USB-C CABLE DONGLE · CONEXANT CX31993
JCALLY JM7MAX
A USB-C cable dongle with a Conexant CX31993 DAC chip, a 3.5 mm output and a built-in mic.
Numbers are the manufacturer's stated figures unless marked as measured; sources linked below.
Outputs and power
Not stated: gain, supply voltage.
The page has no parameter table. The comparison table (product details, image 5) gives SNR ≈115 dB, noise ≈2.5 µV, crosstalk ≈-76 dB, THD+N ≈0.0025%; the AP analyzer charts show SNR 118.568/119.504 dB, noise 1.959/1.888µVrms, crosstalk −78.121/-78.444 dB, THD+N 0.002859/0.002506% (Ch1/Ch2). The catalog uses the comparison table.
Is it enough for your headphones?
JCALLY rates the JM7MAX at ≈228 mW into 16 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.
Where to buy
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The device
From JCALLY's spec images unless markedHow 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 JM7 MAX vs Snowsky Tiny A
Snowsky Tiny A is among the dongles in the catalog closest to JCALLY JM7 MAX in price: at 32 Ω JCALLY JM7 MAX is listed at ≈118 mW and Snowsky Tiny A at 34 mW; the lowest prices are $19.99 and $19.99.
| JCALLY JM7 MAX | Snowsky Tiny A | |
|---|---|---|
| Power at 32 Ω | ≈118 mW3.5 mm, socket not printed; the only headphone output | 34 mW3.5 mm |
| Power at 16 Ω | ≈228 mW3.5 mm, socket not printed; the only headphone output | 45 mW3.5 mm |
| Power at 300 Ω | ≈12.9 mW3.5 mm, socket not printed; the only headphone output | Not stated |
| Price today | $19.99Hangout Audio, 7 Nov | $19.99Amazon US, 16 Oct |
| DAC chip | Conexant CX31993 | Not stated |
| Inputs | USB-C | USB-C (data), USB-C (charging pass-through, 2A/20V) |
| Outputs | 3.5 mm | 3.5 mm |
| Size | Not stated | 29 x 22 x 10 mm |
| Weight | Not stated | 7 g |
JCALLY JM7 MAX vs Kiwi Ears Allegro Mini
Kiwi Ears Allegro Mini is among the dongles in the catalog closest to JCALLY JM7 MAX in price: the lowest prices are $19.99 and $20.40, $0.41 apart.
| JCALLY JM7 MAX | Kiwi Ears Allegro Mini | |
|---|---|---|
| Power at 32 Ω | ≈118 mW3.5 mm, socket not printed; the only headphone output | Not stated |
| Power at 16 Ω | ≈228 mW3.5 mm, socket not printed; the only headphone output | Not stated |
| Power at 300 Ω | ≈12.9 mW3.5 mm, socket not printed; the only headphone output | Not stated |
| Price today | $19.99Hangout Audio, 7 Nov | $20.40Linsoul, 11 Nov |
| DAC chip | Conexant CX31993 | Not stated |
| Inputs | USB-C | USB-C |
| Outputs | 3.5 mm | 3.5 mm · 4.4 mm balanced |
JCALLY JM7 MAX price history · Kiwi Ears Allegro Mini price history
JCALLY JM7 MAX vs JCALLY JM6
JCALLY JM6 is among the dongles in the catalog closest to JCALLY JM7 MAX in price: at 32 Ω JCALLY JM7 MAX is listed at ≈118 mW and JCALLY JM6 at 28.2 mW; the lowest prices are $19.99 and $19.15, $0.84 apart.
| JCALLY JM7 MAX | JCALLY JM6 | |
|---|---|---|
| Power at 32 Ω | ≈118 mW3.5 mm, socket not printed; the only headphone output | 28.2 mW3.5 mm, socket not printed; the only headphone output |
| Power at 16 Ω | ≈228 mW3.5 mm, socket not printed; the only headphone output | Not stated |
| Power at 300 Ω | ≈12.9 mW3.5 mm, socket not printed; the only headphone output | Not stated |
| Price today | $19.99Hangout Audio, 7 Nov | $19.15Linsoul, 7 Nov |
| DAC chip | Conexant CX31993 | CX31993 |
| Inputs | USB-C | USB-C |
| Outputs | 3.5 mm | 3.5 mm |
| Size | Not stated | 110 ± 10 mm |
| Weight | Not stated | 5.5 g |