![]() ![]() ![]() I'm also hoping the L-PAD adjustment makes this point largely moot anyway as it can be "dialled in". This is where the fiddle factor comes in, I didnt calibrate my measurements(they were relative to the woofer response done in the same session), so I've just scaled up my FRD response to look similar in magnitude to Seleniums published one. FRD file from the PDF specs, and used that with speaker workshop and the d220ti+PH612 measurements I already have. I dont have a 12LFA to measure, so I used SPLtrace to make a. The T/S parameters indicate it will play very well with the 120L box I have with the existing ports. The Delta 12LFA looks like it matches very well, and will drop in the existing cabinet with minimal modification. To keep using the existing MDF enclosures (which I quite like) I'm limited to 12" woofers that play nicely in 120.6L (or less) with 2 (or one if I block a port) 10cm bass reflex ports.Īlso theres the actual size of the woofer rebate and hole fitting to take into account, some of the drivers which look really good would mean extensively reworking the rebate and repainting (the Beyma 12BR70 for example, which otherwise looks like it would be great). Without buying the new drivers to measure first hand I've been playing around with software tools to using published data and a bit of guestimation.īefore I go the next step of actually buying drivers and bits, thought I'd post my ideas here to see if I'm heading in the right direction. ![]() I could never get it to match up with the d220ti cleanly at the crossover point, and ended up using a simple first order LP as the best tradeoff. I've been greatly enjoying my econowave speakers this last year, but always thinking I could do better with the woofer, which was an inexpensive Ebay PA driver with very little information available about it. Upgrading woofer in my econowaves : checking out the Eminence Delta 12LFA but it fit what they wanted (cheaper $ fix), and it sounds great. So, this is probably the proverbial situation of going around your elbow to get to your nose. I don't think they'll have ANY problem getting them to sound really good in the church. Unfortunately, I didn't have an original amp/processor to compare to, to see if it was better or worse than the original. Probably not too surprisingly, it sounded FANTASTIC. where it's installed in the church, it doesn't really need much vertical dispersion (I checked). the dispersion is quite limited in the vertical direction. It's running as, essentially, a great big MTM. I built up a crossover (4 ohm woofer section, greater-than-95dB E-wave high section), to try it out. So, what did I do? Since I saw what looked suspiciously like a PT waveguide in there, and a 2431 driver (1.4" throat). have us convert the speakers to passive crossovers, and run an outboard power amp, outboard EQ, etc. The customers (a church) didn't want to pay for new internal plate amps (they had serious problems- probably a lightning hit), and the sound guy for the church just decided to go "old-school". We got in a pair of THESE, with blown internal processor/amps: just the result of a rather bizarre decision on the part of the owner. ![]()
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