Yes, me. Using Hypex DLCP DSP processor I've successfully equalized Seas Excel W22EX001 to be flat. Now it is silky smooth, natural, effortless, like you prefer to call it... It is crossed at 1550 Hz to Seas DXT, also metal driver with severe break-up issue outside of passband.
Ok, quick question. Did you need to take individual driver measurements to get this right for each driver? I'm wondering about the variability of the peaks and dips.
Very high consistency of these expensive woofers leads to very similiar performance of each. Despite this, I did individual measurements of each becouse of potential discrepancies between each enclosure damping or assembly quality leading to different behaviour resulting from diffraction around the edges (chamfers in my case) . There is temperature influence on break-up frequency which is ommitted in DIY considerations but it is very pronounced. Typical air temperature changes in the listening room can move break-up frequency around for 500Hz. Steep filters are fragile to these changes. If not cross-over filtered, these phenomena could be easily audible. I would not concern about this as I said, they are equalized and then buried down 40 dB below main SPL after LR4 crossover applied. Please not affraid of metal drivers with break-ups. Just use them properly and they will retreat with unusual sound qualities hard to reach for soft-cones.
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Thanks, I never thought temperature could change things around that much. The seas is probably more consistent than other drivers. There is a gradual rise in response of the seas driver starting around 500 hz. Does room temperature differences affect the shape of this curve? I would think this would make equalization more difficult.
No, temperature not affects gradual changes. It affects only peak occuring at ~4.5 kHz. If you are doing digital equalization based on measurements it is easy as it was never before.
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