DB is a bass player. I always tend to accept a bassist's opinion of how low freqs sound during playback before most anyone else.

He obviously can hear the time smear. If he can hear it, I seriously doubt that it's a 1ms delay that he hears.

Time smear does NOT show up on a FR graph.

It would be great to think that a phase knob on a commercial subwoofer's plate amp will solve the problem.

Hopefully, DB will let us know.

BTW, I didn't say that I think PEQ is a bad thing. I've used it for many years in my bass guitar rig. I use it to alter the input signal to achieve a particular sound. Never to compensate for a bad room (nor does any studio I've ever been in).

I find the subject interesting, is all.