both useful and easy to use. 21-key front panel or remote programming. Fixed and variable output. Programming grid display. Random "shuffle" play. Variable length fade. Automatic song selection to fit any length of tape. Even index programming for classical CD's. plus our proprietery Soft EQ circuitry which compensates for variables in special (L-R) information and midrange equalization found in many CD's mastered from analog tapes.

 


Specifications

Decoding:  1-bit linear, two channels

Frequency Response :  8 Hz - 20 kHz (+0,2 dB -1,0 dB  nominal)

De-emphasis Error:  +0,5 -1,0 dB Nominal

Output Level at 0 dB :  2,5 volts +_0,5V

Harmonic Distortion:  0,25% Nominal

Signal-to-Noise Ratio  104 dB Nominal

Channel Separation(EQ Off / On):  88 dB / 17 ±1,5 dB Nominal

Channel Balance at 1 kHz , 0 dB:  ±0,5 dB Nominal

Wow and Flutter:  Unmeasurable (quartz crystal accuracy)

Power Requirements:  120 V or 220 V 50/60 Hz

Power Consumption:  30 W

Dimensions (W x H x D):  483 x 96 x 311 mm (19 " x 3,8" x 12,25")

Net Weight:  4,5 kg (9,941 lbs)


 

Martin Logan Summit X loudspeakers


 Summit X—Flawless Electrostatic Performance Inspired by CLX

Inspired by CLX, Summit X is the first hybrid electrostatic speaker to bring controlled dispersion to low-frequencies. By using a precision Vojtko crossover network to apply variable phasing near the crossover point, dual woofer Controlled Dispersion PoweredForce technology provides seamless blending with MartinLogan’s controlled dispersion XStat transducer. Four modular feet allow vertical dispersion adjustment over a 12 degree range, while 25 and 50 Hz level controls fine-tune woofer output to provide deep, powerful, smooth, clean, and detailed bass throughout the listening environment. Control panel and ground effects lighting provide the final touch.

 


CLX™ inspired crossover engineering perfectly blends a high-resolution XStat™ electrostatic transducer and dual Controlled Dispersion PoweredForce™ woofers to provide an unparalleled sonic experience.

Key Features:

• CLS™ XStat electrostatic transducer

• Ultra rigid AirFrame™

• Dual 200 watt Controlled Dispersion Powered Force 10-inch aluminum cone woofers

• Precision built advanced topology Vojtko™ crossover

• 25 & 50Hz level control

• Highly adjustable ETC™ spikes

 

 


Specifications

Frequency Response:  24 – 23,000 Hz ± 3dB

Sensitivity:  91 dB/2.83 volts/meter

Impedance:  4 , 0.8 @ 20 kHz. Compatible with 4, 6, or 8  rated amplifiers.

Crossover Frequency:  270 Hz

High/Mid Frequency Driver:   1118  x 287 mm (44” x 11.3”) CLS Xstat electrostatic 3,209 cm² (497 in²)

Low Frequency Driver:  Two 10” (254 mm) 200 watt Powered Force aluminum cone woofers

Recommended Amplifier Power:  20 – 600 watts per channel

Weight:  34 kg (75 lbs) per channel

Dimensions (H x W x D):  154.8 x 32.2 x 54 cm (60.9” x 12.7” x 21.3”)

Electro-Voice Interface D loudspeakers


 The Interface D combines the best qualities of the finest speakers in the world without their weaknesses. The result is a new standard of accuracy, efficiency and overall performance.

There are speakers with exceptional midrange definition. And speakers with deep bass or exceptional stereo imaging.

Really of 28 Hz

The Interface D's bass response is virtually unprecedented. Its 3-dB-down point is 28 Hz. And unlike some speakers which have limited output at low frequencies, the Interface D can produce an incredible 106 dB long-term sound pressure level at 28 Hz.

The bass is also smooth. This is due in large part to placing the 12" woofer in a downward-firing position. This couples it to the floor and wall which smooths the response, by eliminating boundary effects caused by front mounting, and efficiency is increased by 3 dB.

 

A new kind of midrange

The efficiency and high output ability of the woofer made almost impossible demands of the midrange. In fact, it would have been impossible to design a midrange driver of reasonable size, high efficiency, high output and low crossover point using conventional speaker technology. So we designed our midrange using the same optimally vented technology we pioneered for woofers.

This optimally vented midrange uses exactly the same 16-pound magnetic structure as the woofer. So it can deliver long term sound pressure levels of up to 115 dB and peaks up to 125 dB. At the same time, it's small 6-1/2" cone provides excellent dispersion over its entire frequency range.

