2008 July, New USB DAC is coming from Styleaudio...
CARAT-PERIDOT
24bit, 192KHz / 1.5ppm TCXO / 300 ohm Headphone accepted
CARAT-PERIDOT is a higher model of CARAT-HD1V and the first model of JEWEL series which is premium line of Styleaudio.
As a succeeding model of CARAT-HD1V which is successful to be introduced as a Hi Fi Audio-DAC which was designed with professional Audio components such as OSCON, WIMA, TCXO and Vishay-Dale, CARAT-PERIDOT is also developed with the best components in higher density design. Especially its audio quality and output level are upgraded much more than HD1V. It is a real “Hi Fi Audio DAC & Headphone AMP”.
PERIDOT is able to work without separate power adapter and not a big size to take out easily. User can listen the digital music with PERIDOT with personal computer and CAR PC in a car. USB control chipset was changed and also possible to work “Play & Plug”. The recommended headphone impedance of PERIDOT is 24ohm~300ohm.
1. Like a planning new city
Our design philosophy is very similar to plan a
new city.
For example, there’s no factory in the middle of residence town. Same as this, PCB designers should consider also with this kind of view point. PERIDOT is designed with 4 different parts such as Input, Digital covert, Main Power and Analog. We designed these 4 different areas separately and also isolate ground in circuit design. This effort can minimize a possibility which could make any interference each other between different function-parts. For this, PERIDOT take independently shield DC-DC converter.
2. Best solution for PC Fi
There are more and more users who want enjoy digital music source. And also they would like to connect their personal computer with Hi Fi audio components. Therefore we must consider about safety of audio components which could be connected to our product. Even though the external DAC is much safer theoretically rather than internal sound card, PERIDOT take a circuit of “DC blocking”, which user can keep their audio components more safe.
3. No need separate power adapter
PERIDOT can work without additional power adapter. However if users want to use additional power adapter because their personal computer does not have stable USB power, user can use additional power adapter also. PERIDOT was designed with “Power Filtering” which is filtering power from power input. For this PERIDOT has a special circuit with inductor from TDK.
4. Best components
For the open, close & selecting of analog signal, PERIDOT takes a traditional relay control method, not “IT components” such as selecting semi-conductor. PERIDOT takes a product from JAPAN NISE which was selected by very high level audio products. For even small SMD components, PERIDOT takes F-level resistors & J-level condensers. All the electric condensers are from OSCON and all film condensers are from WIMA.
Same as HD1V, PERIODOT also has 1.5ppm TCXO. As all the audiophile may know, TXCO is normally used to thousands dollar’s audio products. We believe this could affect many positive audio feeling.
6. 300 ohm headphone accepted
PERIDOT can filter unnecessary noise from input part of headphone AMP and was designed like an independent headphone AMP. Fo44r OP AMP, PERIDOT has OPA2134 from TI and also there is OPA2604 from TI for output. Specially output level is 2Vrms which is same level of Hi Fi level CD player or Hi Fi DAC, which was asked by many users to HD1V. The recommended headphone impedance of PERIDOT is 24ohm ~ 300ohm.
7. Aluminum volume knob
PERIDOT has aluminum volume knob instead of plastic which was used in HD1V. This aluminum knob can upgrade its position to higher position. Also it has green color LED which can be imagined to PERIODT.
8. OS circumstance
Mac OS ‘tm’ 9.1 or later Japanese/English edition
Mac OS X 10.0 or later English edition
Mac OS X 10.1 or later Japanese edition SP
Microsoft Window 2000 Professional, XP, V
ista
9. Digital Chipset specification
DA converter :
Texas
Instruments PCM1793- 24bit / 192Khz sampling, 8x oversampling digital filter
- Dynamic range : 113dB, THD+N : 0.001%
USB controller :
Texas
Instruments PCM2707- Full speed tranciever (Real audio 1.1)
- I2S, 32, 44.1, 48KHz / 16Bit Delta-Sigma stereo
10. Contents
1 x CARAT-PERIDOT
1 x USB Cable
4 x Robber foot
1 x User’s manual
1 x DC 5V power adapter
11. Size comparison
CARAT-UD1 : 75 mm (W) x 30 mm (H) x 109 mm (D)
CARAT-HD1V : 75 mm (W) x 30 mm (H) x 109 mm (D)
CARAT-PERIDOT : 75 mm (W) x 30 mm (H) x 126 mm (D)
Question
Ted : leetaewoo@digital-go.com
