Reply to thread

Message

<blockquote data-quote="poolman966554" data-source="post: 8374461" data-attributes="member: 665165">so i figured out i want to run a single SA-12 (4ohm wired to 2 ohm) and want a custom slot ported 2cu ft box at 34hz. Ive done all the math to calculate port area/lenght, and box airspace to fit my car.i installed winisd and input the parameters to create the sa-12 sub in the program. upon loading the new sub, it says the sa-12 peaks at 138hz&nbsp; in a 2ft box tuned to 34hz. even when i input my port dimensions, it barely changeshow can this be? i triple checked all data i entered, and even let it auto calculate everything as it was more precise.I wanna say fk it and just build the dam box, but ive read over and over that people love this program. i just wanted to see what the port air speed was going to beedit:<a href="http://i.imgur.com/F4roqYT.jpg" target="_blank">http://i.imgur.com/F4roqYT.jpg</a> - sub parameters winisd is using<a href="http://i.imgur.com/GCzcHUM.jpg" target="_blank">http://i.imgur.com/GCzcHUM.jpg</a> - what winisd is showing</blockquote>

[QUOTE="poolman966554, post: 8374461, member: 665165"] so i figured out i want to run a single SA-12 (4ohm wired to 2 ohm) and want a custom slot ported 2cu ft box at 34hz. Ive done all the math to calculate port area/lenght, and box airspace to fit my car. i installed winisd and input the parameters to create the sa-12 sub in the program. upon loading the new sub, it says the sa-12 peaks at 138hz in a 2ft box tuned to 34hz. even when i input my port dimensions, it barely changes how can this be? i triple checked all data i entered, and even let it auto calculate everything as it was more precise. I wanna say fk it and just build the dam box, but ive read over and over that people love this program. i just wanted to see what the port air speed was going to be edit: [URL="http://i.imgur.com/F4roqYT.jpg"]http://i.imgur.com/F4roqYT.jpg[/URL] - sub parameters winisd is using [URL="http://i.imgur.com/GCzcHUM.jpg"]http://i.imgur.com/GCzcHUM.jpg[/URL] - what winisd is showing [/QUOTE]

Verification