Hello Beoworld community, I’m seeking detailed information about the woofers used in Bang & Olufsen BeoLab 4000 speakers, specifically those with serial numbers 8480260. I’m particularly interested in the following technical parameters: Thiele-Small parameters, especially: Fs (resonant frequency) Qts (total Q factor) Vas (equivalent volume) Xmax (maximum linear excursion) Any information about the woofer’s construction, such as: Cone material Surround material Voice coil details The exact model or part number of the woofer, if available Any other technical specifications that might be relevant If anyone has access to service manuals, technical documentation, or has experience working with these specific speakers, I would greatly appreciate any information you can provide. Thank you in advance for your help!
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