Dual 15 + coax

There looks to be some scope for reducing the depth of the box if you have enough internal volume for the bass drivers?

Slightly off topic, but I came across this the other day - Bennett Prescott sales manager of B&C with a new 2x15 + horn design. Bit (?!) big for pole mounting but sounds very good via utoob - amazing that that it doesn't have any noticeable horn sound on vocals possibly like the Celestion aperiodic driver that removes any crossover artifacts in most of the vocal range.

Still, nicely done and not too dissimilar to the JTR 215RT speakers with the co-axial HF driver.

More progress. I now have 2 boxes. Both have had 2 coats of paint sprayed on and are awaiting a gentle sand and 2 thick coats of paint. I did a test with pole mounting an empty box





The pole is a K&M adjustable with an M20 screw on the base and the expanding ring lock on the top. There is a bit of sway at full extension, but that is to be expected. A single punisher as a base gets the top box just high enough, I will always be using at least 2 though.

I didn't like the idea of a surface mounted pole socket, so I knocked this up out of 3mm steel





It has an M20 nut welded inside, and fixes with 6 bolts into the horn/driver chamber and 2 through to the exterior with a plate on the outside to spread the load.

I had hoped to have the boxes finished ready to use for a couple of gigs next weekend. Unfortunately I can't get another DCX464 driver in time, there doesn't appear to be any stock in the UK.

They are finished. I've been using them since December for live music, 2-400 capacity events indoors and outdoors.

I like them. The midrange is very clear, the boxes are light enough to get up above head height on a pole.

The coax drivers are very efficient, and could easily keep up with way more than the 15s I am using. I do like headroom in the mid and high though.

The 2 boxes work well with 4-8 punishers, crossing over around 90Hz. If I used some upper bass boxes between them and took the crossover up to around 180Hz I could get a lot more out of the 15s.

Why did you chose that specific 15 inch driver? To me its a shame using top of the line compression driver with a budget 15.