ANSI/CEA 2010-B 2014 Sequence for Subwoofer Maximum SPL
This sequence measures the maximum peak SPL of a subwoofer according to ANSI/CEA 12010-B 2014
Introduction
This sequence measures the maximum peak SPL of a subwoofer according to ANSI/CEA 12010-B 2014 as described in Section 7 of the standard document. It is recommended that the user obtain a copy of this standard to familiarize themselves with all its requirements as they are extensive. A copy of the standard can be purchased here.
In this test, 1/3 octave band limited tone bursts are presented to the subwoofer across a 3 octave range from 20 Hz to 160 Hz. At each frequency, the stimulus level is increased in +3 dB increments until the harmonic (and non-harmonic) distortion and noise (HD+N) exceeds the specified threshold. The level is then decreased by 3 dB and the test continues with level increments of +1 dB until the HD+N threshold is again exceeded. The peak SPL of the fundamental at the last passing test level is recorded and the sequence continues to the next frequency. Peak SPL values are weighted according to the power spectrum defined in the standard and the Average Weighted SPL and final Broadband Peak SPL calculated as specified.
Required Software
- SoundCheck Plus Version 21 or later Part # 1102
- Equation Editor post-processing module Part # 2012
Required Hardware
- Audio Interface – Listen AudioConnect 2 or similar Part # 4047
- Measurement Microphone – Listen SCM or similar Part # 4002
Setup Diagram
Hardware Setup and Calibration
- Connect output 1 of your audio interface to the input of the subwoofer.
- Connect the microphone to input 1 of your audio interface.
- Place the microphone 1 meter from the subwoofer in a ground plane configuration, as per the standard.
- Calibrate the microphone as instructed in the SoundCheck manual.
- Adjust the subwoofer gain to maximum, as per the standard.
Get Sequence
Download Sequence (zip file)
Download Sequence documentation (PDF)
