Can the above situation be improved?
Someone says yes. Put in a charge coupled passive crossover. Another says put in updated drivers and an updated passive crossover.
This will improve the refinement of the system but it won’t fix the underlying issues holding back the system.
In my practice of looking at these systems in use l evaluate the actual operating conditions.
Typically such a system is used in a small room at a distance of 2.5-3.00 metres at a typical loudness of 93 db spl from each loudspeaker.
The power amplifiers are two stereo K1 Crown power amplifiers purchased off EBay. They are rated at 350 watts rms into 8 ohms per channel. The amplifier gain is 31.55 db ref 1.4 volts input signal. SNR 100 db below rated power.