Help me finish my polystyrene cab build

[Roxbororob]

I think you are introducing too many new innovations (variables) . If the unit does not perform as expected it will be harder to isolate the root cause. I believe your floating baffle will leak. Why not mount it rigidly (with more fasteners and glue) and front load the driver conventionally?

 

[Fat Freddy]

I'm just hoping that the thing never catches fire....

You could wipe out a small village with the fumes that would come off of it....

 

[neal sanger]

It will be screwed into the mounting blocks built into the front face of the cab which were glued to the internal plywood bffle support. There is a photo of it before I mounted it to the front foam panel further up the thread. The open cell layer would be compressed to act like a gasket. I want the front panel to be easily removable.

 

[alaskaleftybass]

Nice work.

 

[CatchaCuda]

You're going to have a demo video when this is finished right?
Did I miss it somewhere? What size is that driver?

 

[neal sanger]

Yeah. In a few weeks. I believe I mentioned it already, but it's a beta 12a.

 

[neal sanger]

I actually cobbled a removable gasket/soft mount. I took one of those interlocking foam floor tiles from the hardware store and cut out the front baffle panel from it and cut the diameter of the speaker out of the middle of it. Seems to work fine. Screwed it into the inset wood blocks.

 

[neal sanger]

What should I do for audio testing? Only fiddled a bit at bedroom volume cuz it's the middle of the night here.

 

[Jokei]

What should I do for audio testing?

Annoy your neighbours - I'm very interested to hear this.

 

[Fat Freddy]

Wot eee sez.........^^^^^

 

[Coolhandjjl]

I think we have a new contender to put up against the Chöad Hammer!

 

[Downunderwonder]

I think we have a new contender to put up against the Chöad Hammer!

Ugly yes, but you could probably get away with throwing the Chöad Hammer out of a moving vehicle to even it up.

 

[Downunderwonder]

Annoy your neighbours - I'm very interested to hear this.

His closest neighbours feed and clothe him.

 

[neal sanger]

It doesn't like the low B, but the tone is decent. Gonna wait til I get my pbass back from my buddy to test it for y'all. My eminence beta is farting like it's dying. Idk y. There isn't noise from the cab vibrating tho. Mixed bag.

 

[Downunderwonder]

If it's just the low B that farts it you can fix that with a HPF. High pass filter.

 

[neal sanger]

What cut off frequency?

 

[neal sanger]

What is a cho@d hammer.

 

[Fat Freddy]

 

[agedhorse]

What cut off frequency?

Look up a speaker's cut-off frequency, it's important.

 

[Downunderwonder]

What cut off frequency?

Remains to be seen once you give it some welly. You might find low C D even E or F at volume also fart it. Some retuning could be in order but you said it sounds good apart from the B farts.

Look up a speaker's cut-off frequency, it's important.

Not sure how filter cutoff frequency relates to the speaker. I thought it was more relevant to the box tuning and excursion limited power handlIng v power applied.