Audio Knowledge Base

Chronological index of factual notes, concepts, and references related to audio systems and experiments.

Concepts & Theory

[2026-01] [WIP] Subwoofer Acoustic Principles – Notes on low-frequency propagation
[2025-08] [NEW] SPL vs Sound quality – Finding the Acoustic Balance
[2024-03] [OBSOLETE] Early Amplifier Theory – Historical reference only

Measurements

[2025-11] [NEW] Home SPL Tests – Recent room measurements and results
[2025-05] [WIP] Car Audio Frequency Response – Ongoing calibration logs
[2023-12] [OBSOLETE] Vintage Speaker Measurements – Superseded by new methodology