mutt clone in the works

[jaudio]

This is my verison of the wilson puppies. I thing the standing waves are mostly dealed with. The baffle is kinda giving me hell. The bottom corner are curved,so I will have a sculptor finish it. Next I will cut the hole for the driver(seas1189 or the special buy MB Quart and a RS180)

 

[jaudio]

The upper and the lower enclosures will be separate. The tweeter and the midbass enclosure will be on stands.

 

[jackinnj]

Watt-(moderator deleted term which refers to the female of the genus canus)

where in the Peoples Republic of New Jersey, aka Corzinelandia?

 

[jaudio]

Newark

 

[JoshK]

Looks like the illegitimate love child of Wilson & Avalon.

 

[jaudio]

LOL

 

[jaudio]

I cut the hole for the 8" woofers. Now I cant use a 4" pvc port. I want to try a slotted port. I know the math for square slotted port. What,I want to do is around off both ends. Is these a different formula.

 

[jaudio]

I want to put the port at the bottom of enclosures. If there is a different fomula,can someone please post it.

 

[454Casull]

Use a subwoofer modeling program/spreadsheet. I use WinISD Pro, others like Unibox, etc.

 

[jaudio]

Thank 454Casull

I used the win program. I cant use a slotted port,my baffle in only 3" thick. The smallest useable port,needs 7.5" thickest.

I guess Im going back to the round ports,maybe 2 2"dia tubes

 

[jaudio]

I Have a choice of two finishes for the high-mid baffle.

1. Use faux leather

Or

2. painting the baffle. More of the baffle is edge

a. Do I seal with bondo (also use the fill screw holes?)
b. Water and glue
c. Use spray sealer
d. Use just spray paint, I have about 30 can of enamels
Different colors last 6 coats will be black

 

[jaudio]

bracing cutout

I know all four inside panels should be connected when using bracing. My question is there advantages to window pane or oval shape cutouts?

 

[jaudio]

Since I got no reply for my last two posts, I assume one method has no advantage over another,

I going with the faux leather and the oval bracing. I came cross 10/$1 ceiling fan extend poles. I in the process of finishing stands for the Hi/Med enclosures.

Here is a picture

 

[imjatse]

The boxes look great! I don't know if the cut out shape makes a difference in the bracing, but fwiw I think oval or round cut outs would be slightly stronger.

 

[jaudio]

homemade damping sheet

Added my homemade damping sheet today. It is TP4 (roofing material), butyl rubber, siliconized acrylic and eggcrate foam. I give the enclosure the “rap on the side test” with and without the damping material. Let’s just say the difference is very large. There is a much deader sound.

The TP4 is $54 a roll at Homedepot. You can also get scrapes from construction sites with office or warehouse construction…

If you can get pieces of TP4 for free, then the damping is cheap about 10ft for around $10 maybe less.

The butyl rubber and the siliconized acrylic can be found for $1 ea. The eggcrate can be found for $1 to $4

 

[jaudio]

A little progress

Adding the faux leather

 

[jaudio]

subwoofer

 

[jaudio]

Battery low in camera, it changed the color from brown to blue but you can see the texture

 

[jaudio]

Just a few more steps. I can see the light at the end of the tunnel

The back or the baffle is not fixed yet. Picture know too good (the baffle is smooth and straight) but you get the idea

 

[jaudio]

second picture