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USB-C CABLE DONGLE · CS43131

JCALLY JM20 PRO

A USB-C cable dongle with a CS43131 DAC chip, a 3.5 mm output and a built-in mic. Weight 6.5 g.

Manufacturer page

JCALLY JM20 PRO, official product photo
Photo: JCALLY
POWER AT 32 Ω31.25mW3.5 mm, per channel not stated
OUTPUT IMPEDANCENot statedNo data from the manufacturer
SNR>120dBas JCALLY states it
PRICE~$35.46AliExpress
OUTPUTS3.5 mm
DAC CHIPCS43131
PARAMETRIC EQ8 bandspeak, low shelf, low and high pass
CONTOURNot supported

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

Outputs and power

3.5 mm
31.25mWat 32 Ω
Spec image: 31.25 mW at 32 Ω, per channel or both channels not stated
Output impedance -
SNR>120 dB
Dynamic range120 dB
THD+N-105 dB
Crosstalk-70 dB

Not stated: gain, supply voltage.

Is it enough for your headphones?

JCALLY rates the JM20 PRO at 31.25 mW into 32 Ω. 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. 16 mW at 16 Ω+14 dB
Most IEMsTypical in-ears, 16 to 50 Ω
needs 3.2 mW31.25 mW at 32 Ω+10 dB
Easy-to-drive headphonesClosed and portable, 32 Ω
needs 16 mW31.25 mW at 32 Ω+3 dB
Hard-to-drive headphones300 Ω, HD 600 class, hungry for voltage
needs 20 mWest. 3.3 mW at 300 Ω8 dB short
Most planarsPlanar magnetic, low impedance, need current
needs 50 mW31.25 mW at 32 Ω2 dB short
Demanding planarsThe hardest loads, desktop territory
needs 251 mWest. 17 mW at 60 Ω12 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.

AliExpress · approximate price, AliExpress listing, checked 7 Nov 2026~$35.46

Compare prices on Soundblooms Deals

The device

From JCALLY's spec images unless marked
InputUSB-C
FormatsPCM up to 32-bit / 384 kHz, DSD256
DAC chipCS43131
Works withSupports exclusive playback in apps such as HiBy and Viper
MicSupports inline control/calls
IndicatorStandby - blue, PCM - green, exclusive DSD - red
BuildCNC-machined aluminium alloy shell; anodised matte silver with 180-mesh fine sandblast; 392-core 8-strand silver-plated copper
Parametric EQ8 bands. Not supported in Contour.product page
Length110 ± 10 mm
Weight6.5 g

How it stacks up against the competition

Power at 32 Ω · price in US dollars
10 mW20 mW50 mW100 mW5 mW$20$30$50$70scale breaks hereMost IEMs need 3.2 mW+10 dB to spareQuestyle M12i: 21 mW at 32 Ω, $49TANCHJIM SPACE LITE: 98 mW at 32 Ω, $39.99FiiO KA1: 45 mW at 32 Ω, $59.99iBasso 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 SD2: 70 mW at 32 Ω, $35.99MOONDROP DAWN PRO 2: 62 mW at 32 Ω, $59.99TempoTec Sonata HD III: 70 mW at 32 Ω, $45.90HiBy FC3: 70 mW at 32 Ω, $39iFi GO link: 70 mW at 32 Ω, $59Snowsky Tiny A: 34 mW at 32 Ω, $19.99JCALLY AP7: 70 mW at 32 Ω, ~$45.73JCALLY JM6: 28.2 mW at 32 Ω, $19.15JCALLY JM6PRO 2: 70 mW at 32 Ω, $16.99JCALLY JM7MAX: 118 mW at 32 Ω, $19.99JCALLY JM20: 31.3 mW at 32 Ω, ~$31.64JCALLY JM30: 31.3 mW at 32 Ω, ~$27JCALLY JM30L: 31.3 mW at 32 Ω, $26.99JCALLY JM30PRO: 31.3 mW at 32 Ω, ~$46.49JCALLY JM45: 20 mW at 32 Ω, ~$26.50JCALLY JM45L: 20 mW at 32 Ω, ~$28.45JM45LJCALLY JM80E: 45 mW at 32 Ω, $39JCALLY SP30: 31.3 mW at 32 Ω, ~$54.61SP30NiceHCK NK1 Ultra: 122 mW at 32 Ω, $29.99FiiO JIEZI A: 34 mW at 32 Ω, $18.99FiiO JIEZI B: 34 mW at 32 Ω, $22.99JIEZI BJCALLY JM20 PRO10 mW20 mW50 mW100 mW5 mW$20$30$50$70scale breaks hereMost IEMs need 3.2 mW+10 dB to spareQuestyle M12i: 21 mW at 32 Ω, $49M12iTANCHJIM SPACE LITE: 98 mW at 32 Ω, $39.99FiiO KA1: 45 mW at 32 Ω, $59.99iBasso 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 SD2: 70 mW at 32 Ω, $35.99MOONDROP DAWN PRO 2: 62 mW at 32 Ω, $59.99TempoTec Sonata HD III: 70 mW at 32 Ω, $45.90HiBy FC3: 70 mW at 32 Ω, $39iFi GO link: 70 mW at 32 Ω, $59Snowsky Tiny A: 34 mW at 32 Ω, $19.99JCALLY AP7: 70 mW at 32 Ω, ~$45.73JCALLY JM6: 28.2 mW at 32 Ω, $19.15JCALLY JM6PRO 2: 70 mW at 32 Ω, $16.99JCALLY JM7MAX: 118 mW at 32 Ω, $19.99JCALLY JM20: 31.3 mW at 32 Ω, ~$31.64JM20JCALLY JM30: 31.3 mW at 32 Ω, ~$27JM30JCALLY JM30L: 31.3 mW at 32 Ω, $26.99JM30LJCALLY JM30PRO: 31.3 mW at 32 Ω, ~$46.49JM30PROJCALLY JM45: 20 mW at 32 Ω, ~$26.50JM45JCALLY JM45L: 20 mW at 32 Ω, ~$28.45JM45LJCALLY JM80E: 45 mW at 32 Ω, $39JM80EJCALLY SP30: 31.3 mW at 32 Ω, ~$54.61SP30NiceHCK NK1 Ultra: 122 mW at 32 Ω, $29.99FiiO JIEZI A: 34 mW at 32 Ω, $18.99FiiO JIEZI B: 34 mW at 32 Ω, $22.99JIEZI BJCALLY JM20 PRO
  • Nearby
  • Same DAC chip
  • Most IEMs, 3.2 mW

