Diy 15 inch box with the box 15LB100-8W

[Mica_antrnica]

Hello i want to build a diy 15 inch pa speaker now idk if the box 15LB100-8W is good for this i have a specications for speaker and i never design a box now i guess that i have to get a winisp and put in that spec and box idk and also i was tinking of using it as a subwoofer for some time is that like going to be a problem?

 

[weltersys]

The 15LB100-8W is a good value speaker, but not much displacement for a "subwoofer".

The lower power 15LB075-UW4 worked well in the SS15 tapped horn, nearly the output of a pair used in bass reflex cabinets.

Post in thread 'Single sheet TH challenge'

2021-04-24 10:05 pm

Brian, indeed. "Normalized from 28,3V" would mean that the sub was measured at the same voltage at 1m distance, then scaled to 1m / 2 or 2,83V.
Well, that rules out my possible explanation of the difference being port compression.

As for the subjective impression of the SS15 vs. measurements: I would instinctively say that the large resonator should lead to little compression. However, at tuning (43 Hz) my SS15 has a sensitivity of almost exactly 100 dB. It reaches a Max. SPL @ 10% THD of 123 dB at that frequency. That required an input of what I measured to be around 50 volts, 600...

• weltersys