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2 12" DC lvl 3 Enclosure Design


Mile High Guy

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what's up everyone. i bought 2 12" DC lvl 3 subs and i'm looking to design an enclosure for them. i would like them to be loud and hit nice lows also. i listen to hip-hop and electronic music mainly. i know i want to go ported (around 33hz or so) but don't know if the box needs 1 port in the middle of the subs or if it needs to be dual slot ported. i've read many threads on these forums but haven't found much info about this subject. i have a 2000 honda accord and the subs will be running off a T1500-1bdcp amp. my max dimensions are: H 16.5" x W 32" x D 17" so i believe i have the room the enclosure needs. i'll be having the enclosure made by a shop or someone else. any input or advice is greatly appreciated. thank you.

Headunit - Alpine 9857

Mids & Highs - T165,T1692

Mids & Highs Amp - T400-4

Subs - 2 12" DC Audio Level 3 M2s

Sub Amp - T1500-1bdcp

Alternator - MechMan 220a

Wiring - 1/0ga XS Power

Batteries - 2 Optima Yellow Tops

Read the fucking manual. Jesus Christ.

I dunno about that Steve...

Chuck Norris doesnt even do push-ups, he just pushes the earth down.

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A single chamber is all I could fit, suggested Vb = 1.5cuft and driver displacement is = 0.16 cuft from DC:

Enclosure Specifications:

Fb = 33 Hz

Vb = 3 ft^3

Subwoofer Mounting = Flush Mounted

External Height = 16,5 in

External Width = 32,89 in

External Depth = 17 in

Port Width = 2 9/16 in

Cut List:

* All Dimensions in Inches.

* Wood Thickness is 3/4 for all Parts.

External Enclosure Parts:

Front = 29 9/16 x 15

Front Internal = 28 13/16 x 15

Back = 32 7/8 x 15

Left & Right Sides:

Side 1 = 15 1/2 x 15

Side 2 = 14 3/4 x 15

Top & Bottom = 32 7/8 x 17

L Port Internal Assembly Parts:

Front to Back = 12 15/16 x 15

Extension = 8 5/16 x 15

Assembly guide (generic dimensions):

SCDB.png

Some space efficient bracing should be used front to back at least.

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ok cool. i was hoping to keep the port in the middle for symmetry but since that's not an option this design will work just fine. ty for your input. of course, my main goal is to get the most out of these subs and i'll do whatever is needed for that. thx again.

Headunit - Alpine 9857

Mids & Highs - T165,T1692

Mids & Highs Amp - T400-4

Subs - 2 12" DC Audio Level 3 M2s

Sub Amp - T1500-1bdcp

Alternator - MechMan 220a

Wiring - 1/0ga XS Power

Batteries - 2 Optima Yellow Tops

Read the fucking manual. Jesus Christ.

I dunno about that Steve...

Chuck Norris doesnt even do push-ups, he just pushes the earth down.

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You can fit them in there with a center port and still keep 3 cubes net at that tuning..

'11 Jeep Patriot New Build

Head Unit: Pioneer AVH-P3200DVD

Front: Massive CK69 Components

Front Amp: Massive NX2

Rears: Infinity Kappa's

Subs: 8 Sundown SA-8 v2's

Sub Amp: AB 450.1

XS D3100

Come on 150!

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i dont think you need bracing either. not on low power like that with the double baffle.

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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You can fit them in there with a center port and still keep 3 cubes net at that tuning..

ok and would the port dimensions still be the same? is there a site that you know of where you are able to sketch everything out along with entering the measurements? i would like to have a basic layout and measurements with it when i find a shop to build this enclosure for me so that i know the box will be made to the correct specs and tuning freq. ty

Headunit - Alpine 9857

Mids & Highs - T165,T1692

Mids & Highs Amp - T400-4

Subs - 2 12" DC Audio Level 3 M2s

Sub Amp - T1500-1bdcp

Alternator - MechMan 220a

Wiring - 1/0ga XS Power

Batteries - 2 Optima Yellow Tops

Read the fucking manual. Jesus Christ.

I dunno about that Steve...

Chuck Norris doesnt even do push-ups, he just pushes the earth down.

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i dont think you need bracing either. not on low power like that with the double baffle.

you knoe your on smd when someone posts that they are gonna be running 1800 watts and someone calls it "low power". haha

lol for real huh? i realize a T1500-1bdcp is consider small to many here on the forum but it's the biggest amp that i've ever ran. can't wait for my lev 3s to get here!

Headunit - Alpine 9857

Mids & Highs - T165,T1692

Mids & Highs Amp - T400-4

Subs - 2 12" DC Audio Level 3 M2s

Sub Amp - T1500-1bdcp

Alternator - MechMan 220a

Wiring - 1/0ga XS Power

Batteries - 2 Optima Yellow Tops

Read the fucking manual. Jesus Christ.

I dunno about that Steve...

Chuck Norris doesnt even do push-ups, he just pushes the earth down.

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sorry its really not that much power to be honest. I would be careful with that much power on level 3s though. unless they are the new ones.

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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