Without vented technology, a small cone couldn't produce high sound pressure levels at low frequencies - it just couldn't move enough air. But the self-contained, vented enclosure solves that problem. The enclosure and vent size are critically selected so at low frequencies, a small movement of the cone produces a large movement of the air in the vent. Over the lowest itself provides most of the system's output.

The exceptionally low crossover (350 Hz) made possible by the optimally vented midrange has an important audible result. There is no crossover in the most critical part of the vocal range. At last you'll hear an almost unbelievable clarity and definition. It's the "sweetness" many audiophiles associate with electrostatic speakers, but without their inherent weaknesses.

 


The tweeter without "horn sound"

This tweeter has natural, accurate sound and has significant advantages over conventional cone and dome drivers.

It is 10 dB more efficient than any cone or dome could possibly be. And it can play louder than conventional tweeters. This additional output is extremely important in contemporary music. At realistic volume, synthesizers and closemiked brass or percussion make severe demands of a tweeter. Thanks to its horn tweeter, the Interface D reproduces that kind of music accurately.

The third advantage of our horn tweeter is equally important-unusually uniform and well-controlled horizontal dispersion over its entire frequency range. The dispersion of all cone and dome drivers varies with frequency. At low frequencies, dispersion often exceeds 180 degree which causes severe diffraction from the edges of the cabinet. This result in cancellation effects and less uniform total acoustic power output. But a higher frequencies, conventional tweeters have much narrover dispersion. These constantly changing dispersion angles result in a vague, blurred stereo image.

But the Interface D's dispersion is tightly controlled by the 120 degree angle of the horn.  Even at low treble frequencies, dispersion remains well under 180 degree, eliminating diffraction effects. And even above 16,000 Hz dispersion is better than 110 degree.

 


Specifications

Frequency Response:  23 - 20,000 Hz ±3 dB, 28 - 18,000 Hz , 1 m on axis

Total Acoustic Power Output:  ±3 dB, 28 - 18,000 Hz

Horizontal Dispersion:

Angle 170° ±5° in the 500 - 1000 Hz octave bands

Angle 115° ±10° in the 2000 - 16,000 Hz bands

Anglw 110° in the 16,000 Hz band

Recommended Amplifier Power:  1,5 watts per channel minimum; 500 watts max

Sound Pressure Level:  97 dB at 1W/1m

Midband Sound Pressure Level (in a Typical Listening Room):

90 dB average, 100 dB peak with a 1,5 watt amplifier;

115 dB average, 125 dB peak (10 ms) with a 500 watt amplifier.

Maximum High Frequency Sound Pressure Level( In a typical Listening Room):  103 dB long-term average (10,000 Hz)

Midband Power Capacity:  50 watt long-term average; 500 watts peak (10 ms)

Crossover Frequencies:  40 Hz acoustic, 350, 3000 Hz electrical (may be bi-amplified at 350 Hz)

Transducers:

12" downward-firing woofer

6-1/2"  vented midrange

Radial horn tweeter

Impedance:  8  nominal; 5  minimum

Controls:  Environment slope (0 dB, -3 dB, -6 dB, -9 dB at 10,000 Hz)

Dimensions (H x W x D):  32" x 21-3/4" x 15-1/2"

Weight:  114 lbs

Cabinet:  Walnut veneer

Pioneer CS-30 loudspeakers

A bookshelf-style, 2-way, 2-speaker system with wide frequency range and superb directional characteristics.

The natural sound response that emanates from this small but highly efficient Pioneer speaker system will surprise you. Featuring an 8-inch woofer and 2,5 -inch cone tweeter placed in an infinite baffle type enclosure. Model CS-30 is especially designed for the medium-powered hi-fi system, or for background music, and it does its job well. Sound reproduction is smooth, brilliant - more stunning, in fact, than  you would usually expect from a system this small. And frequency range is very wide - from 50 to 20,000 Hz and flat. If you're looking for a beautifully compact system at a price that is apioneer realistic, take a look - and a listen - to Model CS-30. it's little bit more sound for your money.

 

Excellent Sound Reproduction

Model-CS-30 is a 2-way, 2-speaker system, to each enclosure is a newly-designed 8-inch woofer and 2-1/2-inch cone type tweeter which feature excellent sound dispersion and which are perfectly matched for balanced reproduction. You will also discover that the dynamic range of this system is very wide for its size and the frequency range is an excellent 50 to 20,000 Hz. Tonal quality is natural surprisingly clean and distortion-free - the key prerequisites for choosing a bookshell speaker system. The CS-30 also handles up to a big 16-watts of musical input power, more than enough to fill a large room with impressive sound. Speaker sensitivity is also superb, comparable to speaker system much larger at 93 dB/W at 1 meter.

