Epic Hifi crossover help please

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      • Big_Al
        January 30, 2025 at 1:58 am #56436

        I’m building the Epic HiFi build and I need help finding what is wrong with my crossovers. The tweeter circuits sound very quiet.

        I have noticed that if I remove the other two negative endpoints on the circuit that the volume goes up substantially, so it’s probably one of those two components maybe? But it is on both circuits I made, for which I’m reasonably sure I built them correctly.

        I have a multimeter, but I’m not too handy with it.

        Any advice would be appreciated. The tweeter isn’t supposed to be this quiet, is it?

        • TVOR-Ceasar
          January 30, 2025 at 3:51 pm #56445

          Would it be possible to post a few good quality photos of your cross-overs, specifically how the connections are made so we can trace them to find the issue? I hesitate to ask for the schematic as that is part of the purchase price of the plans, and it shouldn’t get out there unless Nick wants it to be.

            • Big_Al
              January 30, 2025 at 6:10 pm #56447

              Hey, kind of a catch-22 isn’t it. If I show the cross-over, you immediately know what the cross-over is. I could show you some of my not-so-amazing soldering, but I don’t really think that’s the problem considering the issue is present on both and the main subs sound fine. (Besides, I kinda want to redo most of the connections from components to my copper wires)

              I have a feeling Nick doesn’t drop by too often here, so I’m attaching a really vague diagram. I doubt it will help much but… I appreciate the help.

              • TVOR-Ceasar
                January 31, 2025 at 6:42 am #56452

                I’m going to make an assumption about that circle – it’s either the woofer or a coil. If if its a woofer, you can label it W, coils should be labeled L. My best guess is it’s a coil. That would make the C-L-C part a notch filter and the 2 resistors form a L-Pad to reduce the tweeter volume enough to match the woofer’s output.

                Lifting the grounds on the board will force the signal to go through the tweeter to exit. There must be a wiring issue that presents almost exclusively as a short. I’d look at the C-L-C connections, especially the L connections. If you still can’t find it you can message me with the pics and schematic.

                • Big_Al
                  January 31, 2025 at 9:22 pm #56461

                  Yes, that is a coil.

                  Thanks, I will send you a note.

                  • TVOR-Ceasar
                    February 1, 2025 at 4:29 pm #56483

                    Got your note. Will look at it as soon as I can get a chance.

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