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Get familiar with the reaction system: Introducing the Reaction System

Potential InDIYana 2024 theme project

edited December 2023 in DIY

Tweet: Arylic AMT-7
https://www.arylic.com/products/air-motion-transformer
Ordered on a whim seeing the sale posted here while out with family in a cabin in Indiana the weekend before Thanksgiving. (I meant to order the bigger AMT-9s, oops)

Mid: Peerless 830985
https://www.parts-express.com/Peerless-830985-2-1-2-Full-Range-Woofer-264-1050?quantity=2000
A.. slightly alcohol-driven buy, in order to combine with the AMT-7s for a 2.1 PC speaker build. But a 2.5" with 2mm xmax.. I've since decided they would probably live their best life high-passed well above subwoofer range.

Woofer(s): Peerless SDS-160F25CP01-08, 6.5"(Isobaric)
https://www.parts-express.com/Peerless-SDS-160F25CP01-08-6-1-2-Paper-Cone-Woofer-8-Ohm-264-1592?quantity=500
I've been hanging onto these for a while. I used a pair in a 1.16cf 2-way before I joined the forum and learned how to read distortion graphs. Now that I know what the graphs mean, I understand these are not realy suitable for a 2-way. But they sure as hell love some air volume to go deep! (non isobaric) In 2cf they can dig down to 30hz F3 at over 99db(1m). But in 1cf vented they still get 42hz F3 with a little bump in the response to make things fun. Then isobaric puts that right in bookshelf territory.

Enclosure:
Either I DIY a ~1+cf tower to maximize their F3 potential...
Or I've got some of the PE .56cf bookshelf knock down cabinets to shoehorn it all into.. Guessing the resulting volume would be about .35cf after isobaric and mid chambers. That with a DS215-PR (8") with 35g added results the below response.

Excursion

I think WinISD miscalculates the power in isobaric. Probably half that.

No clue if I'll get to this with the other projects in the queue. But having quite a bit of fun thinking it out!

johnny5jzhifisidejr@mac
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