Previous measurements was with a bug in my crossover. But even with right crossover 400Hz-1kHz is way down. However with the right crossover it still sounds amazing despite <1k being way down on the mid driver / horn. This is a measurement of mid only. Around 1m from horn.
Hello, haven't read it all. But I wonder if you could indeed boost a little the 15PR400 with a U Frame, where the side and top recess deepness is not more of D/2 of the cone to avoid resonance.
What value capacitor are you using on the input side of the autoformer?
Are you still using the resistor across taps 0 - 5?
4.7uF. And using - 12db tap currently. So that should give a reflected impedance of 125 Ohm. And a crossover of around 280Hz. (The tweeter is not connected with the autoformer anymore. Using lpads.) Will update schematic soon.
Forgot about the resistor. It's there. Obviously changing my crossover a lot! Thanks. Will remove and test again. I copied that from a different schematic but that uses big caps.. Duh.. I'm such a dumb *** sometimes.
Forgot about the resistor. It's there. Obviously changing my crossover a lot! Thanks. Will remove and test again. I copied that from a different schematic but that uses big caps.. Duh.. I'm such a dumb *** sometimes.
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You're welcome. What ohm mid driver are you using? Also you should plot the tweeter so we can see how that tracks.