We went with 4 jb1500n's since if something goes wrong there cheap enough to replace later on.
im yet to really push my JB1500Ns, but from what theyve shown me so far, i think im going to be happy with them. next week im building two more cabs, and september ill be buying two more drivers.
4 should sound pretty epic!
4 should sound pretty epic!
Hi,
I finished building them, and they sound great, but I've had absolutely no time at all to do any measurement. And I don't have the regular old SS15 design to compare them to. Gonna be a while before I get around to measuring.
sweet. can you comment at all about them going lower than 50hz? if you can tell with what you heard? Definatly thinking of using this design..
I'm interested in how the JB1500N fares, it looks appealing on paper! For the price, anyway... and with the right ply it'd be a cheap build all up.
Where in NSW are you located?
Just built 4 with form ply and jb1500n drivers. $400 for 5 sheets of 1.8mm ply and $600ish for drivers. These perform very very well for the money. Running all four off a crown xti 4002. all up inc amp, fittings/leads it was about 2.5k
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It includes the amplifier @ $1100. The rest of the fittings are dual speakon plugs, internal wire, grills, grill covers, speakon leads, handles, paint screws, glue and probably more that I can't remember.
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They are pretty damn loud although not as low as I would like. They have been running at near clipping with a limiter of -3db and a long *** release time on that crown amp for at least 16hrs straight with no issue. They sound very clean as long as you don't cross them over too high (I set to 150hz).
I realised I could nearly run 6 subs off one of these amps... maybe later on haha
Ive searched through the thread and only found i few 4ohm driver recommendations.. Any thoughts on which driver to match the design like the 3015lf do? Have been looking at the B&C 15NDL76 & Fane collosus 15XB. Im not too bothered about the weight, as long the box is getting the highest spl possible. Am I on the right track or would other drivers be a better choice?
I have a feeling the 700W quote is from the test I posted, where I mentioned the output figures were just at clip/limit light.
I did some quick amp tests (also posted in the TH-18 thread) in briged configuration and found the voltage out was less than half of the rated power with the clip limter engaged and the clip/limit light fully illuminated (heavy into it).
When I measured my SS15 just under clip (light flickered), the amp was not bridged and the clip limiter was on.
Just food for thought (and I hope to test with SPL AND actual voltage numbers the next time)
not directly relevant to the SS15 cab, but since its the driver thats going into mine, i figured id post up what ive just done to start the break in process.
JB1500N break in 30-50hz sweep - YouTube
JB1500N break in 30-50hz sweep - YouTube
After doing plenty of research on different ideas for a PA subwoofer, I landed here. I tried jumping around from the first page, but decided to skim all 166 pages. Now that my eyeballs can focus again, I decided I needed to post up...
First: Thanks to all involved! This is a great project with a lot of community support.
Now then, I feel a bit confused on what design to go with. There seems to be ~3 versions of this...
1. dbell's original (post #53)
2. Djim's "extended" (post#691)
3. dbell's "SS15v2" (post#1499)
Is there a comparison of the 3 directly? I saw some original vs extended comparisons... It seems the v2 is pretty new and I don't think I saw it tested? Sorry, if this information is all pretty available, I'll be happy to go more read-happy on this thread... just took a long time just to skim through all those pages! Or perhaps, a general consensus on which one to build?
I just to hate to build one to find that it isn't as solid of a build as another. Thanks for whatever information can be provided.
First: Thanks to all involved! This is a great project with a lot of community support.
Now then, I feel a bit confused on what design to go with. There seems to be ~3 versions of this...
1. dbell's original (post #53)
2. Djim's "extended" (post#691)
3. dbell's "SS15v2" (post#1499)
Is there a comparison of the 3 directly? I saw some original vs extended comparisons... It seems the v2 is pretty new and I don't think I saw it tested? Sorry, if this information is all pretty available, I'll be happy to go more read-happy on this thread... just took a long time just to skim through all those pages! Or perhaps, a general consensus on which one to build?
I just to hate to build one to find that it isn't as solid of a build as another. Thanks for whatever information can be provided.
Hi there: Which one you build depends on your requirements. #1 JBell's origional is flat down to about 45hz, #3, JBell has tested his v2 flat down to 40hz. #2 Djim's extention of the origional SS15 is considerably larger and his posted tests show a reduced band width from the origional SS15. Numerous people have constructed the Origional SS15 and according to their posts are using them on sound reinforcement jobs. Since the SS15 is easy to construct and uses (now more expensive) driver 3015lf, you can build one ( or one of the each) and judge if the performance meets your requirements. ...regards, Michael
The original works so well -- just build that.
Use the 4015lf if you plan on abusing it.
Use the kappa pro 15lf2 for a budget, lower power option.
If budget is concern, I'd rather have a pair of kappa pro loaded cabinets, vs a single 4015lf cabinet.
32hz 24db/oct high pass. The high pass is not an option.
Use the 4015lf if you plan on abusing it.
Use the kappa pro 15lf2 for a budget, lower power option.
If budget is concern, I'd rather have a pair of kappa pro loaded cabinets, vs a single 4015lf cabinet.
32hz 24db/oct high pass. The high pass is not an option.