Thanks for your help and advices, but I'm looking for closed cans as I mainly listen to music through my ProAC D18. I justed wanted a good closed Hi Fi headphone when my wife asked me for some rest after 4 hours of music in a raw... Women.

This is indeed a good idea and I wanted to listen to them at a friend's place who has a dedicated headphone Hi Fi system this week but unfortunatelly it won't be possible.   I'm still waiting for Leben's feedback on the headphone output power  (I've sent another mail today), but I might send...

Ok, I'll PM you directly. Tks for your help.

I understand that it might be the reason why the AP doesn't work on my system.   Neverthelss as the Leben CS600 has more power than the Leben CS300 and since Levlhed made the AP work properly on its CS300, I doubt it. I'm waiting for Leben's feedback on the Headphone output power.

Hi Levlhed,   Thanks for your post and I understand for the threat diversion, no worries. This is such a good news that you drove the AP fine with your CS300 and there is no incompatibility with Leben because I really love those headphone and would have been mad/sad to change.   I really...

  Hi Murray,   Thanks for your help. I don't think the issue comes from the Amp output as other headphones work great with it it (I've tried 4 days ago a Sennheiser 650 and it worked great). Anyway thanks for your tip 

Thank you for your quick reply and help.   I indeed contacted Leben and I'm waiting for their feedback, but as many people on the Forum use the Leben "little brother" CS300 with various Hi Fi headphones brands, I thought there won't be any problem. I agree it might be an amp fit issue, I'll...

I understand, but since it is a Leben CS300 thread, maybe you could tell me the power rating of the Leben CS300 headphone output ? Tks

Thanks for your help.   I think it is an issue with this particular headphone because my Leben Amp impedance output is set to 8 ohm and from what I read the AP Impedance is 50 ohm, so it should work fine. I'm going to have it tested by a friend who has a dedicated headphone Amp / Hi Fi system...

Hi all,   This will be my first post on the Head-Fi Forum, very pleased to join you after having read many threads here. Important to know that I'm a full Newbee in "cans" as I've been mostly listening to music for Hi Fi with Speakers.     Just a quick sum-up of my configuration : -...

Hi all,   This will be my first post on the Head-Fi Forum, very pleased to join you after having read many threads here. Important to know that I'm a full Newbee in "cans" as I've been mostly listening to music for Hi Fi with Speakers.     Just a quick sum-up of my configuration : -...