Comes down to sound signature preference.Very helpful thank you! I'm still on the fence between which one to get. I can get stealth new for $1400 but V2 used for $1750. But the Stealth has so many mixed impressions between people compared to the V2 where everyone agrees that its good. So we'll see.
He1000v2 is Netural Warm, and He1000 Stealth is Neutral Bright. They will need different DAC and amps pairings to cater to your preferred sound signature.
When I had the Arya Stealth (Neutral Bright) - it paired well with the Ares 2 (neutral warmish) and Singxer Sa1 (warmish). But when I got the He1000v2 that DAC and Amp combo wasn't ideal anymore, the sound signature became too warm, soft and liquidity.