 

Beautiful Furniture Appearance

The enclosure of each speaker features a walnut-finish decorative panel and is hand-polished. You'll find that each will complement the interior decor of any existing room, and that you'll be pround to show them off.

 


Specifications

Enclosure:  Infinite baffle type

Mounted Speakers:

1 x 8" woofer

1 x 2-1/2" cone type tweeter

Impedance:  8

Frequency Range:  50 to 20,000 Hz

Maximum Input Power:  16 watts

Crossover Frequency:  6,000 Hz

Sensitivity:  93 dB/W /1m

Dimensions (W x H x D):  305 x 533 x 221 mm (12" x 21" x 8-11/16")

Weight: 6,4 kg (14 lb)
 


 

Aiwa AX-S50 receiver

Mini Receiver Features

Adjustable synthesizer sensitivity control

4-digit LED tuning display

Auto search synthesizer tuning

7-point LED peak power meter/tuning signal strength display

FM muting and Loudness control

Click-stop bass/treble tone controls

Connections for Aux, Phono , Tape

Front panel headphone jack

 

A smart looking receiver of incredibly compact dimensions, the AX-S50 puts out a lively 20 Watts per channel; its main appeal however is in its many sophisticated features, some so advanced they are just beginning to make their appearance in current full-sized receiver models.

For fully electronic one-touch tuning capability, the tuner section incorporates a quartz PLL synthesizer which selects the station either automatically or manually. Up to 10 stations may be programmed into the tuner's "memory" and selected at random, irrespective of band. An A/B switch (A=1-5/B=6-10) serves to reduce the number of switches for a cleaner control arrangement.

As in other Aiwa mini units, capable phono equalizer design promises high signal/noise ratio (80 dB) and ample overload capability (180 Mv at 1 kHz). The RC-R300 wireless remote control system (optional) can also be added to give the AX-S50 even more versatility; wireless remote functions include manual station tuning selection of preset radio channels and listening modes, up/down volume adjustment and operation of the SD-L60 cassette deck.

 


Specifications

Tuner Section

Frequency Range:  87,5 MHz to 108 MHz

Usable Sensitivity:  11,2 dBf (2uv)

50 dB Quieting Sensitivty

Mono :  4,0 µV (17,2 dBf)

Stereo :  44 µV (38,0 dBf)

Signal-to-Noise Ratio:

Mono :  75  dB (70 dB DIN)

Stereo :  70 dB (66 dB DIN)

Capture Ratio:  1,5 dB

Selectivity:  65 dB (±400 kHz){

Total Harmonic Distortion

Mono :  0,15%

Stereo :  0,3%

Stereo Separation:  40 dB (at 1 kHz)

AM Tuner Section

Frequency Range: 

MW :  525 kHz - 1,605 kHz

LW :  150 kHz - 285 kHz

Usable Sensitivity:

MW :  300 µV/m (Bar antenna)

LW :  800 µV/m (Bar antenna)

MW :  30 µV/m (ext. antenna)

LW :  50 µV/m (ext. antenna)

Signal-to-Noise Ratio

MW :  52 dB

LW :  50 dB

Selectivity:  30 dB

Amplifier Section

Power Output:  20 watts per channel, Min. RMS at 8   from 20 - 20,000 Hz, with no more than 0,3% T.H.D.

Total Harmonic Distortion :  0,3% (at 8 ), 1% (DIN)

Frequency Response:  40 Hz to 16,000 Hz ±1,5 dB

Power Bandwidth:  10 Hz - 40 kHz

Damping Factor:  30

Separation:  35 dB (1 kHz)

Crosstalk:  60 db

Input Sensitivity/Impedance

Phono :  2,5 mV/47 k  

Aux, Tape,:  150 mV/47 k

Signal-to-Noise Ratio

Phono :  80 dB

Aux, Tape :  90 dB

Phono RIAA Curve:  30 Hz -15 kHz ±0,5 dB

Phono Overload:  180 mV (1 kHz)

Semiconductors:  16 ICs; 4 FETs; 56 Transistors; 69 Diodes; 18 LEDs

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

Power Consumption:  150 W or 140 W

Dimensions (W x H x D):  250 x 71 x 316 mm (9-7/8" x 2-13/16" x 12-1/2")

Weight:  3,6 kg (7,9 lbs)


 

Bozak Model LS-400 loudspeakers


 Model LS-400 is the largest of the Listeners Series. A three-way system, it employs component speakers identical to those used in the full-sized Bozak Concert Series speaker systems. And, indeed, the quality of reproduction, especially in the smaller sized rooms for which the Listener Series is designed , can scarcely be distinguished from the larger Bozak speakers.

