Esoteric Super Audio CD Player K-07 - Manual (Page 2)

Horizontal movement
Pickup Lens
Guide pin
at center
Magnet for pickup
floating x 2
Vertical movement
Shaft-mounted laser pickup assembly
VOSP Mechanism
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.
Dual mono D/A converters based on the concept of the K-01
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.
High quality buffer circuits
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 capacity toroidal transformer
that handles high speed transients with ease
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.
Multiple D/D functions to suit multiple sources
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.
Digital filter “Off” mode and four types of digital filters
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.
Three systems of high sampling rate digital inputs
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.
USB input supports asynchronous transmission 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.
VCXO high-precision clock
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.
Clock sync function supporting 10 MHz to synchronize
with an external device
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.
Supports “Direct Master Clock Link”
with an external clock generator
“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.
Excellent usability
- 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
ESOTERIC COMPANY
1-47 Ochiai, Tama-shi, Tokyo 206-8530, Japan
Fax: (042)356-9240
www.esoteric.jp
www.teac.com/esoteric/
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
Compatible disc types (playback) Super Audio CD, CD (including CD-R and CD-RW) Analog audio outputs Connectors XLR connector (2ch) x 1, RCA connector (2ch) x 1 Output impedance XLR : 100 Ω, RCA : 25 Ω Maximum output level (1
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) Digital audio output RCA connector x 1 0.5 Vp-p (into 75 Ω) Optical
digital connector x 1 -24.0 to -14.5dBm peak Digital audio input 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 Clock sync input format Connector
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)
General 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.