4.15.2: Equipment Last updated Mar 8, 2021 Save as PDF 4.15.1: Introduction 4.15.3: Procedure Page ID33917 James M. FioreMohawk Valley Community College ( \newcommand{\kernel}{\mathrm{null}\,}\) 1 Sine wave generator 1 Audio power amplifier 1 PA loudspeaker or subwoofer capable of high output in the 40 to 150 Hz range 1 SPL meter Rolls of colored tape