Cayin N8ii: The Incredible DAP with ROHM DAC and fully BAL Nutube
Mar 10, 2022 at 3:58 PM Post #1,186 of 5,538
Anyone else anxiously awaiting a shipment email from MusicTeck? 😂

I hope these go out today! Would have it tomorrow for the weekend.

Yasss!!! Anxiously excited awaiting Shopify and UPS app notifications - turned my iPhone ringer on, LOL.
 
Mar 10, 2022 at 4:15 PM Post #1,188 of 5,538
My confidence in it shipping today is dwindling.
Awww, there there 🐾🐾🐾 with you there. I recalled initial estimation was Mar 10-15. Good thing work has been busy recently to distract me constant checking, LOL.
 
Mar 11, 2022 at 3:41 AM Post #1,190 of 5,538
I can't discuss future product in detail, but I can tel you that N8, N3Pro and N8ii are the only DAPs with tubes in our profile. We don't have any other DAP using vacuum tubes in current roadmap.
Hi, could you tell me please if in your current roadmap you're considering Roon certification for the N8ii, thanks.
 
Mar 11, 2022 at 5:01 AM Post #1,192 of 5,538
1646989121043.png


4-Channels Analog Volume Control

One of the major different between N8ii and the original N8 is the volume control. N8 relies on the digital volume in DAC chipset, N8ii use a separate quad-channels electronic controlled resistance ladder analog volume before the fully balanced fully discrete head-amp circuit.

So what is the big deal with analog volume control? The advantage of using analog volume is to keep the digital audio circuit in full output all the time. This is particularly important to current mode DAC because we do not want an attenuated input to the IV converters. A properly implemented analog volume control can preserve the dynamic range of the digital audio circuit even when output is attenuated to very low volume. Try to visualize from a very sensitive IEM user perspective. If you turn the digital volume all the way down to single digital (say 9 at 0..99 volume range), what will be the implication to the output stage of the digital audio circuit? Will they still maintain 100% dynamic range?

Cayin uses digitally controlled analog volume in many DAPs and PGA2311A is our most frequently used 2-channls electronic analog volume controller. Our first DAP was N6 back it 2014, it employs dual PCM1792A current mode DAC and that's where we start our venture with PGA2311A electronic controlled volume. When we need a fully balanced volume control for our new portable product, our natural choice will be PGA4311A which is the 4-channels version of PGA2311A. Unfortunately the PGA4311A turns out simply combining two PGA2311A into one chipset, so it has two separate electronic controllers in one chipset, not an ideal design from noise level, power consumption and channel balanced management point of view.

That’s where JNC NJW1195A comes in. This is a premium grade low noise low distortion electronic controlled analog volume controller. With 4-channel in one integrated controller, we can achieve higher precision, lower noise and lower power consumption than using two stereo volume controllers. One of the biggest advantages of JNC NJW1195A is to ensure channel balanced at low volume level. This has become a significant problem to latest high sensitivity IEMs.

We used this volume controller in A02 Audio Motherboard and we were very pleased with its low noise performance, that's why we used it again in N8ii. For the record, NJW1195A is widely used among audiophile preamp, including the high-end Esoteric N-05XD Streamer/DAC/Preamp retailed at $11K.

Last but not least, the NJW1195A requried an "encoder", aka volume knob to complete its chain. The original N8 uses an encoder to cover Volume control, on/off and screen on/off feature. As a result of that, the encoder need to rotate and push in (or described as click by some reviewer) on different occasions, that means we need to left a 3mm to 4mm gap behind the knob so that it can be push in. Some users didn't like this "lack of firmness" feeling when turning the volume knob of N8. Although we didn't encounter abnormal repair rate because of this design, we decided to change our design to offer better user experience. So we split the encoder into a dedicated volume knob (aka, encoder for the volume chip) and a push button to facilitate Power on/off and screen on/off button seperately.

The N8ii volume knob is made of brass because it has hard and soft properties that allow it to be strong and flexible enough to repeatedly turning without stressing. We have engraved it with a glamour 3{4} dodecagram and gold-plated it for glamous and elegant presentation. No, it won't improved the audio performance of N8ii, gold plating is mainly for durable consideration. :wink:


1646992822418.png
 
Cayin Stay updated on Cayin at their sponsor profile on Head-Fi.
 
http://en.cayin.cn/
Mar 11, 2022 at 5:03 AM Post #1,193 of 5,538
Hi, could you tell me please if in your current roadmap you're considering Roon certification for the N8ii, thanks.
All technology licensing is subject to NDA, we cannot disclose anything without consent of the license holding party.
 
Cayin Stay updated on Cayin at their sponsor profile on Head-Fi.
 
http://en.cayin.cn/
Mar 11, 2022 at 5:39 AM Post #1,195 of 5,538
All technology licensing is subject to NDA, we cannot disclose anything without consent of the license holding party.
Thanks for the feedback I wasn't aware of this, but couldn't Cayin ask Roon for consent to disclose as it would seem to me to be in the interests of both parties given that they would each be adding something positive to their product and thus expanding on their client acquisition.
 
Mar 11, 2022 at 7:09 AM Post #1,196 of 5,538
Killin' me Musictek! Really looking forward to getting ear-time on this, first Cayin DAP.
 
Mar 11, 2022 at 9:24 AM Post #1,198 of 5,538
Thanks for the feedback I wasn't aware of this, but couldn't Cayin ask Roon for consent to disclose as it would seem to me to be in the interests of both parties given that they would each be adding something positive to their product and thus expanding on their client acquisition.

This is not how it work with business contract and NDA. If any lincensing body offers an exemption to Cayin N8ii, Company A will said our new product has a larger sales volume, we should have exemption as well. Company B will say our flagship DAC triples the price of N8ii, we should have exemption as well. Company C will say we are your friendly neighbourhood (in the same country), you cannot grant exemption to an outsider without granting exemption to me, .... and the system will collapsed.
 
Cayin Stay updated on Cayin at their sponsor profile on Head-Fi.
 
http://en.cayin.cn/
Mar 11, 2022 at 9:27 AM Post #1,199 of 5,538
This is not how it work with business contract and NDA. If any lincensing body offers an exemption to Cayin N8ii, Company A will said our new product has a larger sales volume, we should have exemption as well. Company B will say our flagship DAC triples the price of N8ii, we should have exemption as well. Company C will say we are your friendly neighbourhood (in the same country), you cannot grant exemption to an outsider without granting exemption to me, .... and the system will collapsed.
 

Users who are viewing this thread

Back
Top