Home Speaker Asylum

General speaker questions for audio and home theater.

concept for crosoverless speaker

Found these drivers at Zalytron- focal 7w4411 and the high frequency dropoff at 3khz is like a second order crossover. The tweeter can be a ribbon tweeter like the Hi-Vi RT1C whose specs are at madisound:

https://www.madisound.com/store/product_info.php?cPath=45_229_236&products_id=1486

This ribbon drops off at 3.5khz and has great off axis dispersion as does the midrange. The midrange has a 10 ohm nominal impedence making it perfect doubling as an mtm with a cap and potentiometer on the tweeter to control high frequency energy, it seems a perfect match and able to run without a crossover. As a sealed or even vented unit the mids should give tight bass down to 50 hz, covering the entire vocal range without the fog of a blocking cap and inductor.

Any builders out there want to put in their 2cents on whether they forsee problems with the high 3-3.5khz crossing point in an mtm rather than tmm format? Also, may be better to put in an acoustic suspension enclosure to get a quick drop off of the bass to easily be supplemented with a sub.


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Topic - concept for crosoverless speaker - ChasLieb 11:05:05 11/25/10 (10)

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