I really liked the sound but they didn’t have the bass impact that I knew I could get from dynamics. And I balked at the proposition of having to spend ~5K on an amp to get the best from them (and still not being sure if the bass kick would be there).
So I decided to step down a rung or two on the ladder and go back to dynamics. But it’s worked out OK with the LCD3.
Ah, understandable. From what I've heard of the 007 from various Stax amps, they are polite/soft sounding although very refined and detailed. Not for everyone and definitely not suitable for harder music. The LCDx would be my recommendation if one primarily listens to rock or metal.
Back to the topic at hand, I have yet to hear a tube amplifier brings the LCDx to their full potential, even including TOTL Eddie Current, Apex or WooAudio offerings. Solid state is the way to go with these as this really opens up their sound. At under $1k budget, if you can commission someone to build you a simple 2-channel β22 that would be the way to go.