Hello majorc,
Your description of your current system's shortcomings are remarkably similar to the perceived shortcomings I had with my system as formerly constituted, although I used more powerful ss amplification with my Magnepan 2.7QR planar-dynamic speakers.
I believe your ET LFT8bs are also planar-dynamic type speakers that have the 2.7QRs similar strengths of having fast and detailed midrange and treble performance along with very good, palpable and natural stereo imaging qualities. But I also believe they share similar weaknesses of having restricted rated bass extension, mine are only rated down to 35 Hz, and having rather poor bass dynamics.
About 5 years ago, I bought and installed an excellent solution that dramatically transformed my system by providing the solid,powerful, rhythmic, fast, detailed and smooth bass impact and dynamics, with a rated bass extension down to a flat 20 Hz, that I perceived as being absent from my speakers sound qualities. The system is the Audio Kinesis Swarm system. Here's an Absolute Sound review that provides a very accurate description of what to expect:
https://www.theabsolutesound.com/articles/audiokinesis-swarm-subwoofer-system/
I'm fairly certain this system will perform equally well as a supplement to your speakers and dramatically transform the rhythm, impact and dynamics of your system.
Best wishes,
Tim
Your description of your current system's shortcomings are remarkably similar to the perceived shortcomings I had with my system as formerly constituted, although I used more powerful ss amplification with my Magnepan 2.7QR planar-dynamic speakers.
I believe your ET LFT8bs are also planar-dynamic type speakers that have the 2.7QRs similar strengths of having fast and detailed midrange and treble performance along with very good, palpable and natural stereo imaging qualities. But I also believe they share similar weaknesses of having restricted rated bass extension, mine are only rated down to 35 Hz, and having rather poor bass dynamics.
About 5 years ago, I bought and installed an excellent solution that dramatically transformed my system by providing the solid,powerful, rhythmic, fast, detailed and smooth bass impact and dynamics, with a rated bass extension down to a flat 20 Hz, that I perceived as being absent from my speakers sound qualities. The system is the Audio Kinesis Swarm system. Here's an Absolute Sound review that provides a very accurate description of what to expect:
https://www.theabsolutesound.com/articles/audiokinesis-swarm-subwoofer-system/
I'm fairly certain this system will perform equally well as a supplement to your speakers and dramatically transform the rhythm, impact and dynamics of your system.
Best wishes,
Tim