ESOTERIC releases the K-01, the flagship model of our all-in-one advanced D/A converter and Super Audio CD/CD player series, capitalizing on ESOTERIC's state-of-the-art technology and derived from our award winning P-01/D-01 series separates. It has been seven years since the debut of the original X-01, with its high-precision and high-rigidity VRDS-NEO SACD/CD transport mechanism. The X-01/X-03 series, which have stayed at the top of ESOTERIC's all-in-one SACD/CD player lineup, have been completely updated and make their debut as the all-new "K" series in November 2010. The design concept of the K series is extremely clear and simple -- a 2-channel D/A converter and stereo player that gives a stress-free musical experience, without adding or removing anything from the original source material. All aspects of the design and engineering process for the K series had extremely tough requirements to further advance ESOTERIC's top technology. Design and engineering was completed applying all of ESOTERIC's know-how in mechatronics technology, state-of-the-art audio technology, and evolutionary materials including DAC implementation, for which cost was not a consideration. The K series is committed to advancing the "state of the art" for the 2 channel audio purist, for both high resolution audio files and disc based audio playback applications.

The K-01 is equipped with our new VRDS-NEO "VMK-3.5-20S" mechanism, which has advanced substantially beyond existing VRDS models. The K-01 follows the philosophy of the D-01, and has two 32-bit monaural D/A converters with eight parallel/differential DAC circuits used per channel, as well as separate L/R power supplies. The on-board, high-precision clocking circuit has also been advanced. The power supply for each circuit block has been optimized by using four on-board power transformers. Three sets of 192 kHz/24-bit digital inputs, supporting the most advanced high-sampling-rate digital sources are also built-in. USB driver software supports 192 kHz/24-bit asynchronous transmission for connecting with a PC. The K-01 responds to the stringent demands of music lovers and audio purists, for a top-of-the-line digital source, 2-channel playback device.

Compatible disc types Super Audio CD, CD (CD-R/CD-RW compatible)
Jacks XLR jacks (2 channel) x 1
RCA jacks (2 channel) x 1
Output impedance XLR: 100 ohms
RCA: 47 ohms
Maximum output level
(1 kHz, full scale, 10 k ohms)
XLR (Gain: 0 dB): 2.45 Vrms
RCA: 2.45 Vrms
Frequency response 5 Hz to 55 kHz ( 3 dB)
Signal-to-noise ratio (S/N) 115 dB
Total harmonic distortion 0.0015% (1 kHz)
Digital audio output Coaxial RCA jack x 1 0.5 Vp-p/75 ohms
Digital audio input Coaxial RCA terminal x 1 (input impedance 75 ohms)
Optical digital terminal x 1 24.0 to 14.5 dBm peak
USB port B connector USB 2.0 / 192 kHz-24 bit async.
Word synchronization input format Jack 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
The K-01 can accept and synchronize to the following frequencies received from external clock devices: 44.1 kHz, 88.2 kHz, 176.4 kHz, 10 MHz (the accuracy of locking range limited within ±15 ppm)
D/A Converter K-01 32bit AK4399 x8 DACs / per channel
General Power supply AC 230 V, 50 Hz
AC 120 V, 60 Hz
AC 220 V, 60 Hz
Power consumption 33 W
External dimensions (W x H x D) 445 x 162 x 438 mm (17 1/4" x 6" 3/8 x 13 1/4") (including protrusions)
Weight 31 kg (68 3/8 lbs)
Accessories Remote control unit (RC-1156) x 1
Batteries (AA) x 2
Power cord set x 1
Felt pads x 3
Owner's manual x 1
Warranty card x 1
- This product is available in three different power supply variations shown in the chart above. Make sure that the voltage shown on the rear panel matches the AC line voltage in your area.
- The shape of the AC inlet and plug of the supplied power cord depends on the voltage rating and destination country.
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