marmelbirne123

Yes, i already thought about it. Bummer is: One of my Heresy has a k52H driver. Never heard a difference but what would you suggest ? replace all 4 diaphragms at the same time but also on different types of drivers?

No, i stuffed em with some cotton wool from both sides. ✌️

How is that meant? The midrange driver (K55V) is mounted on the Altec811 via adapter plate. You mean i remove the horn of the tweeter and just insert the tweeter driver next to midrange driver? 👀 I once saw that someone placed his tweeter and horn inside his Altec 811 horn, not sure though how he got it fixed in there.

....ok that seems very logical to me. Does it make any difference WHERE in the crossover i sold in the L-Pad ?

fantanstic answer, thanks for the input so basically something like this would do the job? https://www.parts-express.com/speaker-l-pad-attenuator-50w-mono-3-8-shaft-16-ohm--260-254 . And then i just replace it with a measured capacitor? Not sure what is meant by " shunt R´s with fixes resistors" Thanks again!

Good Day 😃 This is my first posting here and i hope you can help me with my questions. i recently bought a set of 1980 Heresy 1 - They sounded good to me to the point i got myself a Stromberg Carlson ASR 433 - So i asked a friend and we did this impedance correction mod. Then it sounded super nice but i was still hungry for more. After that, a friend lend me his altec 811 Horns, so i got me some horn-mount adapters, pulled out my K55V´s and mounted them on top of the Heresy! Wow! What a big suprise it was...But i came to the point where i thought the midrange was too loud...of course i thought, the Horn is much bigger than the original one. So i googled and came across this mod where it says: You can lower the midrange by changing the taps on the autotransformer and adding an resistor across the network? BUT: I only want to lower the midrange. This mod includes changing the tweeter to another tab...but is it possible to ONLY lower the midrange - 3db and leave the tweeter like it is? Am i one the correct way or is that all bullshit? Also i planned to maybe mount the Tweeter above the Altec. Is that a better idea than leaving it inside the cabinet? Any more tipps how to adjust the crossover are very appreciated! Thanks and all the best from Berlin, Germany 😎