Devices with the same DAC chip

CS43131 · 24 devices use it
JCALLYJM30L31.25 mW$26.9931.25 mW · $26.99
JCALLYJM3031.25 mW~$2731.25 mW · ~$27
FiiOKA11200 mWNoSGM8262$29.99200 mW · $29.99PEQ No · Amp SGM8262
JCALLYJM20MAX195 mWSGM8262$29.99195 mW · $29.99Amp SGM8262
TRNWorks with ContourBlack Pearl320 mWWorks with Contour10 bands$31.44320 mW · $31.44PEQ Yes, 10 bands
JCALLYJM2031.25 mW~$31.6431.25 mW · ~$31.64
FiiOKA2≥153 mWNo$34.59≥153 mW · $34.59PEQ No
TANCHJIMSPACE LITE98 mW$39.9998 mW · $39.99
SnowskyWorks with ContourMelody>250 mW0.736 ΩMeasuredWorks with Contour10 bands$39.99>250 mW · 0.736 Ω · $39.99PEQ Yes, 10 bands
JCALLYJM30PRO31.25 mW~$46.4931.25 mW · ~$46.49
JCALLYSP3031.25 mW~$54.6131.25 mW · ~$54.61
TempoTecSonata BHD Pro280 mW$59.90280 mW · $59.90

All 24 in the finder

Compared with

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

JCALLY JM20 PRO vs JCALLY JM98MAX

JCALLY JM98MAX is among the dongles in the catalog closest to JCALLY JM20 PRO in price: at 32 Ω JCALLY JM20 PRO is listed at 31.25 mW and JCALLY JM98MAX at ≈195 mW; the lowest prices are ~$35.46 and $34.99.

JCALLY JM20 PRO vs JCALLY JM98MAX: the manufacturers' stated figures and today's lowest price, side by side
JCALLY JM20 PROJCALLY JM98MAX
Power at 32 Ω31.25 mW3.5 mm, socket not printed; the only headphone output≈195 mW3.5 mm, socket not printed; the only headphone output
Power at 16 ΩNot stated≈235 mW3.5 mm, socket not printed; the only headphone output
Power at 300 ΩNot stated≈21 mW3.5 mm, socket not printed; the only headphone output
Price today~$35.46AliExpress, 7 Nov$34.99X, 7 Nov
DAC chipCS43131Cirrus Logic CS43198
InputsUSB-CUSB-C
Outputs3.5 mm3.5 mm
Size110 ± 10 mm110 ± 10 mm
Weight6.5 g8.8 g

JCALLY JM20 PRO vs Hidizs SD2

Hidizs SD2 is among the dongles in the catalog closest to JCALLY JM20 PRO in price: at 32 Ω JCALLY JM20 PRO is listed at 31.25 mW and Hidizs SD2 at 70 mW; the lowest prices are ~$35.46 and $35.99.

JCALLY JM20 PRO vs Hidizs SD2: the manufacturers' stated figures and today's lowest price, side by side
JCALLY JM20 PROHidizs SD2
Power at 32 Ω31.25 mW3.5 mm, socket not printed; the only headphone output70 mW3.5 mm, THD 0.0015% @32Ω, manufacturer wording: maximum, printed 70mW + 70mW
Price today~$35.46AliExpress, 7 Nov$35.99Hidizs store, 16 Oct
DAC chipCS43131ES9270
InputsUSB-CUSB-C
Outputs3.5 mm3.5 mm
Size110 ± 10 mm34.5 × 20 × 10 mm
Weight6.5 g6 g

JCALLY JM20 PRO vs FiiO KA2

FiiO KA2 is among the dongles in the catalog closest to JCALLY JM20 PRO in price: at 32 Ω JCALLY JM20 PRO is listed at 31.25 mW and FiiO KA2 at ≥153 mW; the lowest prices are ~$35.46 and $34.59.

JCALLY JM20 PRO vs FiiO KA2: the manufacturers' stated figures and today's lowest price, side by side
JCALLY JM20 PROFiiO KA2
Power at 32 Ω31.25 mW3.5 mm, socket not printed; the only headphone output≥153 mW4.4 mm balanced
Price today~$35.46AliExpress, 7 Nov$34.59eBay, 16 Oct
DAC chipCS43131CS43131 × 2
InputsUSB-CUSB-C cable, Lightning cable
Outputs3.5 mm4.4 mm balanced
Size110 ± 10 mmAbout 40 × 15 × 12 mm
Weight6.5 gAbout 12.3 g

More like this

More portable DAC amps

Sources

Checked 6 Nov 2026
JCALLY JM20 PRO product page
jcally.com · the product page
Used for the DAC chip