Ayre Acoustics K-1 XE  Evolution Solid State Preamplifier w/ External Power Supply !

This is their Top model in the Evolution series.  It is highly regarded (many prefer this TOP version to the newer version's) and is their Signature Version (NON DIGITAL) and very desirable in the Audiophile World...

Great sound and one of the best solid state pre amplifiers I've heard !

 Line stage version no phono stage.

Color: Silver.

S/N# 2Q0187

K-1 Specifications

Gain - Line:
16 dB to balanced outputs
10 dB to unbalanced outputs

Gain - Phono:
Adjustable --- 40 dB, 50 dB (factory setting), 60 dB

Input Impedance - Line
10 kohm (each phase)

Output Impedance:
300 ohm (each phase)

Power Consumption:
20 watts

Dimensions:
18"W x 11"D x 5-1/2"H
(46cm x 28cm x 14cm) - Main Unit

13"W x 8"D x 3"H
(33cm x 20.3cm x 7.6cm) - Power Supply

Weight:
45 pounds (20kg) - Complete Unit

K-1 Preamplifier

The Ayre K-1 preamplifier is a breakthrough product that redefines the boundaries of high-performance audio design. By taking a clean-slate approach, Ayre has created a unique component that sets a new standard into the next millennium.

Direct-Path Technology

The placement of each component is optimized for direct signal flow

The focal point of the K-1’s design is Ayre’s revolutionary Direct-Path Technology (TM). By simplifying both the circuitry and the physical signal path, resolution and clarity are maximized. The entire line stage, including every connector and control, is directly soldered to a single circuit board mounted parallel to the rear panel of the chassis. A unique system of precision timing belts synchronizes the individual sections of each control. Surface-mount technology allows for the miniaturization of the circuit layout. The net result is that all circuitry, from input to output, is contained within six inches!

Circuitry

The signal path is fully balanced from input to output and uses FETs exclusively

The Ayre K-1 circuit is a true complementary design using no negative feedback. The signal path is fully balanced from input to output and uses FETs exclusively. The circuit’s elegant topology comprises a cascoded differential input stage followed by a source-follower output stage. This straightforward approach results in remarkable musical purity. To accommodate a wide variety of signal sources, the gain can be easily adjusted by changing a single resistor per channel.

Controls

Achieving the maximum performance inherent in balanced circuitry demands use of stepped attenuators for level controls

The Ayre K-1 utilizes Shallco rotary switches that provide the highest possible level of sonic quality. These custom-made units employ solid silver contacts and wipers for maximum signal integrity. Built to military standards, their self-cleaning action assures a lifetime of performance. For utmost ergonomic function, the level control features forty-six discrete positions, providing calibrated 1.0 dB steps over virtually its entire range.

Power Supply

The power supply is housed in a separate enclosure to ensure purity of the musical signal

Schottky high-speed rectifiers combine with inductor-input filtering to yield exceptionally pure DC power. Discrete FET master regulators are located in the external power supply enclosure. In addition, each amplification stage in each channel is provided with its own discrete FET regulator, also of a zero-feedback design. Our exclusive Ayre Conditioner assures the cleanest possible power from your AC line.

Logic Functions

Sophisticated circuitry detects power failures as well as low line voltage conditions, instantly muting the output and placing the preamplifier into the standby mode

The Ayre K-1’s functional status is indicated by a unique tri-color LED on the front panel. When first powered-up, the unit operates in standby mode while the circuitry stabilizes, indicated by a red display. It then automatically enters into the muted condition, shown by a green display. When the listener activates the music signal, the indicator glows a soft blue. Sophisticated circuitry detects power failures as well as low line voltage conditions, instantly muting the output and placing the preamplifier into the standby mode.

Remote Control

A precision stepper motor operates the level control in accurate, repeatable increments

The optional remote control is implemented with a commensurate level of attention to detail. The incoming infrared command is used to generate its own decoding signal, assuring absolute freedom from internally generated high-frequency interference.

Phono Stage

Gain is easily adjusted by replacing a single resistor per channel

Also available is a sophisticated phonograph playback stage. Using the same technology employed in the line stage, the pure FET circuitry features a balanced input to extract the maximum performance from the analog source. The ultra-low-noise design can accommodate virtually all cartridges, from low-output moving coils to high-output moving magnets. Ayre Reference Series phono cables are also available, providing a direct link between the phono cartridge and the balanced input of the preamp.

Features

The Ayre K-1 is truly the milestone by which all other designs will be judged

The Ayre K-1 offers three balanced inputs and three unbalanced inputs. If additional unbalanced inputs are required, Ayre also offers ultra-high quality RCA-XLR adapters. The input labels are customized by the listener for their particular system, simplifying operation. Two balanced outputs and one unbalanced output are provided, allowing for maximum flexibility in any installation.

It is best to call David visit: www.weinhartdesign.com call with questions in Los Angeles Showroom from 11-4 @ 310-472-8880 or on my cell after hours and weekends from 10-10 @ 310-927-2260 or e-mail me directly @ [email protected]

Weinhart Design has lots of other items new and used and if you’re in Los Angeles or visiting please accept my invitation to experience our World Class Audio Showroom and please visit our web site www.weinhartdesign.com

We are always interested in purchasing quality Audio and Video items, CD & LP collections and most quality trades are welcomed.

All sales out of California are State Sales Tax exempt. California State Sales Tax of 9% applies for items picked up or shipped to a California address.

We accept payments by Bank Wire Transfers without fees and is the only form of payment on all sales out of the U.S. and Canada. We prefer this method of payment and also makes shipping to addresses other than billing OK.

VISA, MC and Papal are gladly accepted within the U.S. and Canada as long as the charge is approved and shipping to the billing address on record and adds a 3% fee to cover costs.

Please call me directly in my world class showroom in Los Angeles weekdays from 11-4PM @ 310-472-8880 or on my cell including weekends from 10-10PM 310-927-2260 and I can answer your questions and help you with all of your new and pre owned needs.

Making better Sound One system at a time,

David Weinhart
Weinhart Design, Inc.
President & CEO

The Audio and Video Expert
e: [email protected]
www.weinhartdesign.com

2337 Roscomare Road, Studio #1
Los Angeles, California 90077
Showroom) 310-472-8880
Cell) 310-927-2260

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