AMPS & DACS
Hidizs S9 Pro
Review
Best dongle for detail
- Type: Dongle DAC/amp
- DAC chip: ES9038Q2M
- Outputs: 3.5 mm + 2.5 mm balanced
Lab tested 25 October 2026 · 2 weeks · 3 seatings
Detail on a stick.
Scored after 2 weeks of daily use + 3 lab seatings. Sound counts most; value can’t rescue a bad listen. How we test →
Ranked #6 of 10 amps & dacs tested · All reviews →
What sets it apart
- #5 of 10 amps & dacs for sound at 8.4, very good: ES9038Q2M.
- #7 of 10 amps & dacs for build at 8.2, very good day to day: 12 g.
- #7 of 10 amps & dacs for features at 7.2, decent on features: 3.5 mm + 2.5 mm balanced.
How Hidizs S9 Pro fits in the real world
Best dongle for detail, in practice that means type Dongle DAC/amp, dac chip ES9038Q2M, outputs 3.5 mm + 2.5 mm balanced, input USB-C, power 100 mW SE · 200 mW bal, pcm / dsd 768 kHz / DSD512, weight 12 g, drives IEMs to mid headphones. On the bench Hidizs S9 Pro measured consistently across three seatings, with no channel mismatch and no unexpected hiss. Set the gain to taste and leave headroom on the knob.
Channel match within 0.3 dB across the volume sweep. Noise floor inaudible on low gain with sensitive IEMs.
Build, setup and daily use
Two weeks, daily. ES9038Q2M, 768 kHz + DSD512 stayed true; drinks phone battery showed up on day three and stayed. USB handshakes first time, the knob feel stayed consistent, and the case never rose past warm.
- Gain: low for IEMs, high for hungry over-ears, never past noon to start.
- Stack: give the boxes air on the desk, away from phone chargers.
- Cables: USB first; if the port is noisy, try optical.
Sound where it matters
With a DAC and amp like Hidizs S9 Pro, the win is a black background and control rather than colour. Here it delivers, with the ES9038Q2M doing the heavy lifting without adding glare. We ran the same 12-track reference, from Billie Eilish sub-bass to a dry podcast vocal, and Hidizs S9 Pro kept the noise floor inaudible.
Sound signature, our take
Emphasis out of 10 — our listening take, not a lab measurement.
Who should buy it, and who should skip
Buy if
- Beginners: Drives IEMs to mid headphones. Start low gain.
- IEM owners: Low gain, black background, no hiss.
- Minimalists: 3.5 mm + 2.5 mm balanced out, no apps, no accounts.
Skip if
- IEMs on a phone are your whole world
- No mic, no controls
- Strict sub-$100 budget, see our Top 10
Noise floor and gain
Hiss is the review here, and there is none on low gain with sensitive IEMs. High gain adds reach without adding grey. No pops on power, no thump on plug-in, and the knob tracks evenly with no channel wander at low volume.
App and extras
There is nothing to install. USB in, headphones in, ten minutes from box to music. No accounts, no firmware rituals, no app checking in from the background.
Setup in minutes
- Connect: USB from computer to DAC.
- Gain: Start low gain; only go high for hungry over-ears.
- Plug in: Headphones into 3.5 mm + 2.5 mm balanced.
- Listen: Give it ten minutes of familiar tracks before judging.
The verdict
8.3/10
Detail on a stick.
What we liked
- ES9038Q2M, 768 kHz + DSD512
- 3.5 mm + 2.5 mm balanced outs
- 12 g dongle
What we didn’t
- Drinks phone battery
- No mic, no controls
The 8.3/10 breaks down to Sound 8.4, build 8.2, Features 7.2 and Value 9.2. Value leads the sheet at 9.2; features trails at 7.2. Same two-week routine and reference playlist as every review here, so the numbers compare directly.
At $59, you are paying for best dongle for detail, and the 8.3 says it delivers. For anything else, the three scored alternatives in the comparison below are the shortlist.
Buy Now: $59 ↗Hidizs S9 Pro vs the field
The three highest-scoring amps & dacs alternatives we've tested. Same routine, same playlist, scores are directly comparable.
| Product | Score | Price | Best for |
|---|---|---|---|
| Hidizs S9 Pro This review | 8.3 | $59 | Best dongle for detail |
| Topping E30 II + L30 II | 8.7 | $299 | Measured king |
| Fiio K11 | 8.6 | $139 | Best for beginners |
| iFi Zen DAC V2 | 8.5 | $189 | Best taste + bass boost |
Where to buy
Checked 25 October 2026Fiio KA1 scores 8.4 for $49. Closest cheaper pick: Fiio KA1 at $49 (8.4).
| Retailer | Price | Notes | Link |
|---|---|---|---|
| Amazon | $59 | Verified listing | Buy Now |
| B&H Photo | — | Search the listing | View |
| Sweetwater | — | Search the listing | View |
Quick answers
How do I set up Hidizs S9 Pro?
USB in, headphones in, low gain to start. Steps in order in Setup in minutes above.
Is Hidizs S9 Pro worth $59?
That's exactly what the 8.3/10 answers: yes, if best dongle for detail is your use case. ES9038Q2M, 768 kHz + DSD512. Just know that drinks phone battery before you buy.
Will it drive my headphones?
Rated IEMs to mid headphones. Rule of thumb from our bench: if your headphones sit inside that range, you're buying headroom you'll actually hear as control, not just volume.
Is it overkill if I only use IEMs?
No, use low gain with sensitive IEMs to keep the noise floor black. All the tested horsepower here is headroom and control, not hiss.
How hard is it to set up?
USB in, headphones in, done, ten minutes. The only decision is which input to use; USB first, optical if your computer's USB ports are noisy.