Mystery with woofers. Help!

I think the answer is simple---I need jumpers!!! The woofer section isn't powered up! Duh. I feel like an arse, but the question remains---why does the bass sound adequate without the woofers powered up and sub disengaged?

Room.  The room gain can do a lot. 

And woofers stop working for all sorts of reasons.  Shipping can disconnect a wire or (my fave) break an inductor's connection right at the circuit board. 

Of course, next time you have this problem grab a 9V battery to see what is and is not moving. :)

Perhaps the bass sounded adequate because they were acting  like passive cones.

If the info I ran across is correct, that midbass crosses over to the woofer at 65 hz,so it’s actually producing all but the lowest frequencies of bass, which your sub is covering. If you ended up plugging the woofers back in, you may want to adjust the output of your sub.

There are pros and cons to every speaker design choice, but I’m a fan of those crossover points because it puts the whole vocal range in the midbass driver vs splitting it between the woofer and midrange driver. Nearly exactly how my speakers are designed.

p.s.: that crossover point is very conducive to bi-amping.  I'm running tube amps on the midbass and tweeters, and a SS integrated amp to the woofers...best of both worlds.  

Thanks everyone!!

@knotscott Interesting. I think you’re correct about the bass. The midbass was taking care of all but the lowest frequencies, and then crossed over to the sub. This explains how I missed the inactive woofers.

I texted with Dick Diamond of GTT Audio today. He is the former director of sales at YG. He also suggested that I consider bi-amping in the future. In the meantime, I’m excited to get some jumpers connected and hear what the Haileys will produce on their own.