Investigation of Current Driven Loudspeakers

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    Current driven loudspeakers have previously been investigated but the literature is limited and the advantages and disadvantages are yet to be fully identified. This paper makes use of a non-linear loudspeaker model to analyse loudspeakers with distinct non-linear characteristics under voltage and current drive. A multi tone test signal is used in the evaluation of the driving schemes since it resembles audio signals to a higher degree than the signals used in total harmonic distortion and intermodulation distortion test methods. It is found that current drive is superior over voltage drive in a 5” woofer where a copper ring in the pole piece has not been implemented to compensate for eddy currents. However the drive method seems to be irrelevant for a 5” woofer where the compliance, force factor as well as the voice coil inductance has been optimized for linearity.
    Original languageEnglish
    Title of host publicationProceedings of 138th Audio Engineering Society Convention
    Number of pages7
    PublisherAudio Engineering Society
    Publication date2015
    Article number9292
    Publication statusPublished - 2015
    Event138th Audio Engineering Society Convention - Warsaw, Poland
    Duration: 7 May 201510 May 2015
    Conference number: 138


    Conference138th Audio Engineering Society Convention


    Dive into the research topics of 'Investigation of Current Driven Loudspeakers'. Together they form a unique fingerprint.

    Cite this