| Author | Message | ||
| gtrguy
Junior Username: gtrguy Post Number: 19 Registered: 9-2004 |
Hi folks, I want to build a speaker cab around a 15 inch EV speaker I own. I pulled it from a Lab Series L9 amp (vintage BB King stuff) after plugging it into the SWR to make sure it sounded good (it did) I will be using it for practice, so it needs to fit in the trunk of a Mustang (cab should not be over 14 inchs wide. I want a small size and will be using it with a SWR 350 head just for practice. I don't know if I need a closed cab with a port, or what kind of port. Can anyone help me with some advice? Thanks, Dave | ||
| phys49
Junior Username: phys49 Post Number: 21 Registered: 4-2005 |
If you can find the Thiele-Small parameters for the speaker, you can build a box that will give the best sound for the smallest volume. Without them it is pretty much a guess but a box 12 inches deep by 18 inches wide and 24 inches high out of 3/4 plywood or particleboard will probably give a decent sound. As for the port, use a slot port similar to SWR construction all the way across the bottom of the front baffle. You may have to experiment with the height of the port. Start with 1/2 inch then go to 3/4 or 1.0 inch if there is too much whistling. Do not expect maximum performance using these dimensions. They are just a guess based on my experience with EV 15 inch speakers. best of luck, Perry | ||
| bassman10096
Senior Member Username: bassman10096 Post Number: 813 Registered: 7-2003 |
There's a very good free download cab design calculator at http://www.linearteam.dk/default.aspx?pageid=teaminfo. I've used the calculator successfully for several years and 4 or 5 cabs. It's very easy to use, but best of all, the calc has T-S parameters for a couple hundred drivers that are listed by make and model. You don't need to enter or even know the T-S data. And the calc can adjust for any size or dimensions you tell it. Saves a lot of trial and accident. |
