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High Frequency Compression Driver Evaluation
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<blockquote data-quote="Michael John" data-source="post: 51593" data-attributes="member: 830"><p>Re: High Frequency Compression Driver Evaluation</p><p></p><p></p><p></p><p>Hi Art,</p><p></p><p>Once again, thank you very much for all the info.</p><p></p><p>Re the 4592, BMS describe it as a coaxial arrangement with two different size voice coils and requiring a crossover - passive crossover or active. (We updated the horns in our screening room with coaxial BMS units and BMS supplied passive crossovers.)</p><p></p><p>From the literature I've seen, the JBL D2 uses two same size annual diaphragms that operate on the same frequency range. The diaphragms push/pull towards/against each other and feed a slotting waveguide with tunnels towards the center and then outward, along the centre axis and out a single exit.</p><p></p><p>Cheers,</p><p>Michael</p></blockquote><p></p>
[QUOTE="Michael John, post: 51593, member: 830"] Re: High Frequency Compression Driver Evaluation Hi Art, Once again, thank you very much for all the info. Re the 4592, BMS describe it as a coaxial arrangement with two different size voice coils and requiring a crossover - passive crossover or active. (We updated the horns in our screening room with coaxial BMS units and BMS supplied passive crossovers.) From the literature I've seen, the JBL D2 uses two same size annual diaphragms that operate on the same frequency range. The diaphragms push/pull towards/against each other and feed a slotting waveguide with tunnels towards the center and then outward, along the centre axis and out a single exit. Cheers, Michael [/QUOTE]
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