TOPPING A90 Discrete Fully Dirscrete Balanced Headphone Amplifier NFCA 2 Gain Settings 4Pin XLR /4.4 Balanced/6.35mm SE Output Pre-amplifier
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As its name, A90 Discrete uses fully discrete components toredesign the NFCA (Nested Feedback Composite Amplifier)module. 4 built-in NFCA-Discrete modules which each themuses 39 transistors build up fully balanced structure.Theoptimized Voltage Current hybrid feedback architecturealong with UHGF (Ultra High Gain Feedback) technologyprovide excellent DC and AC performance. Benefiting fromthe new design, the output capability is stronger than ever,which allows the amp driving low impedance headphoneseven more effortlessly. The paralleled ultra low noiseprecision matched transistors in the design ensured theunparalleled distortion and noise performance.
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Given the amount of shipping partners we work with and the vast coverage area we serve, there are likely regions with much longer transit times than others. If you have any feedback, suggestions, or problems with the courier of your shipment, please feel free to submit a support ticket via the "Contact Us" button below.
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PO boxes or APO/FPO
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Estimated Delivery Time
For customers in the continental United States:
5 to 14 business days from the date of shipping
For customers in Hawaii and Puerto Rico:
2 to 4 weeks from the date of shipping
International customers can expect longer shipping times, depending on the country in which they live:
Canada: 1 to 3 weeks from the date of shipping
Australia, New Zealand, Germany, France, and the UK: 2 to 4 weeks from the date of shipping
Other countries not listed above: 3 to 6 weeks from the date of shipping
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Easy 30-Day Return Policy
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Please read conditions below. If all conditions are not met, SHENZHENAUDIO reserves the right to refuse the return. All returned items must be in new condition, in their original unaltered box (including an intact UPC code) and must include all packing material, blank warranty cards, manuals and accessories. SHENZHENAUDIO can only refund the original purchase price. Shipping and handling fees are nonrefundable.
Defective or Damaged Items
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Refunds & Credits
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You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
ShippingTo return your product, you should mail your product to: 4F 405, Building F, No.2 Shangxue Science and Technology North, Bantian Street, Longgang Dist, ShenZhen, 518129 Guangdong, China
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