I got d-50mkII and d-250 yesterday - oh god ! d-465 and d-99 were simply waste of my money ! These are in completely new league ! Hard to describe how great they sound. It's like add to d-99 which is in my opinion a bit muddy on some albums (might be because of deteriorated caps - high frequencies don't pass so well, I am thinking of putting some elna silmic II because I have plenty of them) some real BOTTOM END, details and treble, treble so good as on my old vinyls, can't believe what I am hearing right now (listening to d50mkII). D-250 (d-25) is also great and has extremely powerful headphone amp - my senns hd600 are loud at about 2-3 comparing to about 8 on other players, d50mkII has powerful amp as well (I bet they could drive tesla t1 600 ohms), and this is not only loud - it's full of juice with astonishing dynamics, amazing transient, harmonics, air and bottom end, sweet god I admire these players !
I left my d50mkII with external power supply connected for night and realised the power supply is a bit warm this morning, so I guess there are some circuits kept under the steam to provide even better performance, don't know if it's just my hearing after night but I find it even faster, better controlled and coherent than yesterday !
I have an occasion to buy d-100 from my friend in great condition - I can't find any information about this model - dac, amp, spindle motor. Have you ever heard about it and about how does it sound ?
btw. about these crackling pots - don't need to disassembling, just been using it for a while and there is no hint of crackling now, they work like a charm (I know it might be temporary fix) ! Can't be more satisfied !
Thanks for all your support Kaosun !