[Nooborghini]

I just tried using a 4.4mm into my HD6XX and my initial sound impressions is that it didn’t change anything.

It did wonders for my IE80S, prob more that it went from 3.5mm to 4.4mm than pure silver cable vs stock.

I was expecting more of a power volume difference going from 3.5 to 4.4mm but I didn’t notice any difference.

Anyone else have this?

 

[ayanamireiiz]

my cable is 2.5 , should I use 2.5 slot or 4.4 with connector ? I am not sure if this can improve 2.5 sound quality if pass the adaptor.

 

[CANiSLAYu]

I just tried using a 4.4mm into my HD6XX and my initial sound impressions is that it didn’t change anything.

It did wonders for my IE80S, prob more that it went from 3.5mm to 4.4mm than pure silver cable vs stock.

I was expecting more of a power volume difference going from 3.5 to 4.4mm but I didn’t notice any difference.

Anyone else have this?

Did you enable high gain and over-ear mode as well?

 

[AudioBomb]

Wow then it's a must for me as I am 90% streaming

Yes, it will be. Give it a try and see for yourself

I'm 90% streamer too.

I also suggest that you give Deezer Hi-Fi a try. It sounds as good directly from the app as Tidal from UAPP. I actually prefer Deezer and cancelled Tidal's subscription.

 

[ayanamireiiz]

Yes, it will be. Give it a try and see for yourself

I'm 90% streamer too.

Trying rightnow !
Unfortunately it cannot download tidal offline song.

 

[AudioBomb]

Trying rightnow !
Unfortunately it cannot download tidal offline song.

Yes, that's true. But sounds so much better.

I've edited my post. Please read the last line.

 

[ayanamireiiz]

Yes, that's true. But sound so much better.

I've edited my post. Read the last line.

Oh thank you for sharing. I will try Deezer again. Used to play around years ago as in Thailand it doesn't much good.

 

[AudioBomb]

Oh, here in Portugal it's excellent.

 

[ayanamireiiz]

Oh, here in Portugal it's excellent.

Seam like it's only first unfold mqa. Maybe need to wait for firmware to support 3th party for 8x unfold.

 

[ayanamireiiz]

Can anyone recommend charging adaptor? I am using apple adaptor 18w from iPad pro but I found it very slow charging.

 

[hmscott]

my cable is 2.5 , should I use 2.5 slot or 4.4 with connector ? I am not sure if this can improve 2.5 sound quality if pass the adaptor.

In the end, you should test it yourself, but I've tested it and the sound is the same as far as I can tell. 2.5mm connector end + 4.4mm adapter vs 4.4mm native - I do like the more sturdy native 4.4mm connection, but sound is as far as I can tell the same using the adapter - DJ44A

The M15 sound is also the same between the 2.5mm socket and the 4.4mm socket using the 2.5mm to 4.4mm adapter.

I've ordered new KBEAR 16 core cables with 4.4mm ends to upgrade my 2.5mm KBEAR 16 core cables mostly for consistency between the M15 + Topping A90.

For some IEM's I'll stay with 2.5mm for use with the BTR5 / BTR3k.

Can anyone recommend charging adaptor? I am using apple adaptor 18w from iPad pro but I found it very slow charging.

I've found the Samsung 25w Super Fast Charger work's well with the M15. The M15 would do fine with compatible 18w fast chargers, as that is the M15's stated charging parameters (12V * 1.5A = 18W):

Power specifications
USB power adapter	QC2.0/MTK PE quick charger, PD2.0 charger, DC 12V/1.5A recommended	Battery capacity	7490mAh 3.8V Li-polymer battery supporting quick charge
Charging time	About 3.5h (DC 12V/1.5A)	Deep sleep time	＞1800h

https://www.fiio.com/m15_parameters

 

[DavidWillett]

Any reason to use SPDF to then drive an amp RCA jacks?

 

[DavidWillett]

I just tried using a 4.4mm into my HD6XX and my initial sound impressions is that it didn’t change anything.

It did wonders for my IE80S, prob more that it went from 3.5mm to 4.4mm than pure silver cable vs stock.

I was expecting more of a power volume difference going from 3.5 to 4.4mm but I didn’t notice any difference.

Anyone else have this?

Is your 4.4 cable balanced? Is there a +/- for each channel - 4 total conductors?
The 2.5 and 4.4 are balanced sockets.

The 3.5 has a common so there are only 3 conductors. I assume is a 4.4 is not wired as balanced, it would be like the 3.5. My 4.4 balanced sounded better than the 3.5 to the same headphones. There is also more voltage available to the 4.4 - so might be that, but it did sound better to me.

 

[AudioBomb]

Can anyone recommend charging adaptor? I am using apple adaptor 18w from iPad pro but I found it very slow charging.

Very fast charging with the Huawei P40 PRO's charger.

 

[Pictograms]

Any reason to use SPDF to then drive an amp RCA jacks?

Spdif is a digital output so you can’t use it to drive the amp.
https://en.m.wikipedia.org/wiki/S/PDIF