Move From AVR to Integrated?

You have committed the fatal error of buying speakers less than 92dB. There's solid reasons I would never even consider yours at 86dB and now you know what it is: like feet cast in concrete you are going nowhere but down. A now tragic decision since you would have your choice of many, many fine amps had you only speakers 92dB or better. See how critically important this is?

Okay, water under the bridge. Smart thing to do now is accept your mistake and resolve to never repeat again. Realize your current speakers are the problem, even worse than your receiver (which yes is a dog, not yours in particular, they all are) and work on finding a really good integrated amp.

Honestly I would not even factor those speakers into the equation. They are like Fredo: dead to me. 

Also realize the nature of power being logarithmic means a 50 watt amp is only 3dB less volume than 100 watts. So you can forget 100 watts. Which you (and everyone else) should anyway. Watts aren't even watts anyway, you will find out if and when you get a proper tube amp. 

Focus, as always, on sound quality first and foremost. How many watts you get are pretty much beside the point. Because when you go shopping for proper speakers, 92dB and up, even better 95dB and up, anything 20 watts and up will be plenty.

Listen to the Anthem line.
I don't have any recent experience with Denon, but I do with Onkyo and the Anthen's are sooo much better.

Best,
E

@millercarbon I am still in trial period with these and love how they sound. I am aware of how sensitivity works logarithmically with power, but didn't realize I would have a problem. However, I am probably limited in my choices within my price range for sensitivity that high. 

Check out Anthem.

Just a few thoughts.

Without having heard one so far, I would check if NAD has anything that would check most of the boxes. crutchfield does offer a return period so you can check how well it suits you and your speakers.

I am not sure if this is what you are looking for, but NAD D 3020V2 specifications mention...

"The sub output is equipped with a 100Hz low-pass crossover."

They also have NAD D 3045 model but check if it has what you want.

Both are well under $1200.

By the way, many people play speakers with impedance like yours with less than 100 W amplifiers with good results. Although Watts are Watts, do not get stuck on their number quite yet. Home trial will resolve your doubts, one way or another.