Topping A30 Pro NFCA OPA1656 4PIN XLR 4.4MM 6.35MM Out

---------------------------------------------------------------------- [Precautions for Use of Electrical Appliances] 】 When using electrical appliances, please note that the voltage is different from that of Japan, which can cause malfunction. The plug type is Japanese type (A or B type), so please check the voltage and use a transformer. The transformer is different from the conversion adapter. A transformer is not required for USB power supply. We are not responsible for any malfunction caused by the use without a transformer. ---------------------------------------------------------------------- [Caution when purchasing used items] Please make sure to check the condition of the product in the product image. you cannot return used items unless there is a problem with using them. Please note that subjective returns such as There were more scratches than I expected cannot be accepted. ---------------------------------------------------------------------- [Precautions when purchasing by reservation] 】 In the case of pre-order items, they will be shipped after the release date in Japan, so we cannot deliver them on the release date. The release date is subject to change. Please understand that we may not be able to prepare products in very rare cases. ---------------------------------------------------------------------- [Precautions for purchasing adult products] Please confirm the target age. In some cases, customs clearance takes time and delivery may be sent. Please understand that there are rare cases where customs clearance is not possible, and in that case, it will be cancelled. ---------------------------------------------------------------------- A30Pro's THD+N is less than 0.00006%. That means A30Pro accurately restores 99.99994% of the original sound. The A30Pro is optimized for great single-ended performance using a new, specially redesigned NFCA-based circuit. Massively parallel high-performance audio operational amplifier architecture with UHGF technology provides superior DC and AC performance. A30Pro introduces a GND/LIFT switch as a solution. For normal use, set to GND. If you experience ground loop noise, switch to LIFT to change the A30Pro's ground point from the chassis to other equipment you connect to. Ground loop noise is gone. A30Pro is designed with sufficient quiescent current. If the headphone impedance is greater than 250 ohms, it is fully functional in Class A operation. A30Pro offers everything in a compact body including 4-PIN-XLR, 4.4mm and 6.35mm. D30Pro is the perfect DAC for A30Pro 4 XCS43198, which is a quad DAC sound. THD+N