Getting pretty close to the dusty part.
Got any weekend plans?


Finished up preparing dinner, and decided to do my homework while it baked.
Ran the whole JW2 catacombs scene. Gunshots are not mild, lol. Kinda hard to discern how much of the tr is the mini’s and how much is the BOSS. Which is awesome, exactly the desired effect.
The mini’s are clean too. The bass perception follows the surround sound, doesn’t stay centered on the front wall. I’m sure having the sealed 18’s behind MLP may help slightly, but they are way attenuated compared to the mini’s.
Didn’t notice the air movement so much, but the RP1 blast is just continuous lfe.

Just for comparison (and not cause I was having fun, of course ), ran JW1 club. I believe its overall a better bass demo with the music along with gunshots.
The gunshots are much lower level than the JW2 ones, but have way stronger subsonics comparatively. The BOSS was busy.
I kicked the mv up a few db just cause I can, and everything handled it well.

I’m smiling and my ears are teling me I might have had it a bit loud.

Chris


Sent from my iPhone using Tapatalk

Not really, sounds like the in-laws will watch our daughter so I can pound through them and get them over with. Ideally assembly would finish Saturday maybe some sanding and then finishing Sunday. We shall see!

Yep..... telling the SO that I ONLY have TWO 21" woofers..... so and so has EIGHT 24s so mine are not so bad..... are they?


Juju

That's the best when you can have time all to your self building a box that's what slows me down all the time when I get pulled away every 15 mins.

A little more done on box 1

Box two is just one step behind box one. We shall see what tomorrow brings

Might be too late now, but I was just rereading your thread and took a closer look at this pic.

With that much gap, I’d build up the sides with bondo instead of ripping down with a sander. Sanding will put a noticeable curve in the panel. Plus, think of all the mdf dust you could avoid.

If you do sand, you will want to use coarse discs, 120 would take all day.

Sorry about my poor timing.

Chris




Sent from my iPhone using Tapatalk

I do have my black 50 grit. I usually do not use it on MDF because it melts it that fast. I am going to strip the panel down. I had to do that on the Stormbreaker box. The 2x4 bracing killed me on that one, not the MDF. The vac has kept the dust down, just the really heavy stuff does not get sucked up, which does not create the WAF disaster the light stuff does.

I’m just worried about the curve showing if you have the two boxes touching, or close to it. If they’re separated it shouldn’t be noticeable.

Glad the vac is working out. Pretty sure dust disaster inside might be more Wife Murder Factor than WAF.

Chris


Sent from my iPhone using Tapatalk

I only got an hour or so to work on them today. Sealing the back requires a lot of PL3... Hopefully sanding does not chew out too much of the glue.

Sanding, lots of sanding, should be ready for primer!

You are making great progress.... soon they go BOOM!!!


On a sidebar: one of my buddies offered to help with my build in exchange to be indoctrinated into the cult of the BASSHEADS. He wants to learn how to build his own boxes...he has built a few sealed in the past and wants to take it up a notch..... so class will be in session on the 29th!!


WINNING!!


Juju

Looking good. How did dust mitigation turn out?

Chris



Sent from my iPhone using Tapatalk

Not initially, but using black electrical tape on the sander so the vacuum hose fit directly to the sander made it way way better.

Told ya you needed to hook it up directly
Lol

Glad to hear it worked out (and you’re not divorced)
I had to electrical tape my table saw hookup too, but due to cracked plastic

At least you’re almost through the dusty part. And should soon be to the noisy part

Chris


Sent from my iPhone using Tapatalk

I still have a lot of vacuuming to do down there later lol. Next sanding is 240 on the primer once I get a second coat on!

I got a coat of primer on, took awhile and I got the bracing on one of the hatches. Saturday will be the next work day.

I was amused by the bracing design. ‘H’ for hatch, wouldn’t want to forget what that extra panel is for.

Chris


Sent from my iPhone using Tapatalk

One coat on most of the boxes.

Looking good man your almost done

Sent from my SM-N950U using Tapatalk

One more coat of paint. Still need to do the tops and hatches. Hatches are fitted. Hatch gasket tape is in place. Getting close! Edit: these things are getting really heavy lol.

I got up at 5 this morning and put a second coat on the hatches and tops, so they can be moved into place after work Last pit fall is getting the wires terminated. I was at buddies on Friday and we were going to solder the wires to the ringlets, but he was out of solder and the solder we borrowed did not stick to the chopper wire. I am hoping to hit the hardware store and pick up crimp down ring terminals. The binding post are the heavy duty Daytons.

This build really has me thinking of building a mini. Will a 21" driver work with the mini?

No, I really wanted it to, but it needs more space than the cabinet has available. The cabinet can be adjusted to be deeper and then it would work with some vent tweaking to deal with the added displacement, I would expect 4 to 6"s would cover it.

Which pretty much ends back at a devastator v1.

Chris

Almost, 17.7cuft vs 21.25cuft and the resonator will hit 100Hz well on most any pro 21" vs about 90Hz or a little less. It would be a very similar beast, but not quite the same thing.

You’re going to end up with a ridiculous number of dev variants at this rate. Which is completely awesome, right up till you design one that would be even better in my space than the mini.

Chris

If someone asks I will probably design it and then add it to the Index. Naming will change to DEV18-4025.530-20H-5.2F when it really gets out of hand. That would be for an 18" with the middle number being the box dimensions, the 20H designating the tune of the box and 5.2F being the rear chamber displacement.

I'm interested in the 40" height of the mini. Would be great for me if a design with the aforementioned height was available for a 21

I will add that to the design list, it should be a versatile box able to integrate with most anything