x RELIC x
Headphoneus Supremus
It drives my hd650 & k612 flawlessly so you shouldn't be having problems with X1 its only 30ohms...
Not only is the X1 only 30 Ohms, it also has an efficiency of 100dB/mW SPL... indeed an easy load for almost any source. Nothing wrong with personal preference for adding the amp though, for that individual. The X1's needing a 'decent amp' is off the mark purely from a power perspective between the Mojo and the Quickstep. If the Quickstep provides a better listening experience for the person that's different, and down to synergy and tastes. The only thing I would say is that the Mojo's 'amp' is not the issue and it can easily drive the X1's with copious amounts of Voltage and Current output to spare, of course not counting the fact that the Mojo doesn't actually have a conventional separate amplifier stage.
Personal preference and measured performance don't always align. Such is life. Personally, almost every time I listen to headphones or source gear that doesn't measure well I tend not to enjoy them, even if I don't know how they measure before I listen to them.
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