Box recommendations?

[Zach58]

Currently I have a bbox that’s alright but I know my subs(SDR’s) can hit harder than they are. Could anyone tell me if either of these enclosures are worth it? First is $212 and carpeted one is $160. Or does anyone have any other recommendations?

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[spokey9 5,000+ posts]

You'll get the best result having one made to your subs specs

 

[2RZ-FE 10+ year member]

GP Audio glue and screw enclosures might be better if you’re willing to put something together. Different sizes and tuning options.

 

[deez283 10+ year member]

You'll get the best result having one made to your subs specs

I agree.

If you are willing to build yourself, We may be able to help you with a proper enclosure.

 

[Zach58]

I agree.

If you are willing to build yourself, We may be able to help you with a proper enclosure.

I was actually thinking about building one myself. I just don’t really have that much knowledge when it comes to audio.

The subs are 2 12” Skar SDR’s and the amp is a Skar 1500.1D
I would like the size to be pretty much like those Skar box’s attached. Only because any bigger probably wouldn’t fit in my truck. The height really doesn’t matter tho.

 

[spokey9 5,000+ posts]

Measure the space you have available that'll help you decide box dimensions

 

[Firewalker]

Skar's boxes are not known for quality and many have had them just fall apart after a couple months. Plus the tuning isn't right either.

Best bet is to either build a box yourself with a someone doing you a box design or contact GP as stated above and they can do a design in a glue it and screw it setup where you just have to put it together and then carpet it or stain or paint it.

 

[spokey9 5,000+ posts]

I'm pulling my backseat this winter so I can go ported...sometimes it's a sacrifice to get to the magic

 

[Firewalker]

I have plenty of room even with a 4.5 cubic foot box. Still got 50% room left back there. However after being told today when they were fixing the running board brackets, I was told the rockers are gone behind the running boards...I'm ready to just blow the Explorer up,lol.

 

[spokey9 5,000+ posts]

I have plenty of room even with a 4.5 cubic foot box. Still got 50% room left back there. However after being told today when they were fixing the running board brackets, I was told the rockers are gone behind the running boards...I'm ready to just blow the Explorer up,lol.

My amps and battery gotta sit where my seat is in order to run my sql's ported in my saturn vue


Vented enclosure: 4.25 ft^3 tuned to 22 Hz. >20 in^2 of port surface area per driver.

It's gonna be a big friggin' box

 

[Firewalker]

Would you be shocked that with a 69AH Tractor Supply AGM, 320 amp HO Alternator from J&S, running that Cab-45 or the SIA 3.5k along with either the Pioneer GM-D8604 or the MTX-704 in there even when at full tilt I stay at 14.0-14.7? Because even when it dips it goes right back to 14.7 or 14.8 instantly.

Yeah mine is tuned to 33hz and 4.5 cubic feet for dual 12". And at those specs I'm right in the ballpark for any 12" out there. Which is why when I get the 1k I need it will be a set of one off custom subwoofers from djdillion that can handle that Cab-45 and then some. IIRC the weight comes in at 100lbs per suboofer,lol

 

[SlugButter]

If you were local I’d build you a box for 200$. it seems like a ton of people have the Skar SDR. It’s the sub I’ve done boxes for most this year. I’ve seen a few of those skar boxes fall apart. They’ll work ok for the SDR, but I’ve had 2 builds for the Skar evl subs in the last month and both of them had blown panels on the Skar box. If you go with a prefab, get the largest box you can get and set a subsonic filter. The port tuning on those prefab boxes is higher than they advertise. If you’re planning on listening to rebased music or playing low test tones in a prefab box, you’ll blow those SDR subs. Playing under the box port tuning will kill subs.

 

[Doxquzme Premium Member]

Bbox's are pretty well built, they’re just Atrends with a 1" thick face. What is the volume of each chamber in the current box? I'd consider keeping the box, getting new subs! NVX makes a pretty darn good 12" dual 2 ohm vc’s vsw122v2 or dual 4ohm vc subs, the vsw124v2. Either option world work in a 1.25 sealed enclosure or a a 1.75 cu ft ported enclosure and you can get 2 for less than or right around $200.00. Check out Parker the BASS head on YouTube, he likes these for good SQ overall in the under $100.00 woofer class.

