Hello, this is my first post in this forum. So if I posted my question in inappropriate section, I apologize.
I have a pair of quite old 8 inch (4 ohm) car woofers (Megavos MGX 883) for which I no manufacturer's specification. Since I have zero experience in measuring t/s parameter, I followed an you tube video. I used a 67.75 ohm resistor as sense resistor, a 9.75 ohm resistor for calibration and PC sound card. for weighted measurement I used 73 gm (close approx.) and 277 gm (close approx.) in two passes. Now, the problem is that after calculating t/s value, I'm having hard time believing the Qms measurement. Therefore, I probably messed up somewhere along the way, but lack sufficient knowledge to troubleshoot the graph. I would really appreciate it If someone can shade some insight.
I have a pair of quite old 8 inch (4 ohm) car woofers (Megavos MGX 883) for which I no manufacturer's specification. Since I have zero experience in measuring t/s parameter, I followed an you tube video. I used a 67.75 ohm resistor as sense resistor, a 9.75 ohm resistor for calibration and PC sound card. for weighted measurement I used 73 gm (close approx.) and 277 gm (close approx.) in two passes. Now, the problem is that after calculating t/s value, I'm having hard time believing the Qms measurement. Therefore, I probably messed up somewhere along the way, but lack sufficient knowledge to troubleshoot the graph. I would really appreciate it If someone can shade some insight.