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Front Row Theater

Front Row Theater

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Esoteric Super Audio CD/CD Player

Model #: K-01Xs

At a Glance

The K-01Xs features the K series’ classic construction with a high-rigidity chassis and a total of four power transformers in the power section, along with the high-precision VRDS-NEO[VMK-3.5-20S]turntable system used in the Grandioso P1/K1 and a pair of differential 8-circuit/channel monaural DACs following the latest DAC platform developed for the K1.

WarningProposition 65 Warning for California Residents
Esoteric Super Audio CD/CD Player

Specifications

Playable Disc TypesSuper Audio CD, CD (including CD-R and CD-RW)

Digital Audio Outputs

XLR Connector x 1Output level: 3 Vp-p (into 110 Ω)
RCA Connector x 1Output level: 0.5 Vp-p (into 75 Ω)

Digital Audio Inputs

RCA Connector x 1 (input impedance 75 Ω)Input level: 0.5 Vp-p
Optical digital connector x 1Input level: -24.0 to -14.5 dBm peak

Clock Input

BNC connector1
Input impedance50Ω
Frequencies that can be Input (±10ppm)44.1, 48, 88.2, 96, 176.4, 192kHz, 10, 22.5792, 24.576MHz
Input LevelRectangle wave: equivalent to TTL levels; Sine wave: 0.5 to 1.0 Vrms (50 to 75Ω)

General

Power SupplyAC 220-240V, 50/60Hz; AC 120V, 60Hz; AC 220V, 60Hz
Power Consumption35W
External Dimensions (W x H x D, including protrusions)445 × 162 × 438mm (17 5/8″ × 6 1/2″ × 17 1/4″)
Weight31 kg (68 3/8 lbs)

General Specs

Product Weight (lbs.)68.38
Width (in.)17.63
Depth (in.)17.25
Height (in.)6.50
ColorSilver

Analog Audio Outputs

XLR/ESL-A Connector1 pair (L/R)
RCA Connector1 pair (L/R)
Output ImpedanceXLR: 84Ω; RCA: 37Ω
Maximum Output Level (at 1kHz, 10kΩ load)XLR: 5Vrms; RCA: 2.5Vrms
Frequency Response5Hz to 55kHz (-3dB)
S/N Ratio120dB
Distortion0.0008% (1kHz)

Included Accessories

Power Cord1
HDMI Cable1
Remote Control Unit (RC-1301)1
Batteries for Remote Control (AAA)2
Felt Pads3
Owner's Manual1
Warranty Card1

Esoteric Super Audio CD/CD Player

Model #: K-01Xs
231346
Esoteric

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At a Glance

The K-01Xs features the K series’ classic construction with a high-rigidity chassis and a total of four power transformers in the power section, along with the high-precision VRDS-NEO[VMK-3.5-20S]turntable system used in the Grandioso P1/K1 and a pair of differential 8-circuit/channel monaural DACs following the latest DAC platform developed for the K1.

Get to know this product.

Its extensive specifications are the gold standard in digital players, including the latest DAC (IC AK4497), a 35-bit D/A processing algorithm developed with Esoteric’s patented proprietary technology; an HCLD buffer amplifier; DSD-compatible USB and a large custom low phase noise clock.

VRDS-NEO “VMK-3.5-20S” Mechanism

8 32-bit (AK4497) DAC circuits per channel

35 bit processing algorithm

Tray Shutter

USB Support for 2.8/5.6/11.2/22.5 MHz DSD and up to 786/32-bit PCM

VRDS-NEO [VMK-3.5-10]

Packed with Esoteric mechatronics, the VRDS uses a turntable to rotate CDs and Super Audio CDs, and mechanical correction of surface vibration is used to dramatically improve reading precision. Featured in the K-01Xs, the VRDS-NEO [VMK-3.5-20S] uses a pair of specially selected high-precision ball bearings for the spindle bearing as well as a duralumin turntable accurate within microns and a 20mm-thick steel turntable bridge. The weight of the transport unit is 5.2kg (12kg including the rigid base). It features a range of classic mechanisms including the coreless three-phase brushless spindle motor driven by a strong magnet and the VS-DD (VRDS Spindle Discrete Driver) . These are combined with a shutter mechanism* in the tray to provide the ultimate precision.

New Dual Mono D/A Converter

The D/A converter section was created based on the latest platform used in the Grandioso K1, with the very finest premium materials and circuit technology added to take it to the highest level of sound quality. The AK4497 32-bit premium DAC device from Asahi Kasei Electronics is combined with a high-quality operational amplifier MUSES 02. The K-01Xs has 8 circuits per channel parallel/differential circuit structure for powerful linearity with minimal distortion. The circuit patterns of the DAC's power section have been further improved, with independent left and right power transformers in the K-01Xs to achieve a clean and highly stable power supply. Both the digital and analog circuits have more thorough isolation than previous models, achieving true-to-life playback with outstanding purity and superb sound stage depth.

