Esoteric K-01X Super Audio CD/CD Player

code: TEACK-01X
£16,000.00 (FREE UK Delivery)
Item out of Stock  |  Usually dispatched within 24 hours
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A New Pinnacle of Sound Quality

Four years after the release of the K-01 - the world's leading all-in-one digital player - the new K-01X debuts as a more compact version of Esoteric's flagship Grandioso model. Utilizing the same type of highly rigid chassis construction as the Grandioso and a similar four-transformer power supply, it integrates the Grandioso P1's high-precision VRDS-NEO "VMK-3.5-20S" turntable with two independent monaural DAC units derived from the Grandioso D1 design, each configured with a parallel array of 8 individual converters, which are summed to optimize linearity and minimize noise.

Electronic circuitry has also been further improved with the latest technologies, including a new AK4495S DAC IC, an advanced 35-bit D/A processing algorithm, an HCLD buffer amp, a DSD-compatible USB interface, and a large, low phase noise clock, all ensuring the K-01X achieves the absolute pinnacle of sound quality.

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.

The culmination of Esoteric's most advanced mechatronics know-how, the VRDS system radically improves the reading precision of Super Audio CD/CD discs by mechanically correcting for surface run-out. The K-01X's VRDS -NEO VMK-3.5-20S drive also features two sets of specially selected ball bearings supporting a duralumin turntable constructed to micron-level accuracy, and a 20mm-thick steel turntable bridge. The combined mechanical structure weighs an impressive 5.2kg (12kg including the rigid base).

The drive employs proven Esoteric technologies, including a high-flux-density magnet-driven coreless three-phase brushless spindle motor, a thread feed control derived from the thinking behind the P-0, and a shaft-sliding pickup which consistently illuminates the disk with a precisely perpendicular beam of laser light. Additionally, the disc tray features a silent shutter mechanism* that further ensures the ultimate in operating precision.

* This mechanism closes the shutter when the tray is retracted, then mechanically locks it into place in the front panel to ensure a more secure environment that minimizes the effects of extraneous noise and airborne contaminants, etc. on sound quality.

At the heart of the VRDS-NEO drive is a spindle driven by Esoteric's proprietary VS-DD servo driver circuit. This uses a discrete three-channel amplifier to optimize the motor drive current, minimize vibration and provide ultra-smooth spindle operation and high-accuracy servo control. The K-01X is also equipped with a proprietary toroidal power supply that greatly enhances noise isolation.

The D/A converter uses the same design philosophy as our Grandioso D1. Incorporating Asahi Kasei Microdevices Corporation's 32-bit AK4495S DAC IC and MUSES 02 operational amplifier, this exceptional DAC uses 8 parallel/differential circuits with 16 outputs driving each channel to achieve outstanding linearity and low distortion.

Like the Grandioso D1, this D/A converter also features fully independent power transformers and power supply circuits for each channel to create a true dual mono configuration. The generous power supply capacity and total channel separation enabled by this arrangement provides excellent dynamics, with realistic stereo imaging and exceptional resolution of fine detail.

Technical Specifications:

Analog Audio Outputs

  • Connectors - XLR connector (2ch) ×1; RCA connector (2ch) ×1
  • Output impedance - XLR:40 Ohms ; RCA :10 Ohms
  • Maximum output level (1kHz, full-scale, into 10k Ohms) - XLR: 4.8Vrms RCA: 2.4Vrms (Output level drops 3dB for DSD data playback when DSD Filter is off)
  • Frequency response* - 5Hz to 40kHz (-3dB)
  • S/N ratio* - K-01X :117dB ; K-03X :116dB
  • Total harmonic distortion* - K-01X : 0.0006%(1kHz)

*Super Audio CD, XLR analog output

Digital Audio Output

  • XLR connector ×1 - 3 Vp-p (into 110 Ohms)
  • RCA connector ×1 - 0.5 Vp-p (into 75 Ohms)

Digital Audio Input

  • RCA connector ×1 (input impedance 75 Ohms) - 0.5 Vp-p
  • Optical digital connector ×1 - -24.0 to -14.5dBm peak
  • USB-B connector - USB 2.0 standard

Clock Sync Input Format

  • Connector - BNC
  • Supported input frequencies (±15ppm) - 44.1, 48, 88.2, 96, 176.4, 192kHz, 10, 22.5792, 24.576MHz
  • 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 230V, 50Hz ; AC 120V, 60Hz ; AC 220V, 60Hz
  • Power consumption - K-01X:27W
  • External dimensions (W x H x D, including protrusions) - 445 ×162 × 438mm (17 1/4 × 6 3/8 × 13 1/4in)
  • Weight - K-01X: 31kg (68 3/8 lbs)

Included Accessories

  • Power cord set ×1 / Remote control (RC-1315) ×1 / Batteries for remote control (AAA) × 2 / Felt pads × 3 / Owner's manual × 1 / Warranty card × 1

We endeavour to despatch same day for orders placed up to 2pm on available stock items (items with stock message "Usually dispatched within 24 hours"). Please remember to check with us first for a physical stock check if next day delivery is important to you. Any items with stock message "Usually dispatched within 72 hours" are items that we do not hold in stock but order in from the importer or manufacturer as soon as a customer order is recieved. Occasionally these may be delayed beyond 72 hours due to importer/manufacturer stock levels but we will inform you as soon as we can if this is the case.

UK ORDERS:  We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Non Mainland locations - Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland may take a day or so longer and are not Free of Charge. Smaller items are delivered using Royal Mail recorded delivery or special delivery. Larger items are delivered using a courier service such as Interlink Express, DPD, UPS or DHL. 

INTERNATIONAL ORDERS: We offer competitive rates which can be confirmed by email. Please just ask – we will need a full delivery address and telephone number. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using DPD, DHL or UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Turntableworld or by the courier with a request for any further information required. Customs duties do not apply for shipments into any EU country (for a full list please refer to the EU Country List). Customs duties can apply for countries outside of the EU. Customers in these countries are responsible for all taxes and duties incurred when the items enter their country.

COLLECT IN STORE OR HOME INSTALL:At the request of the manufacturer some items cannot be supplied by mail order but you can click and buy them and then elect to collect them from our store or arrange a home install (if applicable). Applicable items clearly state that they are Collect in store or home install. Once ordered you will receive a message prompting you to contact us by phone or email to arrange for us to deliver and install or to reserve and collect from our store at your convenience, you will also be advised of the delivery time / stock availability as not all Home install / collect in store items are held in stock. 

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