I've being researching the net on amps to get the best match for my headphones (Senn HD600). Unfortunately I want to keep this hobby kind to my wallet, that means, I don't want to build/buy more than 1 amp nor swap my headphones, maybe the next year.
I want something like these in this priority order:
1- Sweet (warmy) Musical mids for clarity on female voices.
2- Fast, defined, precise bass yet musical.
3- natural highs for nice classical music listening
4- enough soundstage to identify instruments position, yet not a far away sounding experience, something on the fourth row at most maybe.
I don't know yet how a tube amp sounds, maybe my chance is on a hybrid amp with 2 different flavour outputs. I tried a Lehmann Black Cube Linear amp on the HD600 and HD650 when I bought my headphones. The HD650 were the most sweet experience with slow music like lounge/new age music, but after listening to all my tunes I decided on the average better performance on the HD600 for an all around use. That's what I'm also looking, an all around amp! Something to recover the sweetness on the HD650, rather something still better; while keeping the tighter bass response on the HD600 which I liked for Trance and Metal music. I listen to about anything!
So far I'm tempted on the Millet Hybrid MOSFET-Max, the MiniMax or even an Aikido. I haven't found anything about the sound on the Aikido, if anyone has something to say about the Aikido it would be a plus. BTW, I need something not "flashy" since it's for my work (I almost not hear music on my house as I'm not commonly there). I beliebe I can hide the tubes on the Millet amps with some MTB Bike spacers lol, the point is I have discarded options like Bottlehead amps for this simple reason.
I read from Tomb on a post that MOSFETs could sound warmer and with more slam on bass than BJTs, but someone else says: "MiniMax is better with Senns while MOSFET-Max is better with Grados" ... oh well ... here is what I believe is the preference on the person, maybe he likes something more balanced. I wrote my experience with the Lehmann and the HD650/HD600 so that someone could help me out maybe what I would like more. Maybe not a Millet and something else? I can't test/try amps on my country before making a decision, I don't know people around on this hobby.
I was also considering a KICAS Caliente, but after reading that a Woo Audio 3 and an AMB M³ are better and that so I believe a MOSFET-Max could be at the level of an M³ or better, I'm considering the MOSFET-Max at the top of my list, help me hear with any impressions on sound please on the HD600. I'm expecting to keep it below the $400 range.