Saint-Saëns planar- AKA SMJ-40- time for a project now?

[JonMarsh]

This project concept has an unusual history and evolution. It started out in early mid 2021 based on the idea of a short narrow column bass system, originally targeting the recently introduced Dayton E180HD-44.






This dual magnet long excursion driver seemed...

[Mandroid]

Looking at the other subwoofer threads going right now, I am under the impression this is one of the few places to go for sensible input on subwoofer designs. I have been slowly selling off my larger speakers and subwoofers in favor of more modest equipment to put in the living room. Dedicated theater...

[DaveFred]

Hello Everyone,

I am looking to build a speaker with an 8" woofer and a 4" tweeter in 1.5 cubic feet or less. These are the constraints, please don't make suggestions on what to try outside these guidelines.

Because I do not know which are the best drivers to choose,...

[Markcsa]

Hi all! Does anyone perhaps have metric drawings or a 3D model they could share? It would be greatly appreciated and save me a lot of cash!

[JonMarsh]

For various reasons it makes more sense to me to have a succinct new thread covering the investigations and updates this year for the Isiris. Only a few key items that will be addressed right away, but there might be more soon if the negotiations for early samples of a new midrange are completed. ...

[JonMarsh]

Sometimes I wonder if developing another center channel design is a bit like doing another 6-1/2" two way- as I think Dennis Murphy said once, another 6-1/2' two way is not going to be a ground breaking concept...

But it can be made interesting... (but that's a different day and a...

[Jim Holtz]

Just a heads up that between Curt and Efalegalo they have come up with a modification to the original crossover that works better with the new production AST2560's currently shipping. Meniscus has also committed to testing every AST2560 driver ordered to assure the correct crossover parts are included...

[Efalegalo]

Hi All,

I just recently completed my build of The Bordeaux and needed help with crossover issue I'm having.

See attached picture of the frequency response. I have a massive dip in the 1.25Khz - 4.0Khz range.

I've checked the crossover a 100x.
...

[crackyflipside]

Looking for feedback on this crossover I've been kicking around for my cousin who really wants a planar tweeter.

It's an MTM with 6" Dayton RS150 mids and a planar tweeter. I want to use the Dayton PT2C-8 but it has an aggressive roll-off after 10kHz, which makes me want to redesign...

[123Toid]

For years, I wanted to design my own speakers, but didn't understand the intricacies that went into it. For all I knew, you bought a 2500 hz crossover from parts express, picked a woofer and tweeter that looked cool and went at it. It wasn't until i really got into DIY speaker building that I understood...

[DIYrocks]

I've read it improves phase shift, delay, voltage ringing in capacitors, inductor compression, complimentary induction between inductors, compression from heat generation in resistors and capacitors, variances in component values and decoupling of the amp from the driver. Also each amp only amplifies...

[TheWaveCarver]

I'm designing a pair of bookshelf loudspeakers with a friend. My friend has decent experience in woodworking but little in crossover design. Prior to working on this project, has has completed a pair of full range and 3-way speakers (With a pre-manufactured crossover for the 3-way - It did not sound...

[TheWaveCarver]

What are some good sources online to learn about passive crossover design? Right when I think I'm beginning to figure it all out, I learn something new (Baffle step diffraction, driver impedance matching). I'm just beginning to understand the purpose of L-Pads and Zobels but have no idea how to calculate...

[JonMarsh]

The Isiris never got it's own build thread, being the culmination of the "Three Way Evil Design Study" - it didn't seem very urgent, as only two pair were expected to be built world wide, due to availability issues with the NS12-513-4A woofer. Of course, that part of the design can be redone...

[sdl2112]

This is my first build of my own design. I have been mentally designing it for years. There were always more questions than answers but now I'm ready to start the build.


Name:
The SSA-WG is a 3-way Scan-Speak Accuton WaveGuide project.

Drivers:
Woofers:...