Esoteric-HCLD (High Current Line Driver): Esoteric's Exclusive Output Buffer Delivers Powerful Signal Transmission

The ability to produce comparatively large currents and high slew rates are two of the most important factors that enable an analog output circuit to accurately transmit the wide dynamic range of a music signal without degradation. The K-01Xs offers the ultimate performance as a line driver by adopting high-performance elements with a high current output and exceptionally fast slew rate (2,000V/μs) for excellent response speed. Two of these buffer circuits are employed per channel. By configuring them differentially to drive the XLR outputs and in parallel to drive the RCA outputs, the available instantaneous output current is maximized. By maximizing instantaneous current output, the K-01Xs reproduces the full dynamics of music with breathtaking realism.

"ES-LINK Analog" Method for High Quality Current Transmission

In addition to regular line connections (XLR and RCA), the K-01Xs features Esoteric's new "ES-LINK Analog" transmission method. This is a current transmission method that utilizes the high performance of the HCLD buffer circuit and its enhanced ability to supply high-speed current. This is the ideal analog audio transmission as it is free from signal route impedance, thus fully maximizing the system's potential when connected to a compatible device. (A standard balance cable (with an XLR terminal) is used for connections, but the "ES-LINK Analog" method is a proprietary transmission method which can only be used with compatible devices.)

Wide Range of D/D Conversion According to Source

In addition to the original Fs playback, this series has a function for up-conversion of PCM digital signals by 2x, 4x, 8x or 16x (maximum 768kHz). It also features a PCM > DSD conversion function using a proprietary algorithm. DSD is up-converted to 22.5MHz. The unit also features a DSD digital filter that can be turned on or off as desired.

Digital Inputs

Three digital inputs (USB, coaxial, and optical) enable connection to a wide range of systems. Coaxial and optical inputs support DSD 2.8 MHz (DoP) input and PCM of up to 192 kHz/24-bit.

USB Audio Interface Compatible with DSD22.5MHz, PCM768kHz/32bit and Asynchronous Transmission

The unit is equipped with a USB port enabling connection to a computer. The driver and playback software (Esoteric HR Audio Player) can be downloaded from the Esoteric website. The unit supports asynchronous transmission and a high sampling playback of DSD22.5MHz and PCM768kHz/32bit, and even enables high-quality playback of studio master quality sources. In addition to conventional asynchronous transmission methods, it supports the new Bulk Pet method for an even wider range of tone selection.

High-Precision VCXO Clock

The clock circuit supplies a high-accuracy reference clock signal to the digital circuitry. The Grandioso Custom VCXO (voltage-controlled crystal oscillator) is a high-precision custom clock that utilizes a large crystal element to ensure exceptional sound quality with excellent center accuracy (±0.5ppm) and extremely low levels of phase noise.

Specifications

General Specs

Product Weight (lbs.)68.38
Width (in.)17.63
Depth (in.)17.25
Height (in.)6.50
ColorSilver

Specifications

Playable Disc TypesSuper Audio CD, CD (including CD-R and CD-RW)

Analog Audio Outputs

XLR/ESL-A Connector1 pair (L/R)
RCA Connector1 pair (L/R)
Output ImpedanceXLR: 84Ω; RCA: 37Ω
Maximum Output Level (at 1kHz, 10kΩ load)XLR: 5Vrms; RCA: 2.5Vrms
Frequency Response5Hz to 55kHz (-3dB)
S/N Ratio120dB
Distortion0.0008% (1kHz)

Digital Audio Outputs

XLR Connector x 1Output level: 3 Vp-p (into 110 Ω)
RCA Connector x 1Output level: 0.5 Vp-p (into 75 Ω)

Digital Audio Inputs

RCA Connector x 1 (input impedance 75 Ω)Input level: 0.5 Vp-p
Optical digital connector x 1Input level: -24.0 to -14.5 dBm peak

Clock Input

BNC connector1
Input impedance50Ω
Frequencies that can be Input (±10ppm)44.1, 48, 88.2, 96, 176.4, 192kHz, 10, 22.5792, 24.576MHz
Input LevelRectangle wave: equivalent to TTL levels; Sine wave: 0.5 to 1.0 Vrms (50 to 75Ω)

General

Power SupplyAC 220-240V, 50/60Hz; AC 120V, 60Hz; AC 220V, 60Hz
Power Consumption35W
External Dimensions (W x H x D, including protrusions)445 × 162 × 438mm (17 5/8″ × 6 1/2″ × 17 1/4″)
Weight31 kg (68 3/8 lbs)

Included Accessories

Power Cord1
HDMI Cable1
Remote Control Unit (RC-1301)1
Batteries for Remote Control (AAA)2
Felt Pads3
Owner's Manual1
Warranty Card1
WarningProposition 65 Warning for California Residents