Then there were 2


OK I have 3 amps on my short list but one is not available due to supply chain issues.They are ARC Ref75SE, Rogue Stereo 100, (and not available is Quicksilver Mono KT/120)
Question sin it is down to the Rogue and ARC are the comparable (or as they say a coin flip?) or is one considerably better than the other.
I like the fact that the ARC use KT150 and the bias is accessible on front panel.
jimbones
One thing to note if using the RP7 as a pre, (from Stereophile's measurements):

" As a result of the increased output impedance at low frequencies, the RP-7's response drastically rolled off below 400Hz into 600 ohms, reaching –3dB at 200Hz (fig.1, cyan and magenta traces). The RP-7 should not be used with power amplifiers having an input impedance much below 30k ohms. Into 100k ohms, however, the RP-7 offers a flat, wide-bandwidth response with an upper –3dB frequency of 170kHz"

Keep in mind the input impedence of the power amp you will be using with it.  I have an RP7 and a Stereo100 and the match is lovely, as it should be with the same brand.
Go with the ARC, better sounding, higher resale value, etc.  The Rogue is for value consumers, the ARC is for music lovers.
my own 2 way speakers two MW16P and TW29R Satori drivers.
Is that between 2 cabinets or just in 1?

Do you have any idea of the efficiency and impedance of the speakers?
In a room that size 100-130 watts will work if the speakers are 92dB although you'll be able to run the amps out of gas if you really push it. If the speakers are 4 Ohms you might need more power.
@yogiboy yep spoke to mike, he has a new model called KT mono but he cant deliver due to parts shortages. V4 also toast.
@atmasphere i estimate the efficiency at 90db-92db. There are 2 woofer in each cabinet. The woofers themselves are 90db. but with 2 in parallel it is higher but I dont have exact measurements of efficiency. speakers are 4 ohm.