Driving TAD CE1s (Upgrade from Kinki to Gryphon?)

yup. now you can see the issues you have below Schroeder (mid bass and kick presence is recessed heavily)

You can start experimenting with speaker placement from front wall. 

the whole process is very iterative so keep at it. start with speakers as close to front wall as physically possible and then move your seat front and back with speakers in this fitst position and measure

then move speakers 6 inches fowards and then remeasure again at your seated place, front and back and do till you’re roughly got measurements from very close to you current positioning of them

then overlay them in REW to determine the best balanced one

But the upper treble tapering off concerns me unless your speakers are off axis from you listening position. try pointing them on axis at your seated position without toe out . you can redo the measurements to make sure that wasn’t a bad measurement.

REW can have some buggy measurements.

Also if you can uninstall REW, reinstall, follow this setup guide before redoing - https://youtu.be/F-T_lZ3KJjU?si=2lwDa2r3zifZg4xd

but that all aside, you’re demanding a lot of current from your amp as I already alluded to in my previous comment so maybe a new amp fixes that and the MC611 are the strongest current stabilised monoblocks I can recommend handily @darkknight8586 

you can use 1/12th or VAR smoothing

@kofibaffour 

Thank you very much for the advice. I’ll try adjusting the speaker placement as your suggestion.

During the measurements, the Kinki actually went into protection several times. On the VTL, the volume was around 40/95 on the dial, and the Kinki started turning red when sweeping around 35–50 Hz. Because of that, I had to lower the volume to about 35 to complete the measurements safely.

At the moment, I’m considering a few power amplifiers that should handle impedance more confidently:

• Accuphase A-250
• McIntosh MC611
• Gryphon Antileon Signature
• Luxman M-10x
• Audia Flight Instrumento No.4 MkII

All of these are available at roughly the same used-market price in my area.

Hmm.  Not convinced kinki is culprit...your speaker isn't all that much a difficult load either

Do you have a different preamp laying around, preferably SS and without any tubes in it this time? If so, hook it up and crank it up, see what happens.

ng fast drum/bass track with moderate loudness, the Kinki turned red and shut off. I made some measurements, and the current Kinki B7 can not withstand the CE1s if it reaches down 35Hz too often. And it never happened with Scala, that’s why I also want to upgrade the power amp also.

@deep_333 Yup, the same problem occurred while I changed from the VTL to Parasound Pre (Pure Solid State). So I guess the problem is coming from the Kinki. Both VTL/Parasound + Kinki combo played normally with my previous Focal Scala Evo

Add a Coda 16 to that list, it can drive anything. Class A.