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Detection of Two Subwoofers: Effect of Broad-Band-Channel Level and Crossover Frequency

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The use of multiple subwoofers can be advantageous compared to a setup consisting of a single subwoofer due to the cancellation of room modes. We investigate the effect of subwoofer crossover frequency and program material on the perceived localization of bass frequencies using single or dual subwoofers, via a listening test. Test results show that dual subwoofer setups are harder to detect than single subwoofer setups and also exhibit the well-known relationship between crossover frequency and difficulty of localization.

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