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I start working on this box. it will be with two 8' PVC interchangeable round and flared ports. For daily the box will have 7.6 cubic feet, 2 x 8' flared round ports, 32Hz with 27' depth and 97.4 sq inch area For SPL the box will have 8.2 cubic feet, 2 x 8' flared round ports. I will start from 42Hz tuning to find the car peak freq

Hello guys I have: VW Golf 4 hatchback car 2 x AA Mayhem 15' D1 Skar Audio sk 4500.1d 2 x Crescendo F31-Hp Stock alternator 120A I need advice: Daily box Wired to 0.7 Tuning 32hz What surface area of port ? What internal volume ? Spl box: Wired to 0.25 Car peak around 50Hz tuning box 47 Hz what internal volume ? what surface area ? I need this volumes and surface area from users who play with mayhems or similar subs like n2, n3, zcons etc. Thank You Michael

2 x AA Mayhem 15' D1. The maxim internal brut volume for this subs is arround 7.5 cu ft. Now I have a box tuned to 37Hz with 39.4 x 23.8 x 20.1(inch) external dimensions But i want to make two box, one for daily one for spl.

About sound system. Stoc alternator 120A Two stock batteries Sound Deadener = 0 Before buying this car I have Alpine 9855 head unit with KCA - 620m usb interfaceTwo Ascendant Audio 15' D1 ordered from BKOLF04 (thank you Brian)Skar Audio SK 4500.1dSkar Audio PAX - 8'Skar Audio VX1 - ST1DLS CA21 As soon as I got the car I put the hu, I make a box with 6.7cu ft for subs, 110sq inches of port area, and 37Hz tuning. Port is between subs like in pictures. With oem 120A alternator and two stock batteries for the first time to spl wired to 1ohm, I did 147.2 dB @ 37Hz and 147.5 dB @ 42Hz. I say pretty good for the first time with this setup.

Hello Guys Michael is my name I'm new here and, last month I bought a black 2001 VW Golf 4, 1.9Tdi, 116hp, 6 speed, AJM, 129 000 miles, As an option: climate control, board computer, sports seats, leather steering wheel, armrest, electric windows, abs, esp, asr, oem spoiler etc. I put the original 17' GTI wheels Santa Monica.

My system will be for daily music tuned to 32hz. For the future maybe I make another burp box tuned around 42Hz and I go to competition, and put some dB one the table. For the moment i want to make my system for daily use. But i want to choose the amp which I can play music and I can go to the competition later. So what is the best choose amp for this option ? (with that electrical) PS: Don't worry guys !! I ordered one mayhem and one recone kit togeter, so...let's put some power on it ! Cheers !

Hello guys. I ordered from bkolf04 one AA Mayhem 15 d1 (thank you Brian), wired to 0.5 The box will be 5 cu ft, with 70.5 sqin port area, 14.1 sqin / cu ft. tuned to 32Hz 240A of one alternator 2 xs d3100 + one stock under hood. what amplifier do you recomend ? I want to see in that sub 3.5k of clean power. With impendance rise of box what you recomend: one amp with 3.5kw of power to 1 ohm, or 5.5kw power ? For that power i need a litle box with 4 cu ft ? thank you

not ofense Tirefryr but, I think it's not bad my electrical output: 2 of xs power 3100 + one 85Ah new stock under hood + 250A of alternator. I hope it's enough electrical for 3-3.5kw of clean power. I am wrong? the box will be 4 cu ft with 70.5 sqin area. Tuned to 32Hz.

diference betwin 2,5k to 3.5k with clean signal, will be for few seconds maibe max one minute