Esoteric K-03X


SKU: Esoteric K-03X Category: Tags: ,

Replaced by Esoteric K-03XD

The K-03X all-in-one player is designed to offer as much of the stellar performance provided by the K-01X as possible.


Using the same design philosophy as the K-01X, it also derives its leading technology from this model. Its VRDS-NEO VMK-3.5-10 drive mechanism now incorporates Esoteric’s advanced VS-DD servo driver for even smoother spindle operation.

Its dual mono DAC, also found in the K-01X, is configured with 4 individual converter circuits operating in parallel and summed to optimize linearity and minimize noise. It also employs Esoteric’s innovative 34-bit D/A processing algorithm.

With a pedigree extending directly back to the Grandioso D1, the K-03X is clear in its stunning sound quality, ease of use and wide functionality, including such recent developments as its DSD compatible USB interface.

USB Support for 2.5/5.6 MHz DSD, 384 kHz/32-bit PCM, and Asynchronous Transmission


The USB input supports asynchronous transmission and rates up to 2.8/5.6 MHz DSD and 384 kHz/32-bit PCM.

Esoteric’s original PC driver software achieves outstanding playback of even studio-master-quality source files. DoP and ASIO 2.1 are also supported.

VRDS-NEO “VMK-3.5-10” transport mechanism


Originally developed for the Grandioso P1, the VRDS-NEO drive mechanism achieves ultimate levels of transport accuracy.

Its high-precision turntable was specially designed to spin Super Audio CD/CD discs, radically improving reading accuracy by mechanically correcting for surface run-out.

To provide a comparable level of precision, the K-03X is equipped with the VRDS-NEO VMK-3.5-10 drive, placing Esoteric’ s superlative music reproduction capabilities within reach of an even greater number of music lovers.

The new addition of its VS-DD spindle servo driver further assures smoother high-precision servo control.

With its duralumin turntable and 10mm-thick turntable bridge, the unit’s massive weight of 4.4kg (11.2kg including its highly rigid base) is proof of the drive’s robust construction.

Other proven VRDS-NEO features include a high-flux-density magnet-driven coreless three-phase brushless spindle motor, high-precision thread feed control, and a shaft-sliding pickup that assures consistently perpendicular laser illumination.

VS-DD Spindle Servo Driver


The proprietary VS-DD spindle servo driver previously used only in Esoteric’ s top-end models is now made available to the K-03X.

Its discrete three-channel amplifier circuitry optimizes the waveform of the current supplied to the motor for quieter and smoother spindle operation and high-precision servo control.

Dual Mono D/A Converters Follow the Design Philosophy of the K-01X

Due to the exceptional performance of its D/A converters, the K-03X offers a level of sound quality on a par with the K-01X in terms of clarity and musical presence.

Its multiple DAC design philosophy, carried over from the Grandioso D1, allows extremely accurate digital to analog conversion.

This is exemplified by the outstanding linearity and low distortion achieved by the arrangement of 4 individual DAC circuits operated in parallel in each channel.

The K-03X uses the same AK4495S DAC chipset featured in both the Grandioso D1 and the K- 01X. To minimize noise, two large toroidal transformers supply power independently to the digital and analog circuits in each channel.

The excellent channel separation and stereo imaging of the K-03X’s converters provide listeners with a mesmerizing musical experience.



Disc types         Super Audio CD, CD (CD-R/CD-RW compatible)

Analogue Audio Outputs

XLR Connector (2ch) x 1; RCA connector(2ch) x 1

Output impedance XLR :40 Ohms; RCA 10 Ohms

Maximum output level (1kHz, full-scale, into 10k_ Ohms)

XLR (Gain: 0 dB): 4.8VrmsRCA: 2.4Vrms

Frequency response 5Hz to 40kHz (-3dB)

S/N ratio 116db

Total harmonic distortion 0.001% (1kHz)

Digital Audio Output

XLR connector ×1 3 Vp-p (into 110 Ohms_)

Digital Audio input

Coaxial RCA connector x 1 (input impedance 75 ohms)

Clock Sync input format

Connector BNC

Input impedance 75 Ohms

Input level Rectangle wave: equivalent to TTL levels; Sine wave: 0.5 to 1.0 Vrms (50 to 75 Ohms)


Power supply AC 220V, 60Hz

Power consumption 25W

External dimensions

(W x H x D, including protrusions) 445 ×162 × 438mm (17 1/4 × 6 3/8 × 13 1/4in)

Weight 28kg

Included accessories

Power chord

Remote control RC1301


Felt pads x 3

Owners manual

Warranty card













Pride and Mission of "ESOTERIC" They are to reproduce the Original Master Sound,

"The joy of the highest levels of musical elation." Their corporate philosophy, as their foundation, has been unremittingly developing excellent audio products to reproduce the original sound performed by musicians in studio or concert hall. Since the inception of TEAC corporation in 1953, audio equipment has gone through various phases of development. From analogue vinyl records to analogue tapes, CDs to Super Audio CDs in digital era, then streaming audio in nowadays, there have been undergoing several transitions and technical innovations in auditory media. ESOTERIC COMPANY, which was born in the midst of such transition, shall pursue a unique path as a high-end audio brand, by deploying Super Audio CD players equipped with the VRDS mechanism that has sublimated its original mechatronics technology, as well as D/A converters, network players, amplifiers, and clock generators. Despite changing times and whirlwind markets, there remain musical connoisseurs who are seeking true excitement. As long as there are such people, we shall with great care, develop and actively release new products, that improve upon the "state of the art," within each business category that we pursue. We believe this is our mission


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.