Speaker recommendations for MC275


 Can anyone recommend a good speaker match for my McIntosh MC275 VI?  (Mac c2200 preamp)

Currently have the original B&W N804.  I’m looking to upgrade.  Budget is max. $12K.  New or used.  My room dimensions are 21’ x 12’ x 8’ H.  
vilet
JBL 4367 is the ideal candidate for you. Your room is the perfect size, your budget just right. And many, many people, including myself use McIntosh with them.
vilet
Can anyone recommend a good speaker match for my McIntosh MC275 VI? Currently have the original B&W N804.


Not the best amp for these speakers, they have a nasty load in the bass.

With the 275 you "ideally" to get the very best out of it, you want a speaker that’s 8ohm and doesn’t dip too much below 6ohms and has less than 40’ - phase angle where those impedance dips are, because it "can" make the impedance look twice as bad to the amp.

Do your homework and look at all the floor standers Stereophile has done "impedance" (solid line) and "-phase" (dashed line) graphs on
https://www.stereophile.com/taxonomy/term/108

And choose one that’s similar to this, where the solid impedance line, doesn’t dip much below 6ohms for 20hz to 20khz and the dashed -phase line doesn’t dip below 40 degrees at those 6ohm dips. Like this speaker.
PMC fact.8 signature
https://www.stereophile.com/images/420PMC8fig1.jpg (This 1st in line one just happens to be $12k omen??🤦‍♂️}

Cheers George
Any of the Nola Viper series mate extremely well with the MC275 mk vi. I run the Viper 1AX with the AlNiCo drivers/Mundorf Silver/Gold oil cap upgrades and it is a match that is tough to beat in shear musicality. Of course, speakers are a personal choice so YMMV. 
here in whittier california, there's 'hifi haven' which has been in business since the late 50's! they favor 'martin logan' speakers! is this a good match??
I know this is late & the speakers have likely been bought, but I have a MC275 pushing a pair of Sonus Faber Olympica Nova V’s and the sound is magnificent.
Definitely a vote for Spender D9’s too, but check out the Magico A-3’s, Wilson Sabrina(used) or KEF LS 5o. The Vandersteen Treo CT should also be considered as well IMHO. You may appreciate the new B&W series as well. IMHO All depending on room size and preferred listening levels.
If i am allowed to mention a competitor, there are a pair of mint Proac Response 2S’s on ebay as we speak..


I’m new enough to this, that I haven’t quit figured out all the details necessary for pairing amps and speakers, but it was it was recommended that I strongly consider the MC275 to pair with my Spatial audio M3 TriodeMasters from a source I trust.