I started a new cab build a few days ago . I'm using an Eminence Legend CB158 15" in an Eminence designed cabinet .
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It's the medium size bass guitar cabinet plan .
The dimentions are :23" high x 20.5" wide x 15"deep with the baffle recessed 1.5". It has two 4"ports 5.5" long .
I wanted a full range speaker so I borrowed a design from the Audiokarma forums . It's called the Econowave because it's an inexpensive way to get very good waveguide performance . They use it mostly to modify hi-end home listening speakers and have had great results so I thought it might work for bass guitar too . They originally used a JBL waveguide but found later that a Pyle waveguide worked very well too . That gets coupled to a Selenium D220TI driver but the thing that makes it work is the crossover they designed for it . We'll see how that works out when I get it all together .
For the cab I'm using 1/2" Birch . I don't have a truck so I had to use what was cut in 2 by 4ft size to fit my Honda Accord . I wanted to save some weight because the CB158 has an 80 ounce magnet and the Selenium driver is 24 ounces plus the weight of the crossover . I'm hoping it turns out lighter than 60 pounds . Anyway here's some pics of the progress .
First coat of Duratex:
Adding the lining
Adding the handles:
Done with the stuffing
I wanted to front port the cabinet but with the size of the 15" and the horn it just wasn't going to work . The port placement doesn't matter soundwise anyway so I put them to the left and right of the compession driver and I think it worked out pretty good . There should be plenty of room for air movement up there . I've heard that you don't want the ports right behind the drivers so that's why they are up top . I also used flared ports , mainly because they mounted easy but they should cut down on chuffing . You can see them on the table with the glue drying after attaching the tubes to the flare . Next up installing the corners and ports and then building the crossover .
[Invalid or Expired Link Removed]
It's the medium size bass guitar cabinet plan .
The dimentions are :23" high x 20.5" wide x 15"deep with the baffle recessed 1.5". It has two 4"ports 5.5" long .
I wanted a full range speaker so I borrowed a design from the Audiokarma forums . It's called the Econowave because it's an inexpensive way to get very good waveguide performance . They use it mostly to modify hi-end home listening speakers and have had great results so I thought it might work for bass guitar too . They originally used a JBL waveguide but found later that a Pyle waveguide worked very well too . That gets coupled to a Selenium D220TI driver but the thing that makes it work is the crossover they designed for it . We'll see how that works out when I get it all together .
For the cab I'm using 1/2" Birch . I don't have a truck so I had to use what was cut in 2 by 4ft size to fit my Honda Accord . I wanted to save some weight because the CB158 has an 80 ounce magnet and the Selenium driver is 24 ounces plus the weight of the crossover . I'm hoping it turns out lighter than 60 pounds . Anyway here's some pics of the progress .
First coat of Duratex:
Adding the lining
Adding the handles:
Done with the stuffing
I wanted to front port the cabinet but with the size of the 15" and the horn it just wasn't going to work . The port placement doesn't matter soundwise anyway so I put them to the left and right of the compession driver and I think it worked out pretty good . There should be plenty of room for air movement up there . I've heard that you don't want the ports right behind the drivers so that's why they are up top . I also used flared ports , mainly because they mounted easy but they should cut down on chuffing . You can see them on the table with the glue drying after attaching the tubes to the flare . Next up installing the corners and ports and then building the crossover .
