Esoteric K-07 プリント

Horizontal movement

Pickup Lens

Guide pin 

at center

Magnet for pickup

floating x 2

Vertical movement

Shaft-mounted laser pickup assembly

VOSP (Vertically-aligned Optical Stability Platform), features a 

specially designed shaft-mounted laser pickup assembly. This pickup 

design ensures that the laser optical axis is always at the center of 

the data track for highly accurate data reading. This pickup system is 

widely used in the ESOTERIC SACD transports and players including 

the reference level products, the P-02 and the K-01. The VOSP 

mechanism is rigidly clamped by a steel plate and a large diameter 

stabilizer made of 8mm-thick steel for superior anti-resonance and 

anti-vibration properties.

The analog output circuit of the D/A converter has both high end 

resolution as well as natural and musical texture. Asahi Kasei’ s 

32–bit DAC device “AK4392” is used. This component provides the 

heart that drives the expressive power of ESOTERIC’ s "K” series 

products. A parallel/differential output where two circuits combine 

per channel provides high linearity and low noise. The converters 

and analog output circuits, which make up a fully dual mono 

configuration, are located on the left and right hand sides of the 

board, completely separated from the digital signal processing 

circuit. This layout allows an excellent channel separation and 

high-quality playback with rich localization and sonic depth.

For the final stage of analog audio output (buffer amplifier), New 

JRC’ s high end audio operational amplifier MUSES is used. These 

buffer circuits are laid out symmetrically for each of the hot/cold 

signal lines to construct a fully balanced configuration. When the 

RCA audio output is selected, the buffer amplifier is switched to 

parallel configuration. These enhancements provide the best sound 

quality for each of the balanced and unbalanced audio signal outputs.

Large toroidal transformer features low noise, low distortion, and 

high current with very high efficiency. The strong power circuits, 

combined with very large power capacitors, supply stable and clean 

power to all circuits.

In addition to playback at the original sample rate and word length, 

extensive D/D conversion modes for PCM formats include PCM up 

conversion to x 2 or x 4 from the original sampling frequency, using 

the “RDOT” algorithm, as well as PCM > DSD conversion to convert 

the PCM audio signal to DSD format similar to Super Audio CD. Super 

Audio CD is directly converted into analog signals and played back.

The K-07 features Digital Filter Off mode recommended by 

ESOTERIC, which is characterized by a smooth and subtle sound 

quality. The model also features four types of digital filters for PCM 

signal processing. In addition to two types of FIR (Finite Impulse 

Response) digital filters, two types of Short Delay digital filters 

(Referred to as “apodizing” filters) are installed. These filters 

eliminate the pre-echo in the impulse waveform to reproduce audio 

signal as a more natural and precise sound.

The K-07 features three systems of digital inputs (USB, coaxial and 

optical), and these digital inputs support high-sampling-rate sources 

up to 24 bit / 192kHz.

The USB input supports asynchronous transmission up to 24 bit / 

192kHz using the ESOTERIC’ s original driver software for PC or 

MAC. Additionally, a USB isolator, which prevents noise from 

entering from external sources such as PC or MAC, allows high 

quality reproduction of studio master quality sources.

A high-precision VCXO (voltage controlled crystal oscillator) is used 

for the internal clock circuit. A dedicated stabilized power supply 

circuit improves the stability of the clock. The high precision audio 

clock signal generated by the VCXO is directly delivered to the dual 

mono D/A converter. This enables higher quality reproduction, 

substantially reducing jitter.

This function allows upgrading to a higher quality sound system by 

connecting the unit to a high precision master clock generator when 

playing back Super Audio CD/CD. A 10 MHz clock is supported in 

addition to WORD clock (44.1kHz to 176.4kHz). When the unit is in 

D/A converter mode, asynchronous USB connection supports clock 

sync function.

“Direct Master Clock Link” is our new technology originally 

developed for the P-02/D-02 combo for more precise, direct clocking. 

With this technology, the D/A converter simply uses ultra high 

precision “master clock (22.5792MHz)” supplied from external 

master clock, without a need of “sync” its operation to the master. 

This system enables shorter-path clocking by bypassing internal PLL 

circuit, and delivers more precise, focused imaging.

- 32-bit precision digital attenuator function

- User selectable output level adjustment of the XLR audio output 
  (0 dB/

＋6 dB）

- XLR pin assignment can be changed to match external devices 

  (Pin 2 Hot or Pin 3 Hot)

S u p e r   A u d i o   C D   P l a y e r    

K - 07

PRINTED IN JAPAN 0212O05

•TECD - 0149

1-47 Ochiai, Tama-shi, Tokyo 206-8530, Japan
 Fax: (042)356-9240  

Please note that Esoteric products are available at limited distributors in respective countries.
" ESOTERIC " is a trademark of TEAC Corporation, registered in the U.S. and other countries.
©2012 TEAC Corporation. All Rights Reserved. All text, images, graphics and other materials on this catalogue are subject to the copyright and other intellectual
property rights of TEAC Corporation. These materials shall not directly or indirectly be published, reproduced, modified or distributed in any medium.
Design and specifications are subject to change without notice." Super Audio CD " and “DSD” are registered trademarks.
Other company names and product names in this document are the trademarks or registered trademarks of their respective owners.

Specifications

Connectors XLR connector (2ch) x 1, RCA connector (2ch) x 1 Output impedance XLR : 100 

Ω, RCA : 25 Ω

kHz, full-scale, into 10 kΩ) RCA: 2.45 Vrms, XLR (set to 0 dB): 2.45 Vrms Frequency response 5 Hz to 55 kHz (- 3 dB) S/N ratio 115dB Total harmonic distortion 0.0015% (1 kHz)  

RCA connector x 1 0.5 Vp-p (into 75 

Ω) Optical 

digital connector x 1 -24.0 to -14.5dBm peak 

RCA connector x 1 (input impedance 75 Ω) 0.5 Vp-p Optical digital connector x 1 -24.0 to -14.5 dBm peak USB-B connector USB2.0 standard 

BNC Supported input frequencies (±15 ppm) CD/SACD: 44.1, 88.2, 176.4, 100 kHz / 10, 22.5792 MHz, USB (HS_2) input: 44.1, 48, 88.2, 96, 176.4, 100, 192 kHz / 10, 22.5792, 24.576 MHz Input impedance 75 Ω Input level Rectangle wave: equivalent 
to TTL levels, Sine wave: 0.5 to 1.0 Vrms (50 to 75 Ω) 

Power supply AC 230 V, 50 Hz / AC 120 V, 60 Hz / AC 220 V, 60 Hz Power consumption 12W External dimensions (W x H x D, including protrusions) 445 mm x 131 mm x 358 mm (17 

1/2" x 5 1/8" x 14 1/8") Weight approx. 14 kg (30 7/8 lb) Included accessories Power cord set x 1, Remote control (RC-1301) x 1, Batteries for remote control (AAA) x 2, Owner's manual x 1, Warranty card x 1

- This product is available in three different power supply variations shown in the specification section 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.