Edgar Posted January 23 Share Posted January 23 22 minutes ago, Travis In Austin said: In that circuit, forgetting the screw for a second, if you put in a 300 rated air core inductor what would you expect to see in the crossover frequency? A rise, a drop. Any way to predict how much change to expect? I'm not familiar with the particular circuit in question, so I can only answer in generic terms. From https://www.calsci.com/audio/X-Overs1a.html: For a first-order crossover, L = R/(2PI*f). Rearranging that, f = R/(2PI*L). If L is multiplied by 1.1, an increase of 10%, then f will be divided by 1.1, a decrease of 9.09%. On to the next page, https://www.calsci.com/audio/X-Overs1b.html: For a second-order crossover, L = R/(2PI*f*Q). Rearranging that, f = R/(2PI*L*Q). Again, if L is increased by 10%, then f will be decreased by 9.09%. It gets more complicated with higher-order crossovers. I don't know what the order is for the crossover in question. Quote What are the typical tolerances and these kind of conductors? 1% 5% 10% 20? A quick glance at Parts-Express shows 5% and 1%, priced accordingly. Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.