fEARful™ Part Twelve (12)

[anonymous02282011]

nice work Bardley.

It's been recommended to silicone the larger parts to the board as they tend to wiggle a bit with sonic vibrations.

Probably want to wait until you test them though.

 

[mikeddd]

@Bardley: It took me about 6 hours total to do the three crossovers. I should've just sent mine to you. LOL! Yours look great. Do you plan on hitting the components with hot glue? In case you don't have a hot glue gun, they are dirt cheap. You can pick up a kit that comes with sticks of glue for about $12-$15 at Home Depot/Lowes or Harborfreight if you have one nearby.

 

[anonymous02282011]

I'll be using a double-layer of quilt batting. I've seen people cut "panels" out of the batting in order to fit neatly between the panel braces. I've also seen people just make one large "sheet" of the material and cover the entire panel. Is there a best way or does it not matter? I'd imagine leaving even the skinny braces exposed would leave a small, but reflective surface which is not good. Thoughts?

ps
By this point, you gotta know I'm a little OCD.

I cut 1" thick panels of cushioning for the first layer, and for the second layer I just cut larger sheets where applicable. Saves time and makes life easier down the road.

You can also separate "plys" off some damping material and use those thinner pieces to cover the exposed bracing edges.

I've got a couple pics in my wiki page (15/6 tube)

 

[mikeddd]

Thanks, adbass. That sounds like an idea. Would also keep the "puffiness" to a manageable level.

 

[Bardley]

I would actually like to know the same thing, mike.

 

[Bardley]

I actually did use hot glue. You just can't see it very well in the phone pics. The components are pretty secure. I tested each connection as I made it to the board. Everything is pretty straight forward.

Mike, your pics helped tremendously! It would have taken a lot longer without them.

 

[Bardley]

A good soldering station and the proper tools go a long way in speeding up the process.

 

[mikeddd]

I'm very happy to hear that my pics helped you. When I was trying to figure out what component went where, I went searching for "Good Pics" of the PCB crossovers; there weren't a lot out there. The best ones I found were from TBer mcapote. They were about 85% of what I wanted to see. I told myself that I'd take even better pics (or try to) than those. I wanted to capture/illustrate in a fool-proof way (that even I could figure out) what went where. If the pics helped you, then I succeeded. Thanks!

 

[Bardley]

I'm very happy to hear that my pics helped you. When I was trying to figure out what component went where, I went searching for "Good Pics" of the PCB crossovers; there weren't a lot out there. The best ones I found were from TBer mcapote. They were about 85% of what I wanted to see. I told myself that I'd take even better pics (or try to) than those. I wanted to capture/illustrate in a fool-proof way (that even I could figure out) what went where. If the pics helped you, then I succeeded. Thanks!

They most certainly did. Thanks!

With this build I feel like I'm following you on a trip through the jungle and letting you do all the machete work while I just walk behind you...

 

[mikeddd]

LOL! That's OK by me. I had a cut kit to start with. The REAL guys with the machetes are of course, GreenBoy and the guys that built one three years ago and had to measure and cut each piece themselves, figure out the crossovers, etc. Half the "work" I did was fixing my own dumb mistakes. If I had to build another one today, the build would go a lot faster b/c now I know where the potential pitfalls are.

 

[Bardley]

LOL! That's OK by me. I had a cut kit to start with. The REAL guys with the machetes are of course, GreenBoy and the guys that built one three years ago and had to measure and cut each piece themselves, figure out the crossovers, etc. Half the "work" I did was fixing my own dumb mistakes. If I had to build another one today, the build would go a lot faster b/c now I know where the potential pitfalls are.

I hear ya! I'm already having thoughts of a 12/6/1 Cube to go on top of this cab. I already have a second 18Sound driver and duratex. Hmmm...

I think I've got a bad case of fEARful gas.

 

[mikeddd]

The price of the drivers will keep my cab gas down to a low roar. Not complaining, but I wound up spending a lot more than I had originally thought the cab would cost. I'm going to try real hard to be done with buying gear for awhile...unless I sell some stuff I've got sitting around at home, of course. /evil laugh

 

[Bardley]

I really wish I had bought a 12 as well when I bought my 15 right before the price increases. That is the most expensive part. I, too, have spent more than intended but it is mostly from a bass I sold, sound gigs, and birthday money. I don't spend any money out of the family budget for gear. I'm sure I'll want to sell my old cab after this one is complete.

 

[rpsands]

That reminds me, I have a spare 15 if anyone has a 12 they'd like to swap for it. I realize that's the backward of the usual request, but it's out there of anyone wants to "upgrade"

 

[mikeddd]

Yep, my Avatar 212 might be out on CL, depending. It is always nice to have a spare cab, though. It does take up a lot of room in my office though.

 

[jeff5311]

You can wire the crossover sections in parallel, I think that's how most do it, just make sure you're jumping only th inputs and that the outputs only go to speakers.

I'm pretty sure that's how I did the wiring. I only jumped the inputs going to each crossover board.

The outputs go directly to the drivers where the +'s and -'s line up (except for the mid which is flipped).

So, to confirm, it's OK to jump input +'s and -'s? Or should I split the all the inputs into separate wires?

Thanks!

 

[mikeddd]

Stuffing is completed. Pics in build thread. I hate 3M-77 spray glue. Stuff gets everywhere. I'm almost done! Wil be jamming through it on Saturday!

 

[Rockin Mike]

Comparing these two setups,

1) a fEARful 12/6/1 + 12 sub
2) a single fEARful 15/6/1

Which would handle more power?
Which would sound better?

 

[Derek Kiernan]

Comparing these two setups,

1) a fEARful 12/6/1 + 12 sub
2) a single fEARful 15/6/1

Which would handle more power?
Which would sound better?

It seems you could reference 15/6 vs 12/12/6 on this graph for your answer:

If you have the mid at the appropriate level when running with the sub, they should sound incredibly similar.

 

[RamesesNiblick3]

My 12/6 is finally done! Here are the photos--

The finished cab, next to my Ric:

Thanks again to everybody who helped me out during the building process. I couldn't have done it without you!

Do you mind explaining how you've attached the grill?

I did mine on a ply frame, but I snapped a couple of frames before arriving at the current one. This one has held together, but is bent under tension on the right so I've been considering possible improvements.

.