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Aug 30, 2026 | 0 comments

Carlsson Speakers: The Ortho-Acoustic Idea That Made the ...

A practical history of Stig Carlsson's Ortho-Acoustic loudspeakers, from the Sonab OA-5 and OD-11 to the wall-coupled OA-50, OA-51, and OA-52.

Aug 07, 2026 | 0 comments

Building a JBL 2420 External Wooden Horn for 12- and 15-I...

Learn how to build and integrate a JBL 2420 wooden horn module with 12- or 15-inch full-range speakers — covering inspection, crossover, placement, and measurement.

Jul 31, 2026 | 0 comments

JBL Control 328C: From Commercial Ceiling Speaker to DIY ...

Published by iwistao · DIY Audio What makes this 8-inch coaxial compression-driver system unusual, why it attracts Ojas-inspired builders, and what to verify before designing a cabinet. Table of Contents...

Apr 28, 2025 | 0 comments

The Manufacturing Process of a Speaker Driver

The speaker driver is the core of any audio system, responsible for turning electrical signals into sound. Whether it’s in a pair of high-end headphones or a massive concert sound system, the way a speaker driver is made plays a major role in the quality of the sound produced. Here's a closer look at how a speaker driver is manufactured.