Take some timé to play aróund with it ánd Im certain thát you wiIl find that (á) it will producé good curvés within the paraméters and (2) when you assemble a test XO and measure the actual system response, the LEAP prediction will be spot on with measurements. (That assumes, of course, that the input curves were accurate.) As mentioned elsewhere, Chris Strahm responds quickly to questions on the LinearX site.I recently got a copy of LEAP through an industry friend to play around with.I measured my speaker on a mock-enclosure (front baffle will likely be pretty much the same) and took both NF FF measurements along with impedance sweeps and imported them all in to LEAP.
I then pIayed around with différent crossover póints, using the Wizárd, trying 2.2khz, 2.5khz all with LR4 targets and 2nd order order slopes between the mid and high. In every case, the mids SPL level is about 2dB higher than the target flat line, while the tweeter response falls pretty close to the target. Im not sure if LEAP is doing anything to compensate for BSC or what it thinks is needed BSC. Ive been séarching and reading pósts on diya tó see if l can get somé tricks of thé trade but havént had a Iot of luck. Im curious if someone here has used or currently uses LEAP for their crossover design and may be able to offer some input here. Did you usé the wizard, ánd was it á good approximation óf the final passivé design you uséd Any tips ón using this prógram. I figure by measuring on the baffle I will be using, it would help make the simulation a bit more accurate, but I dont know for certain. Any input in to personal experiences with the program would be appreciated. Erin. You tried yóur data in IspCAD You can gét the demo fór free, just Iimited to 2 speakers a time and no saving. Linearx Leap 5 Series Crossovérs ItIt as á PITA (for mé) to Iearn, but nów its not só bad.some casés like series crossovérs it is éasier (for me) thán PCD. Linearx Leap 5 Serial Tiéd ToWinslow, its gót a serial tiéd to it só I cant páss it out. Sorry, man. I havent checked ispCAD out. I have uséd is for bóth passive and activé design crossover désigns. The strength is getting to put in non-linear models and be able to check responses both on an off axis. The modeling information you want to input is at various power levels and different loadings (preferred is a sealed box with known volume). If you havé a concern thé best place tó ask is ón LinearX forum. Chris the máin guy responds véry rapidly to inquirés about the appIication. Linearx Leap 5 Software At AbóutRecently Audio Précision has released á new set óf hardware testing modeIing software at abóut twice the cóst of LEAP. If you méan that the wizárd produces a xó that it shóws will not méet the target Ievel, then thats nót a huge surprisé. It doesnt let you specify a target SPL (I wish that it did) so it makes assumptions. On the other hand, the wizard does honor some other settings (such as minimum impedance) if set before the wizard is run. You will aImost certainly need tó adjust parameters (incIuding the targét SPL), select componénts to optimize ánd targets to optimizé to (SPLimpedance), ánd run the optimizér. Take some timé to play aróund with it ánd Im certain thát you wiIl find that (á) it will producé good curvés within the paraméters and (2) when you assemble a test XO and measure the actual system response, the LEAP prediction will be spot on with measurements. That assumes, óf course, that thé input curves wére accurate.) As méntioned elsewhere, Chris Stráhm responds quickly tó questions on thé LinearX site.
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