Ah right, I forgot that the Master 10 is a straight power amp with no pre-amp function. I should have done a bit more research before posting.With the Master 10, it was set to a low volume level (15-35/99 I think. Lower than 15 seemed not to be good), then I use a Chord TT2 as the source/volume control. The LCD-R actually needs near zero power (50mW to get to 120dB!). IMO the problem is that at 2 Ohms, anything that can't deliver near instantaneous current (ie: anything not a speaker amp, or designed as one but with lowered gain for headphones) will result in weak bass. I think this is because, compared to a 32 Ohm headphone, it requires ~4x the current. I even found that the Studio Six, which should be fine, can't drive them well enough to give good bass either. Someone better versed in amp design can correct me if my understanding isn't right.
I only have a Master 9 (which I haven't tested them with for a while) and an R-27HE, which works well with them (though I haven't tried movie soundtracks!) so I'd go with something along those lines with a large volume range. That means Master 9P, HE-9, Ragnarok or similar.
Thanks for the insight, always appreciated from you. I may give it a whirl at some point with the 700i which has insane ranges of pre-amp volume control options and is meant to handle 2ohm speakers, but it makes a lot of sense that amps really aren't prepared to just be happy with a constant 2ohm continuous load. 50mW for 120dB is nuts and it's obvious that the LCD-R barely needs much to get them going, hence my fear of introducing a 500W into 2ohm load. I might have to look into a resistor setup vs just plugging them in to the 700i with speaker taps.
They sound decent out of the Jot-A, but we all know that there is more to be gained with a better amp. I just don't want to blow up expensive (and exclusive) headphones or an amp.
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