Seattle Area. May 12, 2023. #1. This is a review and detailed measurements of the Topping A70 Pro balanced headphone amplifier and preamplifier. It was sent to me by the company and costs US $499. Like its companion DAC, the D70 Pro Sabre, the A70 Pro sports the gorgeous and highly responsive display (which can be set to above or graphic VU and ... More @Wikipedia
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