Help chosing an integated amp

they are both very very good, excellent performance in absolute terms and terrific values for the cost -- each is built very very well, especially the kinki, which is designed in a brilliant modular fashion

they both have prodigious power (you did not say your room dimensions and speaker of choice) to drive most if not all speakers to good levels in reasonable sized rooms

to my ear, the kinki has a purer treble than the mf but a slightly more recessed midrange, both have outstanding bass, mf has a tiny bit to lower treble forwardness and a slight fine grain (to me sonically the mf units to buy are the older ones, say a308 series, or the ones with a mu vista front end, what lovely sound)

you are right, kinki lets you roll op amps, in my ex m1 using sparkos made the sound even purer, cleaner and a touch richer

the kinki is from a chinese company, made in china, with a service center in texas

mf gear is assembled in taiwan, not sure where their usa service center is, i am sure their current importer has one or more usa service partners do any warranty or repair works as needed

Save a little longer and get either a Gamut to a Hegel 390.

Hi, my advice would be to forget any of those mentioned above and look for a Pass Labs. INT-60.
It is on another level and capable of extracting every last ounce of performance from your speakers. It will generate heat and likely be physically larger than either of the two you've considered, but is superbly built and you won't believe the sound quality whether you play at low volume or giving it the full montey.

I've had Musical Fidelity for over 20 years and extensively modified and upgraded them (and helped others do the same), yet wouldn't draw a parallel with the Pass.

If you're patient you should be able to obtain the Pass second hand for not much more than the new cost of the MF you mentioned.
US built and an excellent company to deal with.

I have the MF M6500i and like it alot. It’s a dual mono design with balanced inputs. My speakers are not hard to drive and I don’t know if yours are. I have to crank it to 70% to get loud sound, 80% is about as loud as my speakers can tolerate or my ears for extended listening. But it does not have much distortion that I can hear. Your speakers are very good, you may want to look for a better amp, like was suggested to do them justice and get the best performance from them.

Did you like the sound of your bridged mono blocks?  Thats how the MF is set up.  Its a 4ch amp running in a bridged dual mono configuation.  If that worked well for you I'd lean towards the MF.