New setup


Hi, I am new in the audio world.
My setup is Aurilic Aires G1 connected to a DAC, and the DAC connects to a Marantz Av 7012. My speakers are all Klipsch: Front 8060 and subwoofer and center.
I would thinging to improve the quality of the sound buying an integrated amp, if it is possible. I have been doing some research (my budget is around $5k) my choices were: Accuphase e380; Anthem STR and Mcintosh MA 5300.
Can anyone help me with this decision? Is it worthy?
juliano32
Among the three brands you listed, Accuphase would be my first and last choice....I currently own E-650.