Large Advent Econowave Crossover Help

[Ross6860]

Trying to find the proper or most recent crossover using the Large Advent woofer in a Large Advent Utility cab with this compression driver.

• Selenium D220Ti 1" Titanium Horn Driver 8 Ohm 1-3/8"-18

I've searched the main econowave thread and found a bunch of dead links and got a bunch of "errors", so please don't just tell me to search the thread. I know that...

I have this schematic, but I guess there's a question regarding it? I'm using a different waveguide.

• Dayton Audio H6512 6-1/2" x 12" Waveguide 1-3/8"- 18 TPI

Thanks in advance.

 

[donprice]

Try this one.

Parts list courtesy of wiredbecker (ewave post #16831)

<95db/w Econowave Standard Parts List

C1: Dayton Audio DMPC-4.7 4.7uF 250V Polypropylene Capacitor
Part # 027-422

C2: Dayton Audio DMPC-12 12uF 250V Polypropylene Capacitor
Part # 027-430

C3: Dayton Audio DMPC-0.47 0.47uF 250V Polypropylene Capacitor
Part # 027-406

L1: Dayton Audio 0.60mH 20 AWG Air Core Inductor Crossover Coil
Part # 257-040

or the slightly more expensive

Jantzen Audio 0.60mH 20 AWG Air Core Inductor
Part # 255-040

L2: ERSE 1.5mH 18 AWG I Core Inductor
Part # 266-552 (More expensive, mounts to PCB using mounting hardware)

or

Dayton Audio 1.5mH 18 AWG I Core Inductor Crossover Coil
Part # 257-552 (Less expensive, mounts using zip ties)

R1: Dayton Audio DNR-30 30 Ohm 10W Precision Audio Grade Resistor
Part # 004-30

R2: Dayton Audio DNR-16 16 Ohm 10W Precision Audio Grade Resistor
Part # 004-16

L-Pad: L-Pad 50W Mono 1" Shaft 8 Ohm
Part # 260-255

Binding posts: Dayton Audio BPA-38SN HD Binding Post Pair Satin Nickel
Part # 091-1247

Waveguide: Dayton Audio H6512 6-1/2" x 12" Waveguide 1-3/8"- 18 TPI
Part # 270-318

Compression driver: Selenium D220Ti 1" Titanium Horn Driver 8 Ohm 1-3/8"-18
Part # 264-270

 

[1rebmem]

I believe Don has set you correct.
But contact wiredbecker if you have further questions since he worked and studied under Zilch, in the flesh. He can also supply you with crossover ckt boards.

 

[Ross6860]

I believe Don has set you correct.
But contact wiredbecker if you have further questions since he worked and studied under Zilch, in the flesh. He can also supply you with crossover ckt boards.

Thanks for the info. I actually picked up a pair of circuit boards a couple years ago. I just never got around to the project.

Sold off and gave away a bunch of stuff, so time to play around some more. Plus I'm retired now...

Try this one.

Parts list courtesy of wiredbecker (ewave post #16831)

<95db/w Econowave Standard Parts List

C1: Dayton Audio DMPC-4.7 4.7uF 250V Polypropylene Capacitor
Part # 027-422

C2: Dayton Audio DMPC-12 12uF 250V Polypropylene Capacitor
Part # 027-430

C3: Dayton Audio DMPC-0.47 0.47uF 250V Polypropylene Capacitor
Part # 027-406

L1: Dayton Audio 0.60mH 20 AWG Air Core Inductor Crossover Coil
Part # 257-040

or the slightly more expensive

Jantzen Audio 0.60mH 20 AWG Air Core Inductor
Part # 255-040

L2: ERSE 1.5mH 18 AWG I Core Inductor
Part # 266-552 (More expensive, mounts to PCB using mounting hardware)

or

Dayton Audio 1.5mH 18 AWG I Core Inductor Crossover Coil
Part # 257-552 (Less expensive, mounts using zip ties)

R1: Dayton Audio DNR-30 30 Ohm 10W Precision Audio Grade Resistor
Part # 004-30

R2: Dayton Audio DNR-16 16 Ohm 10W Precision Audio Grade Resistor
Part # 004-16

L-Pad: L-Pad 50W Mono 1" Shaft 8 Ohm
Part # 260-255

Binding posts: Dayton Audio BPA-38SN HD Binding Post Pair Satin Nickel
Part # 091-1247

Waveguide: Dayton Audio H6512 6-1/2" x 12" Waveguide 1-3/8"- 18 TPI
Part # 270-318

Compression driver: Selenium D220Ti 1" Titanium Horn Driver 8 Ohm 1-3/8"-18
Part # 264-270

The schematic is not showing. I'll check the original post.

 

[EarlK]

 

[Ross6860]

Thanks, much.

 

[percivilla]

View attachment 2392059

This was the one I used. They sound really good. Really, really good. Really extremely stupifyingly good, you get the idea. And yes, the polarity for the HF driver is supposed to be reversed. That one confused me a bit.

I love the L pad for evening out darker or brighter sounding amps.

 

[Pete B]

Also, the Dayton H6512 is the correct waveguide for the original LA Econowave.
As far as I know, the original was built with a JBL waveguide and the H6512 is a
faithful copy. I have the Pyle copy that even has a metal insert for the threads.
Edit: We've learned since I posted this that the Dayton H6512 tries to be a copy/clone but is
off a bit in the top octave according to MTG's measurements. You can get the real JBL horn for
not a lot more money from various sources.

 

[percivilla]

Also, the Dayton H6512 is the correct waveguide for the original LA Econowave.
As far as I know, the original was built with a JBL waveguide and the H6512 is a
faithful copy. I have the Pyle copy that even has a metal insert for the threads.

I used the Dayton versions from Parts Express, they had the threaded brass inserts. The quality seemed pretty good!