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K55 replacement in a active 3-way LaScala.


Droogne

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What would be a good substitute in an active 3-way LaScala with a PH2380 horn instead of a K400. Having troubles finding K55 drivers in Europe (US located K55 are extremely expensive to import..). Bob crites recommended a Faital HF-140 on a Faital LTH142 horn for a 2-way LaScala. Would I be able to use the HF-140 driver on the PH2380 horn for the 3-way too? It's an expensive driver, but still cheaper than importing the K55. 

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Look for an AtlasIED (Atlas Sound) PD5-VH.  Atlas has a distributor in Germany, if not other EU countries.  A few minutes looking at my favorite drivers showed how unique the Atlas-made K-55-V really is.  Few compression drivers can respond well below 1000 Hz, never mind below 400.  The K-55-V/PD5-VH can respond down to 110 Hz.  The early K-55-V/PD5-VH struggles to get to 6k, though.  You may want to build a very steep tweeter high-pass (24 dB/oct or higher) and let the tweeter roll in at 5k, +/- 500 Hz. 

 

Atlas PD5-VH-VT1.PDF

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