Q7 is great with Ananda Nanos via balanced output with good cable. Even on Low gain. PS Just realized this is topic about Q7 and question was about HE1000v2 Stealth. But, anyway, maybe my response will be helpful for someone :)

Thanks for response, I considering HE6 as one of candidate on aftermarket. And yes, there is no portable alterative to Q7 with the same power on the market today.

Found: 2.5mm / 4.4mm Headphone out (Super High gain) Output power : 1500mW @16ohm / 3000mW @32ohm / 550mW @300ohm Output impedance : < 1.7 ohms (32ohms) Output power : 1500mW @16ohm / 1500mW @32ohm / 260mW @300ohm Output impedance : < 2.2 ohms (32ohms) So, not too powerful for low-impedance...

Currently I'm using Fostex TH610 with balanced custom cable and looking for level-up headphones. Budget is $1000-1200. Recommendations will be really appreciated.

Hi, TheDecline01, HE-6 impedance is 50 Ohm, if I'm not wrong. THX-788+ has TPA6120A2 in circuit and AFAIK has problems with impedance lower than 32 Ohm. HE1000V2 also 35 Ohm, so meet specs and 3Watts in desktop mode might be enough. My concern is regardig to low impedance planars.

Hi @FiiO Willson @FiiO Happy New Year to All! The question - will Q7 drive appropriately the low impedance planar headphones like Moondrop Venus, DCA Aeon Noire and so on?

Slappa Hardbody PRO, but with detached cable.