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USB-C DONGLE · ESS9038Q2M

Hidizs S9 PRO

A USB-C dongle with an ESS9038Q2M DAC chip, a 3.5 mm and a 2.5 mm balanced output. Weight 11 g.

Manufacturer page

POWER AT 32 Ω200mW2.5 mm balanced
OUTPUT IMPEDANCENot statedNo data from the manufacturer
SNRNot statedNo data from the manufacturer
PRICE$65.99Lowest price at Hidizs store
OUTPUTS3.5 mm · 2.5 mm balanced
DAC CHIPESS9038Q2M
PARAMETRIC EQNot statedHidizs lists none
CONTOURNot supported

Numbers are the manufacturer's stated figures unless marked as measured; sources linked below.

Outputs and power

2.5 mm balanced
200mWat 32 Ω per channel
hidizs.net: 200 mW, printed L&R, THD 0.0006% @32Ω
Output impedance -
3.5 mm
100mWat 32 Ω per channel
hidizs.net: 100 mW, printed L&R, THD 0.0012% @32Ω
Output impedance -

Not stated: gain, supply voltage, SNR, distortion, crosstalk.

Is it enough for your headphones?

Hidizs rates the S9 PRO at 200 mW into 32 Ω from the 2.5 mm balanced output. Below is how much of that is left to spare for each kind of headphones when you listen loud, with peaks at 110 dB. A figure marked est. is worked out from that rating.

Sensitive IEMsMulti-driver sets that hiss on strong sources
needs 0.6 mWest. 100 mW at 16 Ω+22 dB
Most IEMsTypical in-ears, 16 to 50 Ω
needs 3.2 mW200 mW at 32 Ω+18 dB
Easy-to-drive headphonesClosed and portable, 32 Ω
needs 16 mW200 mW at 32 Ω+11 dB
Hard-to-drive headphones300 Ω, HD 600 class, hungry for voltage
needs 20 mWest. 21 mW at 300 Ω+0.3 dB
Most planarsPlanar magnetic, low impedance, need current
needs 50 mW200 mW at 32 Ω+6 dB
Demanding planarsThe hardest loads, desktop territory
needs 251 mWest. 107 mW at 60 Ω4 dB short

Where to buy

Some shop links are affiliate links: if you buy through one, I may earn a commission. Your price and the order stay the same.

Hidizs store · official store price, checked 16 Oct 2026$65.99

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The device

From Hidizs's spec sheet unless marked
InputUSB-C
FormatsPCM up to 32-bit / 768 kHz, DSD512
DAC chipESS9038Q2M
Parametric EQNo data from the manufacturer. Not supported in Contour.
Size59 × 18 × 8 mm
Weight11 g

