USB-C CABLE DONGLE · CX31993
JCALLY JM6
A USB-C cable dongle with a CX31993 DAC chip, a 3.5 mm output and a built-in mic. Weight 5.5 g.

POWER AT 32 Ω28.2mW3.5 mm, per channel not stated
OUTPUT IMPEDANCENot statedNo data from the manufacturer
SNR117dBoutput not stated
PRICE$19.15Lowest price at Linsoul
OUTPUTS3.5 mm
DAC CHIPCX31993
PARAMETRIC EQNot statedJCALLY lists none
CONTOURNot supported
Numbers are the manufacturer's stated figures unless marked as measured; sources linked below.
Outputs and power
3.5 mm
28.2mWat 32 Ω
Spec image: 28.2 mW at 32 Ω, per channel or both channels not stated
Output impedance -
SNR117 dB (JCALLY does not say for which output)
THD+N-95 dB
Crosstalk-53 dB
Not stated: gain, supply voltage.
Is it enough for your headphones?
JCALLY rates the JM6 at 28.2 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. 14 mW at 16 Ω+13 dBMost IEMsTypical in-ears, 16 to 50 Ω
needs 3.2 mW28.2 mW at 32 Ω+10 dBEasy-to-drive headphonesClosed and portable, 32 Ω
needs 16 mW28.2 mW at 32 Ω+3 dBHard-to-drive headphones300 Ω, HD 600 class, hungry for voltage
needs 20 mWest. 3 mW at 300 Ω8 dB shortMost planarsPlanar magnetic, low impedance, need current
needs 50 mW28.2 mW at 32 Ω2 dB shortDemanding planarsThe hardest loads, desktop territory
needs 251 mWest. 15 mW at 60 Ω12 dB shortWhere 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.
The device
From JCALLY's spec images unless markedInputUSB-Cproduct page
FormatsPCM up to 32-bit / 384 kHz
DAC chipCX31993
MicCan answer calls, supports inline control
Build5N oxygen-free copper silver-plated conductor; aluminium alloy shell with hard germanium plating
Parametric EQNo data from the manufacturer. Not supported in Contour.
Length110 ± 10 mm
Weight5.5 g
How it stacks up against the competition
Power at 32 Ω · price in US dollars- Nearby
- Same DAC chip
- Most IEMs, 3.2 mW
Devices with the same DAC chip
CX31993 · 13 devices use itCompared with
Manufacturers' stated figures; the price is today's lowestJCALLY JM6 vs JCALLY JM6 PRO
At 32 Ω JCALLY JM6 is listed at 28.2 mW and JCALLY JM6 PRO at 60 mW; the lowest prices are $19.15 and $14.99, $4.16 apart.
| JCALLY JM6 | JCALLY JM6 PRO | |
|---|---|---|
| Power at 32 Ω | 28.2 mW3.5 mm, socket not printed; the only headphone output | 60 mW3.5 mm, socket not printed; the only headphone output |
| Price today | $19.15Linsoul, 7 Nov | $14.99Hangout Audio, 7 Nov |
| DAC chip | CX31993 | Conexant CX31993 |
| Inputs | USB-C | USB-C |
| Outputs | 3.5 mm | 3.5 mm |
| Size | 110 ± 10 mm | 110 ± 10 mm |
| Weight | 5.5 g | About 6 g |