FiiO K13 Review: Output Power, SNR and THD Against Its Peers

Name: FiiO K13 Review: Output Power, SNR and THD Against Its Peers
Item: FiiO K13

FiiO K13 (DAC/Amp), reference price $320, maker-rated output power 2400 mW + 2400 mW @32Ω, SNR ≥124 dB (A-weighted). Specs and connectivity only — no listening impressions.

2026/10/7

In one line: FiiO K13（DAC/Amp，$320）： 2400 mW + 2400 mW @32Ω
Across the 2 DAC/Amp we track it ranks 2th by price.
Scope: maker-published output power, SNR, THD and connections only — no listening impressions.
Published figures: output power, SNR, THD, DAC chip, sampling rate

Audio DB · Full specs

Series	K
Form	DAC/Amp
Weight	957 g
ANC	No
Microphone	No
Output Power	2400 mW + 2400 mW @32Ω
SNR	≥124 dB (A-weighted)
THD+N	0.00034% (1kHz/-6dB @32Ω)
DAC Chip	ESS ES9039Q2M ×2
Supported Sampling Rate	PCM 768kHz/32bit · DSD512
Bluetooth	5.4 (LDAC / AAC / SBC)

Acoustic specs

Output Power

FiiO K13 · 2400mW

iFi Audio iDSD GR 2 MT · 1513mW

SNR

FiiO K13 · 124dB

iFi Audio iDSD GR 2 MT · 115dB

Weight

FiiO K13 · 957g

iFi Audio iDSD GR 2 MT · —g

Spec comparison · relative to this model

Product DB	FiiO K13 ★	iFi Audio iDSD GR 2 MT
Weight	957 g	—
ANC	No	No
Price	$320	$699↑+379$

↑↓ = difference vs the ★ model; lighter, longer battery and wider response are shown in green. “—” means the maker does not publish that figure.

FiiO K13 is FiiO’s DAC/Amp, reference price $320. Maker-published: 2400 mW + 2400 mW @32Ω · SNR ≥124 dB (A-weighted) · THD+N 0.00034% (1kHz/-6dB @32Ω)。This review covers specs and connectivity only — no listening impressions.

1. Where it sits among its peers

Across the 2 DAC/Amp we track it ranks 2th by price, 1th by output power (2 with data), 1th by SNR (2 with data).

FiiO K13: where it sits among all tracked audio devices (output power / SNR / weight) — ★ is the model under review, blue bars are devices of the same form factor (DAC/Amp), dark grey bars are other form factors. The three panels are output power (mW, linear), SNR (dB, drawn from the axis floor) and weight (g, logarithmic). Figures the maker does not publish show as “—” — we never pad or estimate them.

2. How to read the numbers

Output power 2400 mW + 2400 mW @32Ω: meaningful only together with the load impedance it is quoted at — a bare mW figure says little.SNR ≥124 dB (A-weighted): the higher it is, the lower the noise floor — this is what decides whether you hear hiss in quiet passages.THD 0.00034% (1kHz/-6dB @32Ω): non-linear distortion, lower is better — and a figure quoted at high output is worth more than one at whisper level.Supported formats: PCM 768kHz/32bit · DSD512, DAC chip ESS ES9039Q2M ×2.

3. Connections and use cases

Inputs/outputs: —. Bluetooth 5.4 (LDAC / AAC / SBC). Weight 957 g — desktop-class.

4. Against its peers

iFi Audio iDSD GR 2 MT ($699): 1513 mW @32Ω (Bal, 6.94V) · SNR 115 dBA

5. Weaknesses worth stating

On the published specs there is no obvious weakness; missing figures are shown as “—” in the spec table.

6. Who it is for — and who it is not

Desk-bound listeners: these units are designed around desktop size and power.
Format-focused buyers: the sampling rate and DAC chip are published.

Data note: every figure comes from maker-published specs recorded in our database (output power, SNR, THD, DAC chip, sampling rate, connections). No inferred values, no listening impressions; missing figures show as “—”.