 

True to Bozak tradition, the LS-400 has been designed in strict accordance with the basic laws of physics, so far as current materials and technology permit.

Fortunately, recent advances in cone geometry, a result of work in Bozak's laboratories, and in materials have permitted the adaptation of drivers from Bozak's Concert Series speakers for use in this compact model to provide a quantum increase in listening pleasure.

The LS-400 uses a new center-damped 12-inch lass speaker, a center-damped 6-inch midrange and a pair of Bozak's new Super-Z extended range treble speakers.

A phase-corrected crossover network provides smooth transition among bass, mid-range and treble speakers as musical frequencies vary. A three position trble switch permits selection of high frequency response characteristics to match room acoustics and personal listening preferences.

The use of two tweeters gives the LS-400 a feeling of spaciousness which has always been a characteristic of Bozak's larger systems.

The cabinet, designed for timeless simplicity, features genuine walnut veneer surfaces with a dull matte finish. The coordinated grille slides out to permit ready access to the front mounted speakers. Grille cloth can be changed by the owner to permit matching room decor.

 

Specifications:

Frequency Response:  40 - 20,000 Hz and beyond

Impedance:  8

Power Handling 80 watts, program, max. 15 watts minium

Phase-Corrected Crossovers:  800 and 2,500 ha at 6 dB/oc

Dimensions (H x W X D):  25-1/2" x 18" x 13-1/4"

Shipping Weight:  65 pounds

Bozak Models LS-250 loudspeakers

Model LS-250 is the second model developed in the Listener Series. It is the smaller three-way system to bear the Bozak name. Somewhat larger than the LS-200 , the LS-250 offers greater power handling capacity., the enhanced bass response associated with larger enclosures and the greater mid-range definition which characterized three-way systems as compared with two-way speakers.

 

The LS-250 embodies the experience and skills developed by Bozak's engineering team after more than "30 years" of designing loudspeakers which have been the standard by which knowledgeable audio engineers and audiophiles alike. Have judged loudspeakers performance.

 

Because of Mr. R.T. Bozak's insistence to strict adherence to the basic laws of physics, so far as current technology would permit, the great majority of Bozak speakers manufactured over the past three decades are still in service. It is rare indeed to find a traded in Bozak.

As technology has advanced, it has become possible to more nearly satisfy the underlying principles of physics in musical production. Model LS-250 represents the current state of the art.. It embodies a combination of frequency, phase and transient response which would have been impossible to achieve a decade ago.

 

The three-way LS-250 system incorporates a newly designed 12-inch bass speaker, a 4-inch midrange driver and Bozak's acclaimed new Z-series treble speakers. A phase-corrected cross-over network smoothly shifts sound from bass to midrange at 800 Hz and from midrange to treble at 2,500 Hz.

A three-position treble switch permits the selection of "Bright"> "Normal" or "Mellow"  sound characteristics to match listening room acoustics.

The cabinet is a rigid 5/8-inch totally sealed enclosure of the "Infinite baffle" type. Exposed surfaces are clad in walnut-grained vinyl of such quality that it is scarcely distinguishable from actual wood. The matching brown cloth grille is removeable for easy access to the front mounted drivers.

 

Specifications

Frequency Response:  45 - 20,000 Hz and beyond

Impedance:  8 ohms

Power Handling:  80 watts , program, maximum

Crossover Frequencies:  800 Hz and 2,500 Hz at 6 dB/oct

Dimensions (H x W x D):  23-1/8" x 14-1/2" x 12-1/4"

Weight :  48 pounds (shipping)


 

Bozak Model LS-200 loudspeakers

Bozak Listener Series. Model LS-200

The name Bozak has always stood for the very highest standards in sound reproduction available from current technology. Now, advances in the state -of-the-art. Have enabled Bozak to develop a new generation of compact speaker systems known as the Listener Series.

First and most compact of the Listener Series speakers is Model LS-200, designed to provide an optimum combination of frequency, phase and transient response, resulting in an experience in musical reality from a minimal sized system which can only be appreciated by listening.

