Ok, it's look like Cambridge Audio support does not like when someone "reopen" a ticket...
I asked to double check the response and added the stats from my schiit and the mention from wikipedia saying most of the current amp has 0.5 - 50 Ohms.
He kind of said the response he gave me was correct and that I should find a dealer to test my headphone. Then close the ticket.
What's funny is he also said this :
The Minx Xi's headphone amplifier is derived from the main section, hence the higher impedance.
The spec from the minx xi manual says for the speaker output (which I presume is the main section):
40 watts RMS per channel (into 8 Ohms)
47 watts RMS per channel (into 6 Ohms)
55 watts RMS per channel (into 4 Ohms)
I'm not sure what to think... I wrote an email to the dealer where I bought it asking the specifications of the headphone jack. I hope he will be able to give me more informations. But in the mean time, I'm in the dark...
OK, back to the headphone!
@Hansotek
Great suggestions! A bit over what I can pay unfortunately.
@money4me247
Thank you for the kind offer!
I currently own a pair of Audio Technica ATH-M50x.
If I would have to select only a couple of song to compare, I would say these one :
- Blind Guardian - Nightfall (from Nightfall in Middle-Earth)
- Bolt Thrower - The Killchain (from Those Once Loyal)
- Be'lakor - Venator (from Stone's Reach)
- Steamboy Original Soundtrack - The Chase (not metal but great OST!)
I absolutely need a closed / circumaural headphone since I will use them around other people. I can probably strech my budget to 350$ US (420$ CAN). Not higher...
Thanks!