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4Pi... B&C DE250-8 or B&C DE250TN? [message #78585] Sun, 08 December 2013 20:43 Go to next message
HPower is currently offline  HPower
Messages: 16
Registered: October 2013
Location: Newmarket, ON Canada
Chancellor
I was at Parts Express getting ready to order parts for my 4Pi build and I noticed that they now offer the B&C DE250TN 1" Titanium Compression Driver 8 Ohm.

Wayne, which is the best driver to go with for the 4Pi?
I am guessing you have the 4Pi voiced with the original B&C DE250-8, what would the TN version bring to the table?

Thx,
Tom


The 3 most feared words in racing... "Powered by Honda"
Re: 4Pi... B&C DE250-8 or B&C DE250TN? [message #78586 is a reply to message #78585] Mon, 09 December 2013 02:16 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18428
Registered: January 2001
Illuminati (33rd Degree)

All my speakers are designed to use the DE250-8. The titanium version may take more abuse, but it will have worse response due to breakup. The polyimide diaphragm provides better internal damping.

Re: 4Pi... B&C DE250-8 or B&C DE250TN? [message #78587 is a reply to message #78586] Mon, 09 December 2013 06:08 Go to previous messageGo to next message
HPower is currently offline  HPower
Messages: 16
Registered: October 2013
Location: Newmarket, ON Canada
Chancellor
Thanks Wayne!

That is what I thought would be the case.


The 3 most feared words in racing... "Powered by Honda"
Re: 4Pi... B&C DE250-8 or B&C DE250TN? [message #96234 is a reply to message #78587] Sat, 17 December 2022 15:54 Go to previous messageGo to next message
repeatafterme is currently offline  repeatafterme
Messages: 5
Registered: February 2022
Esquire
I have the DE250TN with poly diaphragm. I believe that makes it a standard DE250-8. But I'd like to experiment with making my 4 Pi's sound "brighter". Could I put the titanium diaphragms back in and then adjust the crossover? I'm hoping there's a way to try it out without major surgery. Remove or jumper a resistor?

Maybe a better question to start with would be: would the titanium diaphragm make the horn sound "brighter"?

Any other ideas?

Thanks,
Re: 4Pi... B&C DE250-8 or B&C DE250TN? [message #96235 is a reply to message #96234] Sat, 17 December 2022 16:10 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18428
Registered: January 2001
Illuminati (33rd Degree)

Try installing a capacitor in position C1 and see how you like it. In the past, we used a 0.47uF value in that position to augment the top-octave.
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