NAD M-33 or Hegel H190

I love the convenience of my NAD M-33; it is the Swiss Army Knife of integrated amps. But ignoring the convenience for a moment, I feel I'm missing something in the music. Sound stage and imaging to be exact. The NAD is technically amazing, but the music somehow sounds "grey". I'm told the Hegel H190 will provide what I'm looking for but there is no way for me to preview the Hegel at this time. Should I trade my NAD M-33 for the Hegel? The complication in trading means I must buy a streamer for Tidal and the I/O on the Hegel is very minimal when compared to the NAD. For instance, I have two sets of speakers and the Hegel has only one set of speaker connections which means I must find some way to split the signal... Any thoughts on these issues would be appreciated.