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Crossover question(s) [message #37883] Mon, 19 August 2002 10:17 Go to next message
LuxmanLover is currently offline  LuxmanLover
Messages: 164
Registered: May 2009
Master
On the 4Pi Pro's....or any of the crossovers I guess, would it be worthwhile to build R1 and R2 using higher than rated resisters,
ie. using 4 25 watt 120 ohm resisters all tied together in parallel to make a 100 watt 30 ohm resister, or what ever combination works out to get a value higher than a 40 watt rating, or is that a waste of $$$$.
Kelly
Re: Crossover question(s)Part 2 [message #37884 is a reply to message #37883] Mon, 19 August 2002 10:22 Go to previous messageGo to next message
LuxmanLover is currently offline  LuxmanLover
Messages: 164
Registered: May 2009
Master
Also (think before you hit submit) for the 2226 equiped 4 pi's a .07 mH inductor is used on L2 correct?
Kelly
L2 should be 0.7mH w/ the 2226H's [message #37885 is a reply to message #37884] Mon, 19 August 2002 10:35 Go to previous messageGo to next message
Sam P. is currently offline  Sam P.
Messages: 307
Registered: May 2009
Grand Master
but I would not go to the expense or trouble of increasing the wattage ratings for R1/R2. Mine are "derated" down to 24 watts for R1, and 36 watts for R2. This allowed me to use a pair of non-inductive Mills resistors for R1, and a trio of them for R2. Wayne's 40 watt specification has an adequate safety margin built in already, going larger will not be needed. Sam
Re: L2 should be 0.7mH w/ the 2226H's [message #37890 is a reply to message #37885] Mon, 19 August 2002 18:01 Go to previous message
bmar is currently offline  bmar
Messages: 346
Registered: May 2009
Grand Master
Yes Like Sam said. Wayne has these babies ready to handle the full 600 watts and probly a safty margin. and that's max on the driver's

I only use 10watt resisters and they dont even get warm for playing music in the house. Take my setup outside and put the feed to it and you'll see a smoke show! but for inside at levels more than loud enough to deafen you derated works for me.

Bill

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