 

Designed and engineered in Bozak's own laboratories by a team personally directed by Mr. R.T Bozak, the LS-200 is intended to provide a lifetime of listening satisfaction. Even after "30 years" of manufacture a traded in Bozak speaker system is a rarity.

Underlying the discernible superiority of Bozak Speaker systems is a tradition of strict adherence to the laws of physics insofar as current technology will permit. This tradition has restrained Bozak from incorporating the many "startling" developments which have come and gone in the loudspeaker industry. What does make the LS-200 outperform previous units is its combination of speakers and cabinetry.

 

The 8-inch bass driver is supported in a rigid cast basket, not a stamped  frame. The cone is of lightweight aluminium which functions as a heat sink, enabling it to handle much higher levels of power without burning out, compared with conventional paper cones.

The treble speaker is Bozak's new B-200Z tweeter, which has unequalled smoothness over an extended range, yet lacks the "hiss" and "sizzle" which characterize so many extended range units, it, too, features an aluminum cone.

The two speakers are interconnected with a phase-corrected cross-over network which assures smooth transition from one speaker to the other as musical frequencies vary.

The entire system is housed in a rigid 5/8 inch-thick enclosure to eliminate sympathetic vibrations from the cabinet. A scientifically designed duct enhances bass performance. Both drivers are front mounted behind a removable grille. Exterior surfaces are covered in walnut-grained vinyl.

 

Specifications

Frequency Response;  45 to 20,000 Hz and beyond

Impedance:  8 ohms

Power Handling:  70 watts, program, maximum

Crossover Frequency:  2,000 Hz 6db/octave

Dimensions (H x W x D):  20-1/4" x 11-3/4" x 10-3/4"

Weight (Shipping):  34 pounds


 

Epicure Ten loudspeakers

 

In 1967 Epicure introduced the Model 100. ever since, the top ratings of audio critics, engineers, and consumer testing laboratories have made it a standard in the industry.

Now , after years of research, we 've created a speaker worthy enough to succeed it; the Epicure Ten.

The improvements are not subtle, as you might expect. But dramatic as you can easily hear. We believe the Epicure Ten is the most significant breakthrough in medium-priced speakers in almost a decade.

 

Tweeter

Here is a 1-inch, air-spring tweeter unlike anything anyone has heard before.

There's a balanced, low-mass voice coil assembly. Not centered semi-perfectly with silicone, but a unique space-age fluid.

No other speaker manufacturer uses it. - Very possibly they'll never want to ; it cost $75 an ounce.

The result is lower distortion in the midrange, particularly noticeable in the voices. And the tweeter produces nearly hemispherical dispersion across most of the audible range.

 

Woofer

The Epicure Ten has a unique, low-mass woofer. Its low-vacuum deposit cone is light and stiff.

You ger a smoother more accurate bass. The usual resonance and heaviness of the low notes is eliminated. And it's possible to really hear the individual bass instruments, not just bass.

 

Crossover

The Epicure Ten has a vastly superior electrical crossover. The usual distortion near the crossover frequency is practically non-existent. Mid-range clarity and detail are equally superb.

 


Specifications

Frequency Response:  42 - 20,000 Hz ±3 dB. Individual frequency response graph provided for each speaker.

Recommended RMS Power Range:  12 - 75 watts

Dispersion:  Nearly hemispherical (180 degrees) from all radiating planes

Crossover Frequency:  1800 Hz , 12 dB /octave roll-off

Drivers

Tweter :   1" air spring transducer

Woofer :  8" low frequency transducer

Impedance:  8

Tweeter Level Control:  Rheostat type

Inputs:  Convenient push-button terminals,

Finish:  walnut-like cold laminate

Grille:  Acoustically transparent cloth. Removable. High frequencies aren't filtered out. Dark brown is the standard color.

Dimensions (W x H x D):  12" x 22" x 9-5/8"

Weight:  33 lbs

Epicure Twenty loudspeakers

The Epicure Twenty incorporates superior linearity, excellent dispersion and nearly perfect system phasing. The Epicure Twenty delivers flat, undistorted linear frequency response from 35 - 20,000 Hz.

The floor-standing Epicure Twenty speaker is designed with a front-firing module and an angled top-firing module. Even in the design of the Twenty's cabinetry sound was the single, overriding consideration. The two modules work together to create a sound field. It combines direct sound (radiating from the front module) with reflected sound (from the top module, which not only radiates sound itself, but also angles the sound across your ceiling, which reflects it back to you).