 

[Doxquzme Premium Member]

If you were local I’d build you a box for 200$. it seems like a ton of people have the Skar SDR. It’s the sub I’ve done boxes for most this year. I’ve seen a few of those skar boxes fall apart. They’ll work ok for the SDR, but I’ve had 2 builds for the Skar evl subs in the last month and both of them had blown panels on the Skar box. If you go with a prefab, get the largest box you can get and set a subsonic filter. The port tuning on those prefab boxes is higher than they advertise. If you’re planning on listening to rebased music or playing low test tones in a prefab box, you’ll blow those SDR subs. Playing under the box port tuning will kill subs.

Actuallu using a subsonic filter allows you to usae a smaller box tuned the same as a bigger box or the same box tuned lower "(BASS box pro)".

 

[spokey9 5,000+ posts]

Actuallu using a subsonic filter allows you to usae a smaller box tuned the same as a bigger box or the same box tuned lower "(BASS box pro)".

The ssf prevents the sub from playing below the tuning frequency of the box...it doesn't help you run a smaller box

 

[SlugButter]

Actuallu using a subsonic filter allows you to usae a smaller box tuned the same as a bigger box or the same box tuned lower "(BASS box pro)".

The ssf prevents the sub from playing below the tuning frequency of the box...it doesn't help you run a smaller box

The prefabs don’t actually account for sub displacement also. It doesn’t matter as much on the larger enclosures, but on the smaller single 10 boxes for example, the sub can take a 1.5 cube box tuned to 35 HZ to 1.3 cubes tuned to 37 hz just by putting the sub in the box. This might actually meter higher than a lower tuned box if it doesn’t fall apart, but i wouldn’t like music with a 37 hz port tuning personally.

 

[Doxquzme Premium Member]

The ssf prevents the sub from playing below the tuning frequency of the box...it doesn't help you run a smaller box

That's not what BASS box pro software shows me. With an active subsonic filter, prior to amplifaction, the SSF (or technicaclly the infrasonic filter) does what you say, true, but also allows the woofer to work in smaller boxes as it no longer is having to work on those frequencies blocked by the filter, kind of like it sees the box as if it were a smaller driver. In some instances, substantially smaller boxes. There are limitations too, but all the same, SSF is always a good idea when you are tuning an octave or two above. Rarely is that not the case with car audio subs. Different story in home theater where a lot of infrasonic material is added to the soundtracks. Hit me up if you ever want an expample, I'll run the numbers and show you the graphs, it's kinda cool.

 

[spokey9 5,000+ posts]

That's not what BASS box pro software shows me. With an active subsonic filter, prior to amplifaction, the SSF (or technicaclly the infrasonic filter) does what you say, true, but also allows the woofer to work in smaller boxes as it no longer is having to work on those frequencies blocked by the filter, kind of like it sees the box as if it were a smaller driver. In some instances, substantially smaller boxes. There are limitations too, but all the same, SSF is always a good idea when you are tuning an octave or two above. Rarely is that not the case with car audio subs. Different story in home theater where a lot of infrasonic material is added to the soundtracks. Hit me up if you ever want an expample, I'll run the numbers and show you the graphs, it's kinda cool.

The smaller box would have a higher tuning frequency...and the ssf would still just be set to protect your sub playing too far below that tuning frequency...it's not a magic filter that allows a sub to play the same in a bigger or smaller enclosure...

 

[Doxquzme Premium Member]

No sense in arguing, the software has helped me do just that, many, many times. When you apply a SSF prior to amplification, (an active filter as we are discussing here) BASS box pro still allows one to keep the tuning frequency the same or lower and allows you to use a smaller or same size box with varying results well within tolerances. I’m an EE not a sound engineer so can’t speak to why that is, mechanically, I just know that it is done with regularity. If I had to guess, I would speculate that because an enclosure is part of the mechanics and the box is acting as component of the actual woofer, when you change what the driver has to respond to by eliminating those lower frequencies from ever entering into the equaiton, you can change the box component too. I have pretty extensive experience in designing home theater subs (in the hobby for 42+ years, subs for at least the last 35) where size is a major consideration for aesthetic reasons; the application to car audio is the same when it comes to the design of any sub for that matter. Granted, you may want a bump at certain frequency in a car sub that you don’t want in a home sub, either way BASS box pro will allow you to manipulate this when an active SSF is used in the overall design circuit and I'm pretty confident that the design engineers that wrote BASS Box Pro know a smidgen more about this than the two of us put together.