I guess since I am the one who started this thread, I might as well tell you about my headphone set up. I love listening through headphones. Some might be even more “into it” then I am, but still, this is my stuff.
I have a few headphones. I have a closed-back set of ear-goggles, the Sennheiser HD-820. For daytime listening I use either my Grado PS-2000e. I also have an older set of Oppo planar magnetic PM-1. I have a bunch of lesser ‘phones, but those are my three best.
I have a few headphone amplifiers, but two of them are worth mentioning - The solid-state Pass Labs HPA-1 is killer. But I also have a vacuum tube powered Woo Audio WA-2 that is, IMHO an excellent sounding unit.
When I’m listening late at night I often listen through one of FiiO’s latest offerings, their M17 digital audio player. It’s a large “portable” player that’s like the old iPod Touch, the M17 is like an Android cell phone that can’t make phone calls, but can also be used a number of ways, but I just listen to music through it. It is very powerful, and can drive even the most impedance challenged (insensitive) headphones imaginable.
I’d also like to address the Sennheiser HD-800S that many have mentioned. I used to own them but sold them. I didn’t like them at all. Their sound quality is fantastic. But what bothered me about them was everything besides their sound. I know the Grado’s fit kinda weird, as they just lie atop one’s head. If you make a move they’ll fall off. But I don’t wear them out of the house or in bed. They are for serious listening so that doesn’t bother me.
But the Sennheiser HD-800 is MUCH worse. Plus the headband (head strap?) is a pain in the neck to adjust, and often fell apart when I used it. Futzing with the head strap or what ever you call it took my time while I much rather have been listening to music. The closed-back HD-820 that I use instead is similar, but much, much better ergonomically. It fits much tighter on my head, and is much easier fo adjust. And their sound quality is top notch.
Is Mojo2 powerful enough for HD800S?
That is an excellent headphone amplifier. I bet it would have no problem at all. I’ve used headphones that were much more difficult to drive than the HD-800.
If you are still worried about it, Chord does answer phone calls and email, their customer service is very responsive.