I spent some time today comparing my two different flavors of Jack 15. One is Baltic Birch, 3015 loaded. The other is Auraco, Delta Pro 15 loaded. Neither have a HF section, both have the low pass filter per the plans. Both are sprayed Duratex, pet screen on the baffle only.
The BB/3015 cab weighed in at 53 lbs. The Auraco/DP cab was a portly 61 lbs.
My unscientific testing consisted of "entertaining" my neighbors to about 3 hours of continuous bass solos at war volume from my back yard. I was playing my p-bass with flats through a Traynor YBM-1A, (90 watts, all tube)periodically switching the cabs and also playing through both simultaneously.
I was actually a little surprised by the audible difference between the two cabs. The 3015 was much deeper voiced and really gave a sense of "authority" to everything I played. The Delta Pro seemed to be a little more focused and detailed with just a hint of break up when pushed. They are close enough in tone however that I couldn't pick out one cab from the other when they are stacked.
My listening test confirmed that for me 3015 is the right choice for a single stand-alone bass cab. I'm pretty content with the Delta Pro in the second cab to use when I need a second cab, especialy since I'm using a relatively low power head.
Battle of Jack 15 bass cabs
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- Location: New Braunfels, TX
Re: Battle of Jack 15 bass cabs
Property values just went down 20% over a 12 block radius.Preston wrote: testing consisted of "entertaining" my neighbors to about 3 hours of continuous bass solos at war volume from my back yard.

Now we know what caused the housing crisis.....bass players.

6 - T39 3012LF
4 - OT12 2512
1 - T24
1 - SLA Pro
2 - XF210
"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."