Cayin N7: A Voyager of Unexplored Frontier
Feb 23, 2023 at 1:51 PM Post #301 of 1,872
If that helps, I was able to drive ATH-R70x (99dB sensitivity, 470ohm impedance) to full potential, not just loud enough, in high gain at 60/100 volume. Something like Meze Audio Empyrean, didn't need more than 44/100. For high end IEMs like Mentor Multiverse, Jewel, Traillii, etc. around 30/100.
Hi Alex thank you for sharing, how is Jewel bass with N7 compared to R01?☺️
 
Feb 23, 2023 at 2:05 PM Post #302 of 1,872
From what I ve read RS8 is one of the rare battery kings

I can squeak a good 14-16 hours with the RS8 depending on mix of AMP A/AB, local DSD256 to1024, Tidal Master streaming playback but ja, amazed with RS8 battery life.
 
Feb 23, 2023 at 7:27 PM Post #307 of 1,872
All the ports are squeezed in one place
That certainly looks inconvenient. I have DAPs that has either the charging at the bottom and headphone outs at the top or vice-versa. I certainly prefer the former. Not sure how the experience is having both charging and headphone outs at the bottom. If you hold the player upright then all the cables are running across your hand. If you invert the player then the side controls are reversed too and the volume knob goes at the bottom. Feels awkward imagining it, but of course can’t say without real experience using it.
 
Last edited:
Feb 23, 2023 at 8:19 PM Post #308 of 1,872
Is this Cayin N6ii+A02(Pre-Out)+R01(R2R)+E01(3.5mm Class A/AB)+E02(4.4mm Class AB)+Android 12 to put it simply ?
 
Feb 23, 2023 at 9:33 PM Post #309 of 1,872
Last edited:
Feb 23, 2023 at 9:48 PM Post #310 of 1,872
That certainly looks inconvenient. I have DAPs that has either the charging at the bottom and headphone outs at the top or vice-versa. I certainly prefer the former. Not sure how the experience is having both charging and headphone outs at the bottom. If you hold the player upright then all the cables are running across your hand. If you invert the player then the side controls are reversed too and the volume knob goes at the bottom. Feels awkward imagining it, but of course can’t say without real experience using it.

That's how it is with Cayin (N3pro, N7, N8ii) and Hiby (R5ii, R6 '20, R6 III, RS6, R8, RS8), having their PO/LO and usb ports at the bottom. N6ii is an exception because of a modular design.

And I personally wouldn't recommend charging and playing at the same time, those with N8ii will know what I mean, you will overheat the player.
 
Feb 24, 2023 at 2:40 AM Post #311 of 1,872
I am wondering how PCM-to-DSD conversion works in the N7, just in principle. Forgive me, please, if this has been clarified before.

Standard DSDnnn has sampling rates which are integer multiples of 44.1 kHz, i.e. nnn = 64, 128, 256, 512, called 64fs etc. The bitrates thus are 2.8224, 5.6448, 11.2896, 22.5792 MHz. This is the DSD that occurs ”in the wild“, as commercial DSD albums for download, and as physical SACDs (DSD64 only afaik).

Besides the ”44.1 kHz class“ of PCM sampling rates (88.2 and all further doublings, practically going up to 705.6 kHz today), there is also the ”other class“ of PCM sampling rates, starting from 48 kHz and going up to 768 kHz.

It seems obvious that the N7 would convert everything in the ”44.1 kHz PCM class“ to the standard DSD512 with 22.5792 MHz.

I am wondering what the ”48 kHz PCM class“ gets converted to. The ”natural“ conversion would be to 512fs of 48 kHz, i.e. to DSD512 with 24.576 MHz.

Correct? Just asking for reassurance.

And of course curious how the N7 concept sounds.
 
Feb 24, 2023 at 2:47 AM Post #312 of 1,872
Just curious as to the choice to not support any of the AptX Bluetooth codecs for maximal compatibility. @Andykong can you share any insight as to rationale?
 
Feb 24, 2023 at 3:49 AM Post #313 of 1,872
I am wondering how PCM-to-DSD conversion works in the N7, just in principle. Forgive me, please, if this has been clarified before.

Standard DSDnnn has sampling rates which are integer multiples of 44.1 kHz, i.e. nnn = 64, 128, 256, 512, called 64fs etc. The bitrates thus are 2.8224, 5.6448, 11.2896, 22.5792 MHz. This is the DSD that occurs ”in the wild“, as commercial DSD albums for download, and as physical SACDs (DSD64 only afaik).

Besides the ”44.1 kHz class“ of PCM sampling rates (88.2 and all further doublings, practically going up to 705.6 kHz today), there is also the ”other class“ of PCM sampling rates, starting from 48 kHz and going up to 768 kHz.

It seems obvious that the N7 would convert everything in the ”44.1 kHz PCM class“ to the standard DSD512 with 22.5792 MHz.

I am wondering what the ”48 kHz PCM class“ gets converted to. The ”natural“ conversion would be to 512fs of 48 kHz, i.e. to DSD512 with 24.576 MHz.

Correct? Just asking for reassurance.

And of course curious how the N7 concept sounds.
Googling "FPGA PCM to DSD" came up with this, I would bet my Chord Mojo 2/Poly on Cayin doing this, no point in reinventing the wheel.

https://audiopraise.com/services/fpga-cores/pcm-to-dsd-conversion/
 
Feb 24, 2023 at 4:28 AM Post #314 of 1,872
That's how it is with Cayin (N3pro, N7, N8ii) and Hiby (R5ii, R6 '20, R6 III, RS6, R8, RS8), having their PO/LO and usb ports at the bottom. N6ii is an exception because of a modular design.

And I personally wouldn't recommend charging and playing at the same time, those with N8ii will know what I mean, you will overheat the player.
I noticed that after I looked at the N8ii.
Also you are right about the charging and listening. I don’t do that anyway, even with the Sony DAP which never gets too warm. Seeing it this way, I guess it’s only a matter of whether the ports are at the top or bottom. Functionally, it doesn’t matter if they are all in one place as we will only be using one of those at any given time.
 
Feb 24, 2023 at 4:46 AM Post #315 of 1,872
Googling "FPGA PCM to DSD" came up with this, I would bet my Chord Mojo 2/Poly on Cayin doing this, no point in reinventing the wheel.

https://audiopraise.com/services/fpga-cores/pcm-to-dsd-conversion/
Thanks! I am not sure whether I understand you correctly. A remark on Chord DACs may be alright here, despite this thread being Cayin.

I have the Chord Hugo 2, and I struggled for a while to understand it. The Hugo 2 (and probably other Chord DACs, too) work just the other way around as compared to the N7. The Watts Transient Alignment filter (WTA) residing in its FPGA is optimized for PCM, and accordingly the FPGA converts PCM ”directly“ (read as taps and stuff). On the other hand, Hugo 2 accepts both native DSD and DoP digital formats coming in. But it converts all DSD to PCM 705.6 kHz, the so-called decimation, done as the first thing in the FPGA. Cf. this post by Rob Watts HERE and the posts before and after, plus probably quite some more. Nevertheless, I‘d wish there would be more transparency on Chord‘s side.

Pls correct me if I‘m wrong. And I don‘t know about the Mojo 2 in particular.
 
Last edited:

Users who are viewing this thread

Back
Top