I've KEF drive units from some old Concertos. I'd like to use them for small bookshelf speakers similar to the LS3/5A but I don't want to spend a lot of money on them so I'm looking for a simple crossover as opposed to the very complex, expensive crossover used in the originals, perhaps even use an active crossover, can anyone help? Thanks.
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KEF Concerto Crossovers - YouTube
I guess you are going to make a 2-way instead, it's obvious. Best.
I guess you are going to make a 2-way instead, it's obvious. Best.
It's possible. Make sure to reference your drivers models numbers and impedance (parameters available).
Ah yes, good point, they are B110 midrange unit (SP1003), T27 tweeter (SP1032) https://us.kef.com/pub/media/pdf/Datasheet_B110A_SP1003.pdf
http://nedlab.com/wp/wp-content/uploads/2014/06/KEF-T27-SP1032.pdf
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There are lots of examples of XOs with B110 & T27. The old KEF ones (ie DN12?) are not all that good.
Simple might not be doable, the tweeter really needs a fairly steep LP.
Interestingly i did a triangular shaped box for these drivers (for clients building Friedd H, Freid M kits, the shape later adapoted by the factory), and just found a picture day before yesterday of that plan. I’ll dig it out and post it.
dave
Simple might not be doable, the tweeter really needs a fairly steep LP.
Interestingly i did a triangular shaped box for these drivers (for clients building Friedd H, Freid M kits, the shape later adapoted by the factory), and just found a picture day before yesterday of that plan. I’ll dig it out and post it.
dave
You might check out my simple XO for the “Rockville” speaker here (full plans):
RST28F and DC130A Foamcore Homage to LS3/5A
Very low cost drivers and XO but approximates the step response of an LS3/5A quite closely.
Here is Sterling LS3/5A Step Response:
vs. the Step Response in the Rockville:
It sounds very nice - balanced, and musical.
RST28F and DC130A Foamcore Homage to LS3/5A
Very low cost drivers and XO but approximates the step response of an LS3/5A quite closely.
Here is Sterling LS3/5A Step Response:
vs. the Step Response in the Rockville:
It sounds very nice - balanced, and musical.
Interestingly i did a triangular shaped box for these drivers (for clients building Fried H, Freid M kits
Had to redraw it.
dave
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