Carat-SAPPHIRE is Styleaudio’s newest model which was designed under our new slogan of ‘Let’s make the only high end miniature.’ As usual, Styleaudio took the verified parts from ‘SANYO OSCON’, ‘VISHAY DALE’, ‘JAPAN NISE’ for SAPPHIRE and PCM1792(A) of ‘Burr Brown’, CS8416 of ‘Cirrus Logic. Also OPA827 from TI and OPA604 of Burr Brown are used for OPAMP part with the very professional know-how of Styleaudio.

 Highest pulse transformer from Scientific Conversion, toslink terminal from Toshiba, custom made RCA plug and brass spike also help SAPPHIRE to raise its artistic presentation. In order to minimize any interference between digital-part and analog-part, Styleaudio took copper plate block and 24K gold coated PCB. Styleaudio believes all these efforts to achieve the most value of SAPPHIRE.

 
MAIN DIGITAL DEVICE

 

The combination of PCM1792(A), Burr Brown and CS8416, Cirrus Logic is the main digital processing. It is sampling upto 24bit/192Khz as it is from digital input without any other forced up-sampling via the shorted path.

HEXAD OPAMP

 SAPPHIRE is designed HEXAD OPAMP style which are combined with three single OPAMP for each left and right analog out part, total six single OPAMP. Styleaudio is using OPA604, Burr-Brown and OPA827 (different from AD827) for HEXAD design and copper plate bock can isolate left and right for balanced design.

 
CUSTOM BRASS SPIKE

 Normally many DAC products have rubber foot or plastic foot, but SAPPHIRE has custom brass spike which is used for anti-vibration for high end audio components. Our brass spike is working double vibration prevention with the design of two floors of brass with black nickel coating and polyurethane foot.

HIGH END PULSE TRANSFORMER FOR DIGITAL COAXIAL INPUT

 To perform high end audio quality, it is necessary to isolate signal with pulse transformer. However, among many DAC products, it is easy to find products which very low end transformer or without transformer. Styleaudio took the most high end transformer from Scientific Conversion for SAPPHIRE.

 COPPER PLATE & 24K-GOLD COATING PCB

 Using copper plate block, it is possible to isolate between digital part and analog part, and between left/right analog output. Also 24K double face gold coating PCB can produce the maximized performance of each part.

CUSTOM CUTTING RCA PLUG & FIBER OPTIC TOSLINK TERMINAL

 SAPPHIRE has custom cutting RCA plug which is normally used for very high end product and Fiber Optic Toslink from Toshiba for digital input optical.

SPECIFICATION OF MAIN CHIPSET

 1) Main DAC : Burr Brown PCM1792(A)

                           - 24Bit / 192Khz sampling, 132dB SNR Highest Performance DAC

                           - Dynamic Range : 132dB(9Vrms), 129dB(4.5Vrms), 127dB(2Vrms)

                           -THD+N : 0.0004%

                           - Sampling Frequency : 10Khz to 200Khz

                           - 8x Oversampling Digital Filter

2) Digital Controller : Cirrus Logic CS8416

                           - 32Khz to 192Khz Sample Frequency Range

                           - Low Jitter clock recovery

3) OPAMP           - Output        : TI OPA827 x 2pcs

                           - I/V                         : Burr Brown (TI) OPA604 x 4pcs

4) Digital Input                       - Coaxial x 1, Optical x 1

5) Sampling Frequency            - 32Khz to 192Khz

6) Frequency response                       - 20Hz ~ 24Khz upper

7) THD + N                                         - 0.005%

8) Max Audio Line Output                    - 2.2vrms

9) Body dimension (WxHxD/mm)         - 75 x 35 x 131 (including spike)

10) Recommended aging time              - Min 50 hours

11) Including package                          - Main product, user manual, coaxial cable, adapter