Well.....I don’t know. I’ve never heard of that amp.
So you’re using the Denon 10CH amp now - using 9CH.
That Pioneer Integrated is slightly low at 30W.
What about the Denon PMA-800 Integrated amp at 50W x 2Ch into 8 ohms @ 0.07% THD?
https://usa.denon.com/us/product/hifi/amplifiers/pma800ne
I bet at 0.9% THD, it should produce closer to 100W.
But for 8FT ceiling, those 4 ceiling speakers will be pretty close to you and assuming they are the typical 90dB/w/m with power rating of 10W-100W, I think the Denon PMA-800 will do great. And I bet the Denon PMA-800 matches the aesthetic of your Denon POA amp better too.
Another option is the Marantz 140W x 2Ch amp.
You’re using XLR cables? Both the Denon and Marantz amps have XLR.