I've had a week-and-change of proper listening with my* N30LE at this point. About 100 hours in total. Which means if it hasn't been playing it's been charging (I've not tried listening while charging yet - beyond making sure it worked).
I went for the N30LE primarily for its flexibility in output modes, with the biggest driver there being the potential for something that delivered a similar signature to that of the original N8. I didn't get on with the N8ii, nor the C9 (driven by other DAPs) as they didn't recreate the "magic" of the N8 in its tube mode for me (basically not “tubey” enough).
The N30LE does not disappoint in this regard.
At all.
Classic Tube mode gets me right back to what I enjoyed most about the presentation of the N8, and haven't found in any subsequent product, while managing to elevate the N8's technical performance significantly. Faster, more resolving, better impact/slam, more natural timbre ... but still retaining the lush, lucid, vivid liquidity and holographic presentation that I loved on the N8**.
Every listening session, so far, has been a thoroughly engrossing "just one more album ..." experience ... until either life intruded or it was time to charge the thing.
Now, I have spent some time in other modes. All are excellent - with slight shifts in emphasis on technicalities ... "improving" (objectively) as you go to "Modern" tube mode, and then into solid-state. Personally, I like Class A (or Hyper) and Classic Tube modes the best - to the point that unless I need more power or to extend the battery life for a given situation, I doubt I'll spend nearly as much critical listening time in the other modes.
The N30LE completely obliterates my prior DAP, the A&K SP2000. The other portable option I use is a 2Go/Hugo2 setup. The N30LE is far more enjoyable than that, also – though on a technicalities level they’re in the same ballpark. And the N30LE doesn’t need the all the fannying about that using a 2Go as anything other than a Roon endpoint entails.
Very impressive. Incredibly engaging. Thoroughly engrossing. Extremely glad I bought it, and that I didn’t just bail out on the original unit or replacement.
Teething troubles notwithstanding, Cayin have done an outstanding job how this thing sounds. And I hope some of what’s here trickles down into a C9 or N8ii successor.
Next stop … proper impressions once I have my re-biased unit.
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*This is my 2nd unit. The first had some hiss, noise and static issues, in all modes/on all connections, with all transducers, that only occurred when it got over 100F. That unit was promptly replaced. The replacement exhibits the class A/4.4mm hiss issue - but so far only with my IE600 ... so I've simply done all my listening with other IEMs/headphones. Cayin are replacing this unit with one of the adjusted/re-biased units.
**If I could have streamed directly on the N8, or used it as a USB DAC/amp with an iPhone, I'd never have sold it.