Compact PA Sub-Woofer

Compact PA Sub-Woofer

SRL Loudspeakers

Project Category:

Project Level:

Project Time:
8-20 Hours

Project Cost:
$100 – $500

Project Description:
This project entailed building two (2) 15″ PA sub-woofers utilizing the best materials, components, and construction techniques.

Design Goals:
Build an enclosure that had very high SPL, power handling, and excellent fidelity. Maintain small size and weight while still having relatively low Fb and high SPL.

Driver Selection:
290-598 – Eminence Kappalite 3015LF Neo 15″ Speaker Driver

Enclosure Design:
5/8″ Baltic Birch plywood. Entire enclosure is held together with beach-wood biscuits,staples, and glue. This method while taking longer actually ensures a stronger bond and zero chance of vibration and resonant frequencies from fasteners coming loose.

The only fasteners that were used were 10-32 T-Nuts and grade 8 SHCS’s to hold the drivers in place. Truss head screws were used to mount the Penn-Elcom handles and jack dish into place with foam gasket around the flanges.

Crossover Design:
Crossover was electronic by choice of Ashly Protea 3.6SP

While this project was very time consuming, it yielded a product far superior than any big name sub-woofer that could be purchased. We utilized the finest materials, construction methods, and Eminence Drivers for a high quality product. We also produced a sub-woofer that was lighter and more powerful than anything that could be purchased.

About the Designer:
SRL Loudspeakers (founded 2017)

We were founded on guitar iso-cabinets and quickly moved into designing and building sound reinforcement cabinets for DJ’s and mobile musicians. While lead times aren’t our selling point, our quality and tonal characteristics speak for themselves.

Project Parts List:

Eminence Kappalite 3015LF Neo 15″ Speaker Driver
Acry-Tech DuraTex Black 1 Gallon Roller Grade Speaker Cabinet Coating

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