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Did anyone else get a bad/loose power cable? My amp sounded bad, loud humming) but I noticed the power cable felt loose so I swapped it out and no more humming at all.
Also, does anyone recommend a tube (s) specifically for Hifiman 400i headphones? My grados sound good but my Hifimans sound muddy and just not right.
your 400i's use planar magnetic drivers, which can work with tube amps, but don't scale with them. Anything past 20% on my tube amp causes my 400i's to give an insane amount of distortion on the low end.
i only use my 400i's directly out of my DAC or with a solid state amp.
This is my experience as well with the 400i and 4xx. I stick to solid state amps with those headphones. 6xx for the Dark Voice.
Thank you both for the replies. This amp is confusing me.
I see other reviews of people that love it with magnetic planar headphones (go over to reviews and see the first one) but mine sounds like total crap. My Grado 60's sound pretty good but I just broke out my Superlux HD 681's and they have never sounded better.
I might need to get my ears recalibrated.
I don't think it's your ears. I also tried a set of Mayflower TP50 mk III and they were not good with the Dark Voice either. That said, those headphones sounded awful to me. A sibilant mess. Could have been a bad tune. I returned them.