JL Subs help to decide

[gercho]

The 13W6v2 is near equal to the 12W7 in terms of linear displacement. The only problem is that it requires a 6.0 fft^3 enclosure tuned to 20hz with a rather large 3.0" x 16" vent 43" long tuning at 20hz.

If the W3's are actually W3v3's, that would be the route to go. Other wise the 13W6v2 would be a nice option.

The 12W3v3 models well in a 5.5ft^3 enclosure with a 2.5" x 16" vent 40" long. This tunes it to 21hz.

12W6v2 works very well in a 4.5 ft^3 enclosure with a 2.75" x 16" vent 54" long tuning to 21hz.


All of the above enclosures result in an f3 of 19hz anechoic. The 13w6v2 models about 2db higher in output across the entire usable range. Although using 2 of the 12W3v3 would give you more output as well as allow for better in-room response capabilities.

Hi, I've been playing with the info Annunaki gave me. I've modeled the box for the 12W3v3 to see how it looks. Besides maybe someone trying to build a box for them may use the info.
It's a cube with a net internal volume of 5.5 cubic ft and a vent of 2.75"H x 16"W and 54"L
The MDF is 1" thick.
Please let me know if you think there's something wrong.

 

[gercho]

Hi, one quick question, I've found a dealer who have two Infinity Kappa 10" VQ U$S280 each. I said that because TLSGuy calculated a box of 2.87 cu.ft for them (nice an small). Now I was wondering if the Kappa 10" VQ is comparable with the JL 12W3v3 that was about to buy at U$S295. Thanks in advance.

 

[annunaki]

Hi, I've been playing with the info Annunaki gave me. I've modeled the box for the 12W3v3 to see how it looks. Besides maybe someone trying to build a box for them may use the info.
It's a cube with a net internal volume of 5.5 cubic ft and a vent of 2.75"H x 16"W and 54"L
The MDF is 1" thick.
Please let me know if you think there's something wrong.

I would suggest some window type bracing like shown in some of my build threads. Other than that it looks pretty good.

 

[gercho]

I would suggest some window type bracing like shown in some of my build threads. Other than that it looks pretty good.

Thanks! I din't draw the bracing but I'm going to put some after reading your threads Annunaki
Any comments about my Kappa - JL question?

 

[annunaki]

Thanks! I din't draw the bracing but I'm going to put some after reading your threads Annunaki
Any comments about my Kappa - JL question?

The Kappa is a very capable driver no doubts. I am not a big fan of their (sub) drivers based upon some prior experiences with reliability, but they are linear units. They just need to be kept within their (albeit tight) tolerances.

 

[lsiberian]

Hi, one quick question, I've found a dealer who have two Infinity Kappa 10" VQ U$S280 each. I said that because TLSGuy calculated a box of 2.87 cu.ft for them (nice an small). Now I was wondering if the Kappa 10" VQ is comparable with the JL 12W3v3 that was about to buy at U$S295. Thanks in advance.

I'd put the Kappa VQ ahead of the 12W3v3, but that's my opinion.

Either way you need to build something. I don't think either one would be a mistake. Since you've already designed the JL you might consider that.

 

[gercho]

The Kappa is a very capable driver no doubts. I am not a big fan of their (sub) drivers based upon some prior experiences with reliability, but they are linear units. They just need to be kept within their (albeit tight) tolerances.

Good to know your opinion Annunaki, most of the comments on Kappa subs are good ones but is nice to have another opinion/expereince. When you refer to tolerances (I'm far from a sub expert) you mean Xmax and power input?

 

[gercho]

I'd put the Kappa VQ ahead of the 12W3v3, but that's my opinion.

Either way you need to build something. I don't think either one would be a mistake. Since you've already designed the JL you might consider that.

Thanks for your input Isiberian, I like the Kappas because of the DVC design and (as mentioned earlier) TLSGuy model a nice little enclousure for them (easier on the wife when buying two!). I'll try to decide ASAP. thanks again.

 

[lsiberian]

Thanks for your input Isiberian, I like the Kappas because of the DVC design and (as mentioned earlier) TLSGuy model a nice little enclousure for them (easier on the wife when buying two!). I'll try to decide ASAP. thanks again.

I think pleasing the wife is a losing endeavor. She's not gonna be a fan either way. So don't let that factor in your decision.

 

[gercho]

They finally arrive

Hi guys, I finally have the two 12W3v3!! I must confess that they're fine drivers (at least the contruction quality tell's that).
I'll start a new thread as soon as I start the build of the boxes.
Last question, I was planing to buy an EP1500 amplifier down the road, but a friend pointed me to a Peavey Pvi-1000 (360Wx2@4Ohm) that's U$S200 cheaper than the EP1500. Do you think it's a good option? thanks!!!!

 

[lsiberian]

Hi guys, I finally have the two 12W3v3!! I must confess that they're fine drivers (at least the contruction quality tell's that).
I'll start a new thread as soon as I start the build of the boxes.
Last question, I was planing to buy an EP1500 amplifier down the road, but a friend pointed me to a Peavey Pvi-1000 (360Wx2@4Ohm) that's U$S200 cheaper than the EP1500. Do you think it's a good option? thanks!!!!

Its a lot less power, but it may do the trick for your needs.

 

[gercho]

Its a lot less power, but it may do the trick for your needs.

I was worried mostly about the quality (noises at low volume for example) because the EP1500 has a 400Wx2@4Ohm, not so much of a difference with 360w.

 

[lsiberian]

I was worried mostly about the quality (noises at low volume for example) because the EP1500 has a 400Wx2@4Ohm, not so much of a difference with 360w.

Noises at higher level become an issue, but not at low levels unless you have interference of a ground loop.

An amplifier should only makes noise when a sound signal enters the semiconductor.

They might be using the same brand of amplifier anyway.