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back to back BW filters [message #39918 is a reply to message #39917]

Fri, 17 January 2003 06:46

Sam P.
Messages: 307
Registered: May 2009

Grand Master

for 16 ohms drivers at 800Hz. would take 4.5mH coils and 8.8uF caps. At 1600Hz. use 2.25mH/4.39uF values. The values are not set in stone.
.
Hey, a while back I snagged a pair of 4.25mH 18ga. coils at the ratshack on clearance, if you can come up with 4 of those you could just cross a little higher, and use a different cap value to match the coils. In lieu of a fixed pad, you might want to TEMPORARILY use mcm's 16 ohm lpads so you can vary the levels while listening.
.
Once you find the sweet spot for overall tonal balance, measure the ACTUAL relative difference between the HF and LF, then work out the fixed pad values. Sam

remember, altec clones are different animals than pi speakers:)

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[Message index]

		Wayne and crossover guys; a little help? By: BillEpstein on Thu, 16 January 2003 15:21
		Altec 811 By: Wayne Parham on Thu, 16 January 2003 23:30
		This is mainly my fault here, so let me clarify what is needed! By: spkrman57 on Fri, 17 January 2003 05:16
		back to back BW filters By: Sam P. on Fri, 17 January 2003 06:46
		Re: back to back BW filters By: spkrman57 on Fri, 17 January 2003 06:53
		something to try By: Sam P. on Fri, 17 January 2003 11:26
		Sam, I would like to try that By: spkrman57 on Fri, 17 January 2003 12:35
		power handling By: Sam P. on Fri, 17 January 2003 14:43
		Re: power handling By: spkrman57 on Fri, 17 January 2003 16:03
		Re: Wayne and crossover guys; a little help? Relax, guys.But read carefully.LOL By: BillEpstein on Fri, 17 January 2003 17:13
		Schematic symbols and stuff By: Wayne Parham on Sat, 18 January 2003 22:33

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