Surprisingly, JA seems to have picked up on this as well:
He usually misses or omits issues like this in the past. This cap is helping maintain a rather consistent slope, with none of the usual lower bass bump speakers often had for toe-tapping. Looks like YG’s choice of driver had some limitations, and he has designed the woofer crossover like a midrange, with filters above and below.
Why? I don’t know, of course, but it could be two things. 1, there was a bass bump he wanted to tame, 2 he’s genuinely worried about the excursion and distortion lower frequencies will cause that driver. Interesting set of compromises, lots of 7" ish over the shelf drivers wouldn’t need this.
Definitely a speaker begging to pair with subs.
"Note the increasingly capacitive phase angle below the sealed-box woofer-tuning frequency of 60Hz, which suggests there is a high-value series capacitor in the woofer feed. "
He usually misses or omits issues like this in the past. This cap is helping maintain a rather consistent slope, with none of the usual lower bass bump speakers often had for toe-tapping. Looks like YG’s choice of driver had some limitations, and he has designed the woofer crossover like a midrange, with filters above and below.
Why? I don’t know, of course, but it could be two things. 1, there was a bass bump he wanted to tame, 2 he’s genuinely worried about the excursion and distortion lower frequencies will cause that driver. Interesting set of compromises, lots of 7" ish over the shelf drivers wouldn’t need this.
Definitely a speaker begging to pair with subs.