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1. Product Introduction
(1) Overview:
The K15 decoding headphone amplifier integrated machine adopts the same retro
structural appearance as the K15, aiming to complete the product line and provide
users with a higher cost-performance product.
The K15 features rich interfaces, including dual front and rear USB inputs,
coaxial/optical inputs, Bluetooth input, streaming, local USB input, balanced input,
RCA input, and 8 other input methods.
It uses a dual power supply design, with a built-in high-performance switching
power supply module and an additional DC port for connecting an external
higher-performance power supply.
The DAC is the world's first to use two newly reproduced AK4497S chips. The
headphone amplifier circuit retains the discrete circuit design of the K15 project,
with JE243G-JE253G transistor pairs.
Additionally, the K15 incorporates numerous high-end components: ACCUSILICON
low-phase-noise femtosecond crystal oscillators, Nichicon audio-specific
capacitors, ELNA brown coupling capacitors, Rubycon film capacitors, wafer
resistors, and Emerald solid-state capacitors.
(2) Supported Sampling Rates:
USB DAC Mode: Supports PCM 768K 32Bit, DSD512, and MQA Full Decode.
Coaxial Decoding Mode: Supports PCM 192K 24Bit and DOP64.
Optical Decoding Mode: Supports PCM 96K 24Bit.
Bluetooth Reception: Supports SBC/AAC/aptX/aptX LL/aptX HD/aptX
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