Dossier — FiiO QX13
The brochure speaks; the silicon answers. What follows is what each has said.
+ Vendor page › +Claims breakdown
| Claim | Bucket | Witnessed | Verdict |
|---|---|---|---|
| PCM 32-bit / 768 kHz | PCM | Alt 1, Subslot 4 — 32-bit PCM. Sample Rates Supported (kHz): 44.1 48 88.2 96 176.4 192 352.8 384 705.6 768Alt 2, Subslot 2 — 16-bit PCM. Sample Rates Supported (kHz): 44.1 48 88.2 96 176.4 192 352.8 384 705.6 768 | ✓ Match |
| Native DSD512 | DSD | Alt 3, Subslot 4 — Type-1 RAW 1-bit DSD. Sample Rates Supported (kHz): 44.1 48 88.2 96 176.4 192 352.8 384 705.6 768 (DSD64 to DSD512) | ✓ Match |
| MQA full decoding | Silent | MQA is a licensed decoding stage riding PCM frames; the USB descriptor witnesses only format, depth, and rate, and cannot see it. | — Silent: claims unwitnessable by descriptor |
Remarks
A clean concordance on every count. FiiO specs the QX13 at PCM 32-bit / 768 kHz and native DSD to DSD512, and the silicon descriptor witnesses precisely that reach — the PCM alts stop at 768 kHz, the raw DSD alt at DSD512, neither overshooting to flatter nor falling short to fault.
Here the vendor names the transport outright — native DSD, not DSD-over-PCM — and the descriptor confirms it: a Type-1 raw DSD alt carries the bitstream to DSD512 without decimation. Claim and silicon speak with one voice.
+ See the full Concordance +