CANT Posted March 9, 2019 Share Posted March 9, 2019 Can be used to convert Cornwall into 2way... cheap too https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F183559125372 Quote Link to comment Share on other sites More sharing options...
geoff. Posted March 10, 2019 Share Posted March 10, 2019 Very interesting... What do you think these would cross at with a 16 ohm HF driver? Quote Link to comment Share on other sites More sharing options...
Heaterman Posted March 10, 2019 Share Posted March 10, 2019 Will these work properly with the dual driver 904 base bin? Or will the lower 4 ohm impedance change the characteristics? Quote Link to comment Share on other sites More sharing options...
geoff. Posted March 11, 2019 Share Posted March 11, 2019 Gone now anyway... The closest specification I could see was 900hz crossover in the active version. Probably 1000hz passive. If anyone reading this got them to try out, please let us know how they worked out. Quote Link to comment Share on other sites More sharing options...
CANT Posted March 11, 2019 Author Share Posted March 11, 2019 KPT-310, KPT-325, KPT-902 & KPT-904 all cross somewhere around 900Hz (give or take 50Hz) and all use the same circuit board along with KPT-942. All LF cabs are 4ohm and all HF horns are 8ohm. My guess is that values due change some between models but not drastically... maybe? The KPT-942 sits somewhere around 600Hz. As a comparison the KPT-398 is published at 750Hz while the KPT-396 at 1kHz Quote Link to comment Share on other sites More sharing options...
CANT Posted March 11, 2019 Author Share Posted March 11, 2019 I bought a pair... Quote Link to comment Share on other sites More sharing options...
windashine Posted March 11, 2019 Share Posted March 11, 2019 I bought the last one.... … o O (figured it's unused...couldn't beat the price for part's alone... all for science and home improvement) Quote Link to comment Share on other sites More sharing options...
Emile Posted March 11, 2019 Share Posted March 11, 2019 Darn ... late again Anyone wants to sell a pair? (Could use it for K-510's on a JBL bass bin.) Quote Link to comment Share on other sites More sharing options...
Emile Posted March 11, 2019 Share Posted March 11, 2019 Anyone tried any ART CX310 adjustable crossovers? https://www.parts-express.com/art-cx310-2-way-3-way-crossover--245-880?utm_source=google&utm_medium=cpc&utm_campaign=pla&gclid=EAIaIQobChMIh_fgn8_64AIVjYnICh1uggDNEAQYAyABEgI5SPD_BwE Add-on ... have a miniDSP 2x4, but it's not great ... have to turn my preamp to half volume to avoid clipping Looking at Xilica's but don't want to spend $1000 just to "try it." Quote Link to comment Share on other sites More sharing options...
CANT Posted March 12, 2019 Author Share Posted March 12, 2019 Here's a schematic... I left off the 200ohm/polyswitch protection on HF After another look it does appear that the board has more allowance for variation than I originally thought but all configurations would remain 2nd order for both HF & LF. 1 Quote Link to comment Share on other sites More sharing options...
Emile Posted March 12, 2019 Share Posted March 12, 2019 11 minutes ago, CANT said: Here's a schematic... I left off the 200ohm/zener protection on HF Thanks! But now I am confused ... this is a 2nd order 12dB crossover ... when I checked my KPT-904's it states that it has a 24dB xover??? Also, for us "non-electronics" guys ... can you elaborate on the 200 ohm protector ... no clue where it goes Many thanks, Emile Quote Link to comment Share on other sites More sharing options...
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