How it stacks up against the competition

Power at 32 Ω · price in US dollars
100 mW200 mW500 mW$50$70$100scale breaks hereMost IEMs need 3.2 mW+18 dB to spareFiiO KA13: 550 mW at 32 Ω, $65.99FiiO KA15: 560 mW at 32 Ω, $99.99Questyle M12i: 21 mW at 32 Ω, $49MOONDROP DAWN 4.4: 230 mW at 32 Ω, $69.99TANCHJIM SPACE LITE: 98 mW at 32 Ω, $39.99FiiO KA1: 45 mW at 32 Ω, $59.99FiiO KA3: 235 mW at 32 Ω, $95.94KA3Snowsky Melody: 250 mW at 32 Ω, $39.99iBasso DC03PRO: 98 mW at 32 Ω, $69iBasso DC05: 93 mW at 32 Ω, $69Hidizs S3 PRO: 55 mW at 32 Ω, $39.99Hidizs S9: 125 mW at 32 Ω, $49.99Hidizs S9 Pro Plus Martha: 180 mW at 32 Ω, $65.99Hidizs S8 Pro Robin: 160 mW at 32 Ω, $59.99S8 Pro RobinHidizs XO: 195 mW at 32 Ω, $40.99MOONDROP DAWN PRO 2: 62 mW at 32 Ω, $59.99TempoTec Sonata BHD Pro: 280 mW at 32 Ω, $59.90TempoTec Sonata HD III: 70 mW at 32 Ω, $45.90Shanling UA2: 195 mW at 32 Ω, $85UA2Shanling UA3: 210 mW at 32 Ω, $109Shanling UA4: 227 mW at 32 Ω, $99HiBy FC3: 70 mW at 32 Ω, $39HiBy FC4: 340 mW at 32 Ω, $49iFi GO link: 70 mW at 32 Ω, $59iFi GO link Max: 241 mW at 32 Ω, $79CrinEar Protocol Max: 300 mW at 32 Ω, $76.49 (lowest offer on /deals today)JCALLY AP6: 440 mW at 32 Ω, $39.99JCALLY AP7: 70 mW at 32 Ω, ~$45.73JCALLY AP20: 330 mW at 32 Ω, ~$91.88JCALLY Galaxy SONATA: 560 mW at 32 Ω, $79.99JCALLY JM30PRO: 31.3 mW at 32 Ω, ~$46.49JCALLY JM80E: 45 mW at 32 Ω, $39JCALLY SP30: 31.3 mW at 32 Ω, ~$54.61NiceHCK Octave: 550 mW at 32 Ω, $89NiceHCK PureAural: 210 mW at 32 Ω, $59.99PureAuralMuse HiFi M3 Ultra: 480 mW at 32 Ω, $109.99Hidizs S9 PRO100 mW200 mW500 mW50 mW$50$70$100scale breaks hereMost IEMs need 3.2 mW+18 dB to spareFiiO KA13: 550 mW at 32 Ω, $65.99FiiO KA15: 560 mW at 32 Ω, $99.99Questyle M12i: 21 mW at 32 Ω, $49MOONDROP DAWN 4.4: 230 mW at 32 Ω, $69.99TANCHJIM SPACE LITE: 98 mW at 32 Ω, $39.99FiiO KA1: 45 mW at 32 Ω, $59.99FiiO KA3: 235 mW at 32 Ω, $95.94KA3Snowsky Melody: 250 mW at 32 Ω, $39.99iBasso DC03PRO: 98 mW at 32 Ω, $69iBasso DC05: 93 mW at 32 Ω, $69Hidizs S3 PRO: 55 mW at 32 Ω, $39.99Hidizs S9: 125 mW at 32 Ω, $49.99Hidizs S9 Pro Plus Martha: 180 mW at 32 Ω, $65.99S9 Pro Plus MarthaHidizs S8 Pro Robin: 160 mW at 32 Ω, $59.99S8 Pro RobinHidizs XO: 195 mW at 32 Ω, $40.99MOONDROP DAWN PRO 2: 62 mW at 32 Ω, $59.99TempoTec Sonata BHD Pro: 280 mW at 32 Ω, $59.90Sonata BHD ProTempoTec Sonata HD III: 70 mW at 32 Ω, $45.90Shanling UA2: 195 mW at 32 Ω, $85UA2Shanling UA3: 210 mW at 32 Ω, $109Shanling UA4: 227 mW at 32 Ω, $99UA4HiBy FC3: 70 mW at 32 Ω, $39HiBy FC4: 340 mW at 32 Ω, $49iFi GO link: 70 mW at 32 Ω, $59iFi GO link Max: 241 mW at 32 Ω, $79GO link MaxCrinEar Protocol Max: 300 mW at 32 Ω, $76.49 (lowest offer on /deals today)Protocol MaxJCALLY AP6: 440 mW at 32 Ω, $39.99JCALLY AP7: 70 mW at 32 Ω, ~$45.73JCALLY AP20: 330 mW at 32 Ω, ~$91.88JCALLY Galaxy SONATA: 560 mW at 32 Ω, $79.99JCALLY JM30PRO: 31.3 mW at 32 Ω, ~$46.49JCALLY JM80E: 45 mW at 32 Ω, $39JCALLY SP30: 31.3 mW at 32 Ω, ~$54.61NiceHCK Octave: 550 mW at 32 Ω, $89NiceHCK PureAural: 210 mW at 32 Ω, $59.99PureAuralMuse HiFi M3 Ultra: 480 mW at 32 Ω, $109.99Hidizs S9 PRO
  • Nearby
  • Same DAC chip
  • Most IEMs, 3.2 mW

Compared with

Manufacturers' stated figures; the price is today's lowest

Hidizs S9 PRO vs Hidizs S9

At 32 Ω Hidizs S9 PRO is listed at 200 mW and Hidizs S9 at 125 mW; the lowest prices are $65.99 and $49.99, $16 apart.

Hidizs S9 PRO vs Hidizs S9: the manufacturers' stated figures and today's lowest price, side by side
Hidizs S9 PROHidizs S9
Power at 32 Ω200 mW2.5 mm balanced, THD 0.0006% @32Ω, printed L&R125 mW2.5 mm balanced
Price today$65.99Hidizs store, 16 Oct$49.99Hidizs store, 16 Oct
DAC chipESS9038Q2MAK4493EQ
InputsUSB-CUSB-C
Outputs3.5 mm · 2.5 mm balanced3.5 mm · 2.5 mm balanced
Size59 × 18 × 8 mmNot stated
Weight11 g11 g

More like this

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Sources

Checked 14 Oct 2026
Hidizs S9 PRO specifications
hidizs.net · the spec sheet
Used for power, formats, the DAC chip, input, outputs, controls, compatibility, size and weight