Hello,
I`m not complete new to building subwoofer boxxe`s but i never designed one complete by my self. Now i have a friend who asked me to build one. I came up withe a idee but i`m scared that it wont work..
So i wanna know if some one can help me out pleas. The build hight is not allowed to go higher then 34cm this is max.. Below i show you what i had in mind.
The vent is 50x340mm and is 700mm long in total.
View attachment 26549444View attachment 26549445
Thanks in advance. the volume off this box (withe all the wood inside+driver) is exactly 63.72L
And this is wat is given on the website aswell
(
http://www.jbl.com/resources/Brands/jbl/Products/ProductRelatedDocuments/en-US/BoxesandParameters/W12GTi_rev_f.pdf)
-sub= W12gti (details below)
General Specifications
Size
12
Series
Gti
Audio Specifications
Peak Power
4000W
Power Handling (Peak)
4000W
Nominal Impedance
3 or 12 ohms
Frequency Response
18Hz–1kHz ±3dB
Power Handling (RMS)
700W
Sensitivity
(2.83V@1m) 91dB
Woofer Specifications
Driver Radiating Area
(Sd – in2/cm2) 74.3/480
Magnetic Gap Height
(Hag – in/mm) 1.0/25.4
Voice Inductance
(Levc – mH) 0.75 (parallel VC connection)
Voice Coil Height
(Hvc – in/mm) 2.6/66.04
Suspension Compliance
(Cms – ?m/N) 135.28
Voice Coil
vDual 6-ohm Differential Drive®, 3" (76mm) diameter
Compliance Volume
(Vas – ft3 / l) 1.58/44.75
Maximum Excursion
(Xmax –in/mm) 0.8/20.32
Vented Polepiece
Yes
Progressive Spider
Yes
Surround
Nitrile-butylene rubber – one-piece with gasket
Low-Frequency Transducer
12" (305mm) Kevlar®-impregnated paper cone
Total Q
(Qts) 0.51
Diecast Aluminum Frame
Yes (vented)
Motor Force Factor
(Bl – Tm) 14.64 (parallel VC connection)
Electrical Q
(Qes) 0.55
Voice Coil DC Resistance
(Revc – ohms) 3.2 (parallel VC connection)
Mechanical Q
Q (Qms) 6.68
Dimensions
External Diameter (in)
12-1/4
External Diameter (mm)
312
Mounting Cutout Diameter (in)
11
Mounting Cutout Diameter (mm)
280
Mounting Depth (in)
10-1/4
Mounting Depth (mm)
260
-amp= Jbl gto 1201.1 (details below)
GTO1201.1II
• 787W RMS x 1 channel at 4 ohms and ≤1% THD + N
• Signal-to-noise ratio: 70dBA (reference 1W into 4 ohms)
• 1114W RMS x 1 channel at 2 ohms, 14.4V supply and
≤1% THD + N
• Dynamic power: 1339W at 2 ohms
• Effective damping factor: 6.348 at 4 ohms
• Frequency response: 10Hz – 302Hz (–3dB)
• Maximum input signal: 6.1V
• Maximum sensitivity: 75mV
• Output regulation: .14dB at 4 ohms
• Dimensions (L x W x H): 18-11/16" x 12-5/16" x 2-3/8"
• Fuse rating: 3 x 40A
