Show Us Your DIY Speaker Crossovers

[Sansui77]

During this pandemic I've had more time to get things done around the house including sorting out some speaker crossovers issues. These diy speakers were built by my old-school teacher and somehow they ended up in my hands. Originally they were setup with active crossovers but were changed back to a passive setup. Unfortunately, the crossovers were slapped together but still sounded great. Me being me I had to sort it out. I also decided to upgrade with better spec components still using the hand wound inductors. Performed a freq sweep and even though they look pretty good they needed tweeking. With a few adjustments with my super HD hearing lol, they still have that nice punchy bottom end detailed midrange. The big improvement is how detailed and cleaner the top end is now and not rolled off so quickly. The super tweeter crossover is not added in this circuit but will be built and installed seperately as I want to have a db attenuation stepper allowing you to set and control how the SB Acoustics supertweeter is outputted. Once all the testing is done, a full rewire internally, redo the acoustic material then redo - paint the cabinets.


For DIY speakers, they're impressive.

 

[turboyam]

Here's a couple. I'm a fan of air cores, as you can tell

 

[Subtraction]

those look VERY NICE

 

[f0427ea]

D.o I.t Y.ourself

 

[Steven Tate]

I built these complete redesign crossovers for some JBL L-100's based on extensive research by a savvy speaker guy. L-100's have very simple crossovers, and frequencies just aren't well distributed. These crossovers are a massive improvement. Installing these and the port plugs recommended by that author raised my speakers to a whole other level of smoothness and clarity. The bass is still very strong, but lacks the floppy muddiness it had before. The article is a deep read, but very informative if you happen to have L-100's you are willing to modify.
https://forums.audioholics.com/forums/threads/the-vintage-jbl-west-coast-sound-becomes-the….25014/

 

[WntrMute2]

Nowhere near as nice as the above examples but:

 

[mhardy6647]

Nowhere near as nice as the above examples but:
View attachment 2005108

Here, mine'll make you feel much better about yours!

DSC_4468 (2) by Mark Hardy, on Flickr

You're welcome.

I do want to publicly acknowledge, however, my inspiration for the decidedly inelegant XO above -- which were (are) @setup1's far more elegant (and attractive) outboard XOs, such as:

http://jelabs.blogspot.com/2018/01/altec-2-way-xo-redux.html