Duet15 Crossover Tweak to Match the Room Acoustics

Such cases are very rare though here is a customer who complained about too much bass in his room.
A swap of a resistor (with a one step different value) and here is what the customer wrote thereafter.
BTW, his profile is highlighted in bold…

Before the change:
“I’m only a few hours away from completing the 200 hour break-in period. I’m hearing far too much bass. The speakers are four feet from the front wall and as far out as practical in my 14-3/4′ x 15-1/4′ room. They are 45″ from the sidewalls. The toe-in is set so the speakers ‘ null aims at the first sidewall reflection points. The speakers are aimed at my shoulders. There are floor to ceiling 6″ bass traps in 3 room corners. The fourth corner has a 5′ opening for French doors . Additionally, there are 2′ square x 6″ bass traps on the wall directly behind the speakers’ woofers. My listening is primarily to large scale classical and the jazz. What would you suggest to achieve the correct tonal balance?”

After the change:
“The speakers sound wonderful! I changed out the green bottom resistor as you suggested in the crossover. I was looking for a large-scale sound for orchestral music and I’ve achieved it with the Duet 15’s.
The current set-up, along with the very slight toe-in yields the best timbre in my room. Instruments now all have the correct characteristic sound and the overall tonal balance sounds accurate to me for both jazz and classical music. My judgement comes from a lifetime in music, first as a musician and instrumental music teacher for 14 years, then as a District Manager for Steinway Musical Instruments, Inc for 34 years. I heard live music daily for many decades.