Carat - Sapphire was designed under Styleaudio's new slogan of "Let's  make the only high end miniature."
Styleaudio puts in all these efforts to achieve the most value of  SAPPHIRE.

So the best way to do, Styleaudio takes copper plate block and 24K gold  coated PCB to minimize any interference between digital-part and  analog-part.
They use 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.

Carat - Sapphire has features as follow.
   - MAIN DIGITAL DEVICE
   - HEXAD OPAMP
   - CUSTOM BRASS SPIKE
   - HIGH END PULSE TRANSFORMER FOR DIGITAL COAXIAL INPUT

Specification 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 Digital Controller : Cirrus Logic CS8416        - 32Khz to 192Khz Sample Frequency Range        - Low Jitter clock recovery OP AMP        - Output : TI OPA827 x 2pcs        - I/V : Burr Brown (TI) OPA604 x 4pcs Digital Input: Coaxial x 1, Optical x 1 Sampling Frequency: 32Khz to 192Khz Frequency response: 20Hz ~ 24Khz upper THD + N: 0.005% Max Audio Line Output: 2.2vrms Body dimension (WxHxD/mm): 75 x 35 x 131 (including spike) Recommended aging time: Min 50 hours Including package: Main product, user manual, coaxial cable, adapter 　   ::: Shipping & Handling We ship to the address provided by Paypal. All items are shipped from South Korea via Expedited Rate Shipping Service (EMS) and Standard Shipping Service as Registered Airmail. Expedited Rate Shipping takes 2 ~ 6 days for arrival normally.   - Oceania: 3~6 working days/ Asia: 3~8 working days/ North America: 3~6 working days/ South America: 10~60 working days/ Europe: 4~12 working days/ Russia: 6~24 working days/ Israel: 8~12 working days Standard Shipping takes 11 ~ 30 days for arrival normally.   - USA :9~20days/ United Kingdom :10 ~22 days/ Australia :8~29days/ France :11~33days/ Germany :10~22days/  Russian Federation :10~29 days/ Canada : 13~25 days/ Singapore:10~20days/ Brazil : 10~40days Holidays and weekends are excluded from the Shipping Days. Delivery can be delayed due to Custom Clearance. The delay is not a seller's responsibility. Free Express for Italy is not available. We have to ship it via EMS Premium, Fedex and DHL. There will be an extra shipping cost.   ::: Payment We ONLY accept Visa, Master Card, Discover, American Express through Paypal only. If you don't have a Paypal account you can still check out through Paypal as a guest by using your credit card.         ::: Return Policy Please notify us within 14 days of receiving. Return items MUST be the original unused condition included all packaging and tags. Due to the nature of the products this item is non-refundable and goods which were used cannot be returned. You will receive a refund for the cost of the merchandise after the returned items received. (Shipping and handling Charges are not refundable) If you received the wrong item, please let us know to resolve the problem. We will exchange it to correct item. All returns should be discussed and agreed upon with us in advance.   ::: Customs & Duties Customs duties, taxes and charges are not included in the item price or shipping cost. These expenses are the buyer's responsibility. Please check with your country's customs office about these additional costs before bidding or buying.   ::: Feedback We leave feedback immediately after receiving your full payment. Please also leave us your feedback and 5 stars DSR when you are satisfied with your items. Your kind support will be highly appreciated by us and keep us moving forward.   ::: Contact Us If you have any problems, we are very glad to help you. The actual color and shape may looks a little different from pictures because of the technical improvement and the condition of photograph shooting.