DIY 604-8G Markwart Crossover

Do It Yourself
All done. Installed and sounding great. Took a few pics along the way. Now I’ll stop spamming this thread and go have a listen.

Old vs new
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Midway through. Damn, these things are heavy.
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Removed some insulation from the bottom so they had a place to sit. Also replaced the binding posts with Cardas coppers and rewired with Neotech occ stranded.
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Noticed a sticker on the drivers from when the previous owner had them reconed by GPA. There’s a stamp on the cone itself that I didn’t get a shot of. Either way, dated 8/13/2012. 10 years tomorrow.
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I realize this thread is over a year old now, however, I'm wondering why you changed the values of the capacitors and inductors of the markwart simplified 604-8h schematic. What is the benefit? Could you also tell me why you chose this crossover over the 604-8h with mid frequency EQ? I only ask because I have essentially 605's with 8 ohm coils and diaphragms and am looking for a proper crossover for them.
 
I realize this thread is over a year old now, however, I'm wondering why you changed the values of the capacitors and inductors of the markwart simplified 604-8h schematic. What is the benefit? Could you also tell me why you chose this crossover over the 604-8h with mid frequency EQ? I only ask because I have essentially 605's with 8 ohm coils and diaphragms and am looking for a proper crossover for them.
The notes section at the bottom of the schematic shows different values for the 604-8g, which is the version I have. I chose the Markwart since it seemed to have the most support/references available. Still pretty happy with it.
 
I just noticed that! It all makes sense now. Looking at all the different versions of the crossover schematics has made my head spin. Thanks for the reply. It's nice to hear that you're still happy with your decision. I may also embark on building the simplified 8G as well if I can't find someone who can figure out how to change the values of the 8H version with the mid frequency EQ and phase correction.
 
I realize this thread is over a year old now, however, I'm wondering why you changed the values of the capacitors and inductors of the markwart simplified 604-8h schematic. What is the benefit? Could you also tell me why you chose this crossover over the 604-8h with mid frequency EQ? I only ask because I have essentially 605's with 8 ohm coils and diaphragms and am looking for a proper crossover for them.
There is also a Markwart schematic for the 605!
 
Well i don't want to hi-jack this thread but after taking with Jeff Markwart he recommended a 2nd order Butterworth which I believe is like his 605 schematics. The reason his standard 605 one won't work for me is because mine uses 8 ohm loads where the standard 605 uses a 16 ohm load. This would end up changing the crossover points. I appreciate the reply though. The values will have to change to accommodate the 8 ohm load. I'm not sure what they will need to change to. Hopefully Jeff will get back to me and give me a clue because i don't know how to adjust them appropriately.
 
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