I visited Anthony late last night & borrowed his new center speaker and also borrowed a modified Sakura amp for evaluation.
The center speaker is composed of 2 6.5" midrange & 2 tweeters. Measurements as follows:
L= 26"
W=12" (13" with grille)
H=10"
Weight = 11.5kg or 25lbs.
First 2 pics shows my B&W LCR60s3 on the left & Anthony's on the right:
Here it is on my rack - its huge!
I believe it needs more tweaks as I was surprised to find out that my B&W LCR60 with only 5.25" midranges was more powerful, open and transparent.
Anthony - kindly check the sensitivity as well as the crossover of the new 6.5" center speaker, baka may work around pa.
If not, one may need to re-calibrate their AVRs to a higher gain setting.