 


Twenty Tweeters

Here are two of Epicure's 1-inch , air-spring tweeters, each one swept, graded and selected for use in this top line, each pair matched for compatibility.

There's a balanced, low-mass voice-coil assembly. Not centered semi-perfectly, but centered perfectly. And not fixed with the usual silicone, but fixed with a vastly superior substance, a space-age fluid that no-one else in the business uses. The result is lower distortion in the midrange, particularly noticeable in the voices. And the tweeters produce nearly hemispherical dispersion across most of the audible range.

 

Twenty Wofers

The Epicure Twenty uses two unique, low-mass woofers. Their low-vacuum deposit cones are light and stiff.

The woofers are individually checked for resonance and, like the tweeters, graded and matched for performance compatibility. You get a smoother, more accurate bass. The usual resonance and heaviness of the low notes is eliminated. And it's possible to really heart their individual bass instruments, not just "bass"

 


Specifications

Frequency Response:  35 - 20,000 Hz ±3 dB

Recommended RMS Power Range:  20 - 100

Dispersion:  Nearly hemispherical (180 degrees) from all radiating planes

Crossover Frequency:  1800 Hz , 12 dB /octave roll-off

Drivers

Tweter :  2 x 1" air sprong transducer

Woofer :  2 x 8" low frequency transducer

Impedance:  8

Tweeter level Control:  Rheostat to attenuate upper tweeter

Inputs:  General radio-type input terminals, accept dual banana plugs or screw-down type

Finish:  Hand rubbed walnut veneer

Grille:  Acoustically transparent cloth. High frequencies aren't filtered out. Dark brown is the standard color.

Dimensions (W x H x D):  12" x 18-1/2" x 29"

Weight:  64 lbs


 

Genesis 201 loudspeakers

The Genesis 201 loudspeaker system was created for those discriminating music lovers who know no compromises. This state of the art. System is designed to reproduce music at live listening levels with virtually no restrictions on dynamic range, frequency response or imaging capabilities.

 

The Genesis 201 is a floor standing four-piece loudspeaker system featuring a pair of dipole midrange/tweeter panel consists of a 48-inch midrange ribbon, twelve front-firing and three rear-firing 1-inch planar ribbon tweeters. Each woofer tower contains eight cast-frame, metal-cone woofers driven by an 800-watt remote controlled Servo Amplifier. All the transducers in this unique, state-of-the-art. System have been designed to be a nearly perfect piston within its useable frequency band.

The 1-inch planar ribbon tweeter described by the audiophile press as possibly "the world's best", is hand-crafted from an 0,0005inch thick laminated membrane of aluminum and Kapton. The extremely low mass of the tweeter's diaphragm means that this driver has a frequency response considerably beyond the human hearing range.


 

Genesis 201's midrange transducer is single-piece, planar ribbon driver constructed of a very thin layer of aluminum laminated to a 0,001 inch thick Mylar substrate and surrounded by over 24 feet of barium ferrite magnets.

An active 1600-watt servo feedback system, employing accelerometers as sensors, lowers the woofer distortion by a factor of 10 compared to its open loop response. This results in the 201 low frequency system having lower distortion and laster response time than conventional designs.

 


Specifications

Frequency Response:  16 Hz - 36,000 Hz ±3 dB

Sensitivity:  90 dB at 1 watt/1 meter

Maximum/Minimum Tube Power:  500/70 watts per side

Maximum/Minimum Solid State Power:  750/70 watts per side.

Input Impedance:  4  (nominal)

HF Transducers (per Side):  fifteen Genesis 1" Ribbon Tweeters

Midrange Transducer (per Side):  48" Genesis Ribbon

LF Trasducers (per Side):  eight 8" cast-frame metal-cone woofers

Amplifier Controls:  Phase, Gain, Low-pas, High-pass

Speaker Controls:  Rear Tweeters (±1 dB); Upper Midrange Contour (±0,75 dB)

LF Amplifier Power Rating:  4 x 400 watts RMS

Amplifier Inputs:  Stereo XLR (balanced), Stereo RCA

Amplifier Input Impedance:  33 k

Dimesnions (H x W x D):

Mid/Tweeter Panel :  72" x 13,5" x 9,75"

Woofer Tower :  72" x 11" x 22"

Amplifier :  10" x 12" x 19"

Weight

Mid/Tweeter & Woofer Tower :  295 kg (650 lbs)

Amplifier :  32 kg (70 lbs)

Finish:  Rosewood