Thank you
We have tested the dispersion with a mic and scope with a signal generator and we think we have about 70 degrees but we are talking with Salford university about some independent testing as one of our engineers is a graduate of theres.
Studios and Labs for Acoustic Engineering, Audio and Video Engineering | University of Salford | Manchester
Hello electros,
Can you clarify exactly what you mean by 70 degrees dispersion? Is that +/-35 degrees? or +/-70 degrees.
Also, is that the angle at which some high frequency(10kHz?) is down from reference by a certain amount? (-6dB perhaps?)
When you have the independent testing done, hopefully they will include horizontal off-axis measurements both to the left and right as the behavior will be different with segmentation layout you are using.
A few other questions that came to mind when viewing the pics you posted:
1) How thick is the FR2 board material you are using?
2) You mention coating the stators with anti-track varnish....both sides? or just the outer copper side.
3) Were you experiencing arcing problems without the coating?
4) Do you use any sort of damping mesh similar to the Quad ESL63 to acoustically damp the membrane resonances?
5) What is the step-up ratio of your transformer?
6) If I am seeing things correctly, it appears you are using single surface mount resistors between etched segments. Can you share some informtion on these resistors? Special HV type? what wattage?
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.