Amp to Add Dynamics & Detail to 'Polite' Speakers

There are many ways to accomplish what you wish to do, from changing the speakers, amp, preamp, source or even cables. Also, subtracting damping materials from the room and adding more reflective surfaces could also help liven up the sound.

I was faced with a similar dilemma several years ago, the speakers I bought sounded great in the dealer's showroom, but dead in my room. I called the dealer and talked about this, and it turns out he was using silver cables. I had tried silver cables a few times previously with no success, but when I tried them with these speakers they worked great.

As for your original question regarding amps, Bryston makes powerful SS amps that sound like what you are looking for.

Would it be considered rude to actually state what loudspeaker you are talking about?

What else can be done to push a system in this direction

It would be helpful to know what components are in the system.

The general presentation of switching amplifiers may be working against you (and I don't mean this in a derogatory way).

The switching amplifiers I've owned didn't like silver anything. Check out NuForce cables. When I upgraded my AC mains to shielded 20 amp dedicated there was a noticeable improvement.

Also, when I used tube preamplifiers in front of switching amps I found I was listening to the preamp lower the resolution and transparency and masking my speakers shortcomings. It took a substantial speaker upgrade before I realized this.

IMO, switching amplifiers are ruthlessly revealing and many blame the amplifiers rather than poor system synergy. Class D can be economical but it's simply not easy. This is why I still use nCores in my studio. I've returned to tube amplification in the main system. In both cases I've always used subwoofers.