New (old and busted) bass bins

grapplesaw

grapplesaw

Veteran and General Yakker
Joined
Aug 13, 2014
Messages
2,786
Location
Vancouver
Tagline
---
As a result of watching so many of you building big bass horns and being offered these ones for free I am going to rebuild some old hockey rink bass bins. They are setup with 15” ( busted) woofers. I have taken advise from my Buddy Andrew who as you know build a hell of a system. The agreed first try will to use two Eminence 12” bass woofers in each cabinet. So I pulled the speakers and opened them up to dry out for a few weeks. The plywood on the horn radius is 1/4” and delaminating. I think I will lay additional layers of epoxy and Matt or plywood. This thread will move slowly but stay tuned.8D513FAE-9DBF-4BB1-8733-E3868207C9B6.jpeg
 

Attachments

  • 84D7B663-C64E-4369-91F3-D795E7C97AFB.jpeg
    84D7B663-C64E-4369-91F3-D795E7C97AFB.jpeg
    3.2 MB · Views: 20
  • 86198FF6-73BB-48B9-A884-373196E43970.jpeg
    86198FF6-73BB-48B9-A884-373196E43970.jpeg
    33 KB · Views: 21
  • 4AD421A4-69D8-412C-94F3-D4EE87469761.jpeg
    4AD421A4-69D8-412C-94F3-D4EE87469761.jpeg
    48.5 KB · Views: 21
  • 8605DA8E-B854-422A-9590-EDFB08C48F05.jpeg
    8605DA8E-B854-422A-9590-EDFB08C48F05.jpeg
    31 KB · Views: 17
Last edited:
I’m thinking we could squeeze six tens in there… that’ll curl your hair.

How good is the horn geometry? There’s a free program called “hornsrep “ or some like that where you can design optimal horns. It goes back to the days of the 386 I think.
 
J!m said:
I’m thinking we could squeeze six tens in there… that’ll curl your hair.

How good is the horn geometry? There’s a free program called “hornsrep “ or some like that where you can design optimal horns. It goes back to the days of the 386 I think.
Click to expand...
Thanks I will look into that
I will put the woofers in then do some sound pressure sweeps. The plan is the use these below 80 hz or less.
 
What G-saw didn’t mention was how to get this past the Mrs;) I suggested he would be an absolute hero if he could turn them into her Christmas present, a God among men if you will...

I may consider building fork pockets into my next build, in another lifetime or parallel dimension...
 
What are the existing woofers? They look how should I say... “inexpensive” but that doesn’t always mean shit. Are the coils ok? Can they be repaired with a surround job? Might be worth the $15/each for a standard evilBay surround kit and try them if they’re otherwise ok?
 
AngrySailor said:
What are the existing woofers? They look how should I say... “inexpensive” but that doesn’t always mean shit. Are the coils ok? Can they be repaired with a surround job? Might be worth the $15/each for a standard evilBay surround kit and try them if they’re otherwise ok?
Click to expand...
I think they are dumpster material but I will look at them.

here is the horn speaker program site. I will get it tomorrow

http://www.hornresp.net/
 
Last edited:
grapplesaw said:
I think they are dumpster material but I will look at them.
Click to expand...
That kinda look like it... every once in a while the optimist in me comes out... doesn’t usually work out good! Those will look epic in a home system once you doctor them up a bit. If they sound as good as they look I hope you have good home insurance...
 
AngrySailor said:
That kinda look like it... every once in a while the optimist in me comes out... doesn’t usually work out good! Those will look epic in a home system once you doctor them up a bit. If they sound as good as they look I hope you have good home insurance...
Click to expand...
I’ll see if I have insurance after I run in the two 40 amp 240 volt feeds. One for front and one for the rear.
next amp I do I am going to do in 240 volt. It may be something of interest.
 
NeverSatisfied said:
Hmmm, I bet the new speakers would sing powered by a WOPL 1000. Better invest in some drivers that can handle that kind of power.[/QUOT
Click to expand...

so the plan is to fit two Eminence 250 watt 12’s in each cabinet. I Will try them at 16 ohms with a dual 500 to power both. Or a couple of bridged 400’s I have built. One per cabinet. That way the amp will see a 8 ohm load. I’m liking that idea now
 
Not to thread hack you G-saw, but question for the designers/builders... has anyone over volted a WOPL? If so what did they tolerate and what gains were found by the higher rail voltages?
 
grapplesaw said:
so the plan is to fit two Eminence 250 watt 12’s in each cabinet. I Will try them at 16 ohms with a dual 500 to power both. Or a couple of bridged 400’s I have built. One per cabinet. That way the amp will see a 8 ohm load. I’m liking that idea now
Click to expand...
I like how your thinking, go big or go home.
 
AngrySailor said:
Not to thread hack you G-saw, but question for the designers/builders... has anyone over volted a WOPL? If so what did they tolerate and what gains were found by the higher rail voltages?
Click to expand...

Yes, I've seen rail voltages of 112. Getting close to max volts for the outputs...very bad...
 
You must log in or register to reply here.
Back
Top