Stereo Amp recommendations for Legacy Audio XDs

Current system:

• Legacy Audio Focus XD's (Active 750W Class D) 
• Wavelet II (DAC/DSP)
• HiFi Rose RS130 w Roon, Tidal & Qobuz

Will continue to use the Active Class D for subs, but ready to insert a stereo Amp to power the treble and mid-range. Speakers can be changed to support this setup and Wavelet will handle the cross over. I don't want to change the Wavelet or purchase external DAC as I've only had this system for 3 years and don't have the budget to do this.  

My goal is to hear significantly more accurate representation of vocals, piano and the like without changing any other component listed. I'd like to hear from anyone who has the XDs with Wavelet and has done this already and what the results were and recommendations. 

Budget 4 to 6k for Stereo Amp.

Thanks