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USB-C DONGLE · ES9038Q2M

Hidizs S9 Pro Plus Martha

A USB-C dongle with an ES9038Q2M DAC chip, a 3.5 mm and a 4.4 mm balanced output. Weight 17 g.

Manufacturer page · Price history

POWER AT 32 Ω180mW4.4 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 · 4.4 mm balanced
DAC CHIPES9038Q2M
PARAMETRIC EQNot statedHidizs lists none
CONTOURNot supported

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

Outputs and power

4.4 mm balanced
180mWat 32 Ω per channel
Spec sheet: 180 mW, printed 180mW+180mW, THD 0.0008% @32Ω, manufacturer wording: up to
Output impedance -
3.5 mm
138mWat 32 Ω per channel
Spec sheet: 138 mW, printed 138mW+138mW, THD 0.0019% @32Ω, manufacturer wording: up to
Output impedance -

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

Is it enough for your headphones?

Hidizs rates the S9 Pro Plus Martha at 180 mW into 32 Ω from the 4.4 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. 90 mW at 16 Ω+22 dB
Most IEMsTypical in-ears, 16 to 50 Ω
needs 3.2 mW180 mW at 32 Ω+18 dB
Easy-to-drive headphonesClosed and portable, 32 Ω
needs 16 mW180 mW at 32 Ω+11 dB
Hard-to-drive headphones300 Ω, HD 600 class, hungry for voltage
needs 20 mWest. 19 mW at 300 Ωunder 1 dB short
Most planarsPlanar magnetic, low impedance, need current
needs 50 mW180 mW at 32 Ω+6 dB
Demanding planarsThe hardest loads, desktop territory
needs 251 mWest. 96 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 for the Standard (no LT02 adapter), checked 20 Oct 2026$65.99Linsoul · read 11 Nov 2026$71.99

Price historyCompare prices on Soundblooms Deals

The device

From Hidizs's spec sheet unless marked
InputUSB-C
FormatsPCM up to 32-bit / 768 kHz, DSD512 native
DAC chipES9038Q2M
VolumePhysical buttons
Parametric EQNo data from the manufacturer. Not supported in Contour.
Size55 × 25 × 11 mm
Weight17 g

How it stacks up against the competition

Power at 32 Ω · price in US dollars
100 mW200 mW500 mW10 mW$50$70$100scale breaks hereMost IEMs need 3.2 mW+18 dB to spareQuestyle 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, $95.94Snowsky 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, $49.99S9Hidizs S9 PRO: 200 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 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 PureAural: 210 mW at 32 Ω, $59.99Muse HiFi M3 Ultra: 480 mW at 32 Ω, $109.99Hidizs S9 Pro Plus Martha100 mW200 mW500 mW50 mW$50$70$100scale breaks hereMost IEMs need 3.2 mW+18 dB to spareQuestyle M12i: 21 mW at 32 Ω, $49MOONDROP DAWN 4.4: 230 mW at 32 Ω, $69.99DAWN 4.4TANCHJIM 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, $49.99S9Hidizs S9 PRO: 200 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, $59.90Sonata 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)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 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 PureAural: 210 mW at 32 Ω, $59.99PureAuralMuse HiFi M3 Ultra: 480 mW at 32 Ω, $109.99Hidizs S9 Pro Plus Martha
  • Nearby
  • Same DAC chip
  • Most IEMs, 3.2 mW

Devices with the same DAC chip

ES9038Q2M · 6 devices use it
ShanlingUA2195 mW0.8 ΩRicore RT6863$85195 mW · 0.8 Ω · $85Amp Ricore RT6863
FiiOKA3≥235 mW<0.5 ΩNomodel: RT6863D; count: 2$95.94≥235 mW · <0.5 Ω · $95.94PEQ No · Amp model: RT6863D; count: 2
AudioQuestDragonFly Cobalt$199.95$199.95
JCALLYJM60ESS ES9603QAmp ESS ES9603Q
JCALLYJM60LESS ES9603QAmp ESS ES9603Q

All 6 in the finder

Compared with

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

Hidizs S9 Pro Plus vs FiiO KA13

FiiO KA13 is among the dongles in the catalog closest to Hidizs S9 Pro Plus in price: at 32 Ω Hidizs S9 Pro Plus is listed at 180 mW and FiiO KA13 at >550 mW; the lowest prices are $65.99 and $65.99.

Hidizs S9 Pro Plus vs FiiO KA13: the manufacturers' stated figures and today's lowest price, side by side
Hidizs S9 Pro PlusFiiO KA13
Power at 32 Ω180 mW4.4 mm balanced, THD 0.0008% @32Ω, manufacturer wording: up to, printed 180mW+180mW>550 mW4.4 mm balanced, desktop on
Price today$65.99Hidizs store, 20 Oct$65.99Mimic Audio, 20 Oct
DAC chipES9038Q2MCS43131 × 2
InputsUSB-CUSB-C
Outputs3.5 mm · 4.4 mm balanced3.5 mm · 4.4 mm balanced
Size55 × 25 × 11 mmAbout 56.5 × 22 × 10.5 mm
Weight17 gAbout 19 g

Hidizs S9 Pro Plus price history · FiiO KA13 price history

Hidizs S9 Pro Plus vs Hidizs S9 PRO

Hidizs S9 PRO is among the dongles in the catalog closest to Hidizs S9 Pro Plus in price: at 32 Ω Hidizs S9 Pro Plus is listed at 180 mW and Hidizs S9 PRO at 200 mW; the lowest prices are $65.99 and $65.99.

Hidizs S9 Pro Plus vs Hidizs S9 PRO: the manufacturers' stated figures and today's lowest price, side by side
Hidizs S9 Pro PlusHidizs S9 PRO
Power at 32 Ω180 mW4.4 mm balanced, THD 0.0008% @32Ω, manufacturer wording: up to, printed 180mW+180mW200 mW2.5 mm balanced, THD 0.0006% @32Ω, printed L&R
Price today$65.99Hidizs store, 20 Oct$65.99Hidizs store, 16 Oct
DAC chipES9038Q2MESS9038Q2M
InputsUSB-CUSB-C
Outputs3.5 mm · 4.4 mm balanced3.5 mm · 2.5 mm balanced
Size55 × 25 × 11 mm59 × 18 × 8 mm
Weight17 g11 g

Hidizs S9 Pro Plus price history

Hidizs S9 Pro Plus vs iBasso DC03 PRO

iBasso DC03 PRO is among the dongles in the catalog closest to Hidizs S9 Pro Plus in price: at 32 Ω Hidizs S9 Pro Plus is listed at 180 mW and iBasso DC03 PRO at 98 mW; the lowest prices are $65.99 and $69, $3.01 apart.

Hidizs S9 Pro Plus vs iBasso DC03 PRO: the manufacturers' stated figures and today's lowest price, side by side
Hidizs S9 Pro PlusiBasso DC03 PRO
Power at 32 Ω180 mW4.4 mm balanced, THD 0.0008% @32Ω, manufacturer wording: up to, printed 180mW+180mW98 mW3.5 mm, measured by the AP525
Price today$65.99Hidizs store, 20 Oct$69iBasso store, 16 Oct
DAC chipES9038Q2MCS43131 × 2
InputsUSB-CUSB-C
Outputs3.5 mm · 4.4 mm balanced3.5 mm
Size55 × 25 × 11 mm49.4 × 21 × 8 mm
Weight17 g10.5 g

Hidizs S9 Pro Plus price history · iBasso DC03 PRO price history

More like this

More portable DAC amps

Sources

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