Official-source product profile · L1

HiBy FD3 II

Compact desktop DAC and headphone amplifier with selectable Class A/AB amplification.

Evidence checked: 2026-10-11. Manufacturer/distributor documentation; no independent SoundPath Lab test.

What the documentation establishes

• Dual CS4302 is the spelling on the checked manufacturer store page.
• 3.5mm TRS/CTIA TRRS and 4.4mm balanced headphone outputs; 3.5mm/4.4mm line outputs.
• Manufacturer PCM decoding ceiling: 32-bit/768kHz.

Best for

A small desktop headphone and line-output system after checking the source input path.

Avoid if

You require a documented per-load power rating or confirmed television eARC.

Limits and unresolved details

The 1125mW headline lacks complete load/THD conditions and is not used as comparable rated power.

Support and purchase checks

Confirm the complete regional model, required cables and external components, current manual/firmware, local warranty and actual dispatch with the official channel. App and streaming-service support depends on current versions; paid services may require subscriptions. A planned release or an order button does not prove local stock.

Keep an existing system that already meets these connection and use requirements. No measured sound-quality upgrade, reliability score or automatic purchase recommendation is assigned.

Primary sources

• https://store.hiby.com/products/hiby-fd3-ii — checked 2026-10-11

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