[sbszine]

The closest device from Douk Audio, the MC5 audio mixer:
https://doukaudio.com/products/douk-audi...line-mixer

Oh yeah, I looked at those but I ended up with a fully passive mixer as I've got active speakers in my study. I like the flexibility of the Douk though; it's pretty good being able to run it optionally active.

I think the best solution is probably an inline passive attenuator like this:



If your headphones don't support it (e.g. earbuds) you can use a gender bender. I've got one of these in my tangara case and it works really well. There's no impact on sound quality, but you do need to set the tangara volume a bit higher than usual.