OK guys... So, I went out and bought one of these 3015 drivers. I've built two cabs for it including a three way. Initially, I liked the three way but over time it kind of grated on me. The three way cab is around 3 c.f. and tuned to 45 Hz which is a little big and a little low for this driver. I'm keeping it and I plan to try another 15 with the mid and tweet I have, but that's for later... The goal - a standalone lightweight and compact 15 suitable for practice and smaller to medium gigs. Problem is, I find that there are just waaay too much mids and highs with this driver. Comments from the kid's band are not complimentary with either the standalone box or with the three way. "sure is trebly... ewww... stay outta my register!... " The rig is a Lakland Skyline JO to Subway D800 to the cab. Instrument is all knobs wide open. With the amp, input is at or slightly below noon, voice off, all other knobs at noon and master to taste. This results in a very honky, ganky sound (Think Tame Impala - The Less I Know the Better) that is a little over the top for the band my son is playing in right now, which is a straight ahead rock band. The only way to get it set to "ROCK" is to basically boost the low mids to about 1 o'clock and cut high mids and treble to around 9 oclock. Which cuts some very important frequencies and winds up with the bass guitar kinda washing out of the mix. Voice adds some girth to the sound with all other knobs at noon and actually introduces some oomf (boominess?) at around 70 Hz, but the gank remains. (And yes, my ears are a little schwacked from heavy industrial construction for 40+ years, but my kid and his band mates agree there's something not quite right here) Currently, it's in a 2.75 c.f. box (net of ports, driver and bracing) tuned to 50 Hz. I just built this cab. It's corner ported with ribs on the sidewalls, with struts front to back and side to side. Back wall only is lined with mattress topper. I have winisd .950 and it says that this size cab, with that tuning, is the best all around configuration for this driver in terms of low frequency extension and power handling. The dancing rice test confirms tuning at 50 Hz within a range of about 5 Hz on either side of the target frequency. Frequency sweep from 30 Hz to 120 Hz with an online generator begins to produce audible bass starting around 35 Hz. Don't get me wrong, there is abundant bass. It seems there's just too much mids and highs. I have tried out the subway 115 and it sounds fine with all controls at noon with this setup. I also got my hands on a traynor TC115 neo to see how it sounds with another cab and it kinda sounds the same as mine, with a little less "gank". So it's not the bass or the amp. Am I chasing my tail? Should I give up on this driver? Thanks in advance for any comments.