JCALLY JM20 MAX Headphone Dongle Review

[gogeta01]

Increase your player's asio buffer to more than 1024

I have the same issue. Is there a way to do it generally for Windows?

 

[VicSh]

I have the same issue. Is there a way to do it generally for Windows?

I think this can be done by reflashing it to FiiO KA11 and installing the FiiO USB DAC driver in the system. Then, in the buffer settings, you can increase its size to 2048 samples. This is the largest value.

 

[confucius_zero]

Hey I was wondering if we had total power draw/consumption numbers on this dongle?

 

[VicSh]

Hey I was wondering if we had total power draw/consumption numbers on this dongle?

It's hard to say; I couldn't find any data on this, but I connected the device to a tester, turned the volume all the way up, and got these peak values, though the average was around 1 watt.

 

[confucius_zero]

It's hard to say; I couldn't find any data on this, but I connected the device to a tester, turned the volume all the way up, and got these peak values, though the average was around 1 watt.View attachment 517651

You beauty!

 

[hampestampe]

It's hard to say; I couldn't find any data on this, but I connected the device to a tester, turned the volume all the way up, and got these peak values, though the average was around 1 watt.View attachment 517651

It’s a fun measurement, but the number unfortunately doesn’t tell us very much.
A dongle’s power draw depends just as much on what it’s driving — sensitive IEMs, demanding planars, or simply a line‑out — as on the dongle itself. Without knowing the load, volume, and signal, it’s hard to draw any general conclusions from that 1‑watt reading.

 

[VicSh]

It’s a fun measurement, but the number unfortunately doesn’t tell us very much.
A dongle’s power draw depends just as much on what it’s driving — sensitive IEMs, demanding planars, or simply a line‑out — as on the dongle itself. Without knowing the load, volume, and signal, it’s hard to draw any general conclusions from that 1‑watt reading.

Level and volume—as shown in the screenshot. I’m using the Truthear Crinacle Zero (first generation) as the load. If you have a test track, I can run it through it.

 

[Ahmonge]

Level and volume—as shown in the screenshot. I’m using the Truthear Crinacle Zero (first generation) as the load. If you have a test track, I can run it through it. View attachment 518398

"Ten New Songs" by Leonard Cohen and Rhiannon Giddens. Great album!

 

[hampestampe]

Level and volume—as shown in the screenshot. I’m using the Truthear Crinacle Zero (first generation) as the load. If you have a test track, I can run it through it. View attachment 518398

No worry, I've got same gear in a a box here so I'm able to messure myself.
But I don't get it. Why messure this? It's like asking about fuel consumption of tires. It's more up to the car and the speed of the car. But now, in this case, if the first question was about the jcally jm20 max together with the Crinacle truthear Zero in a specific listening volume it would have made some sense.

 

[Lambdalorian]

Reserved for @RickS to kindly post the specs.

JM20 MAX Features:

1.Model：JCALLY JM20MAX
2.P/N：JM20MAX CS43131 High Performance DAC Decoder Amplifier Adapter
3.DAC: CS43131
4.PCM: 32bits/384KHz
5.SNR/DNR: ＞126dB
6.Crosstalk: -140dB
7.DSD: DSD256 (1bits 11.2MHz
8.Output Load Adaptive: 16 - 600 Ω
9.FR: 20-20000kHz
10.Weight：6.5g±0.5g
11.Length: About 110mm±10
12.Type of wire core: 320 Coils 8 Cores Cable，
13.Color: JM20 MAX Silver

I don't think that there's even the slightest possibility that such dongle only weights 6.5g.

 

[Somafunk]

I don't think that there's even the slightest possibility that such dongle only weights 6.5g.

It won’t be far off, I’d say my jm20max weighs little more (if any) than an eighth (obscure reference that some folk will understand……..brothers unite)

 

[VicSh]

Я не думаю, что существует хоть малейшая вероятность того, что такой адаптер весит всего 6,5 г.

Spoiler: Photo