Change Amp or go Integrated

Need help with my next upgrade. I have a Theta Miles run single ended into an Aragon 4004 mkII going to PSB Bronze speakers. Interconnect is AU24 and speaker cable is Signal Audio Biwire.

Considering selling the amp and going integrated.
Plinius 8100
Unison Unico
or
Getting a new amp
PS Audio HCA-2
Marsh200/400
Rogue 88
Rotel 1090

I like the Aragon but am looking for tighter bass and a cleaned up/refined/musical mid/highs.
A Musical Fidelity A3cr was punchy but lacked the bass foundation of the Aragon. Mids/highs were ok.
An Adcom 8502 had much better mids/high-more detail,transparent.The bass though was less prominent.
I liked the Aragon betterthan the above amps.

Should I keep the Aragon and get dedicated lines?

My concern with an integrated is the lack of power. Even felt this was a problem with the Musical Fidelity.

Looking to spend $1200.00 max.

Any other options appreciated!!!