Hi, I found this site via diyaudio.com.
I have some old but good Vifa drivers D25 ferro tweet
6 ohms,D75 3"dome tweet 8ohms, P25 10"poly woofer.
The graphs of these seem very similar to the Dayton
drivers used in the Lyra. Except parts express says the
275-070 is 8ohms and the 285-010 is 6 ohms? Have they
accidentally switched impedances?
As, I am now retired I would like to use my Vifas and
wondering if the Lyra crossover would be suitable?
I plugged the Lyra values into the 'cookbook' (Dickason)but some of the values were quite different?
Unfortunately, I can't afford Calsod, and can't get the manual for Speaker Workshop.
I would like to emulate the design for 625/5000Hz with
3rd(for tweeter), bandpass 2nd order/mid and 2nd order
for the woofer.
Could anyone assist in this please? The values I have arrived at differ from Lyra, and Fm=1768 for the mid -
should I use this?
Very much appreciated, sorry to be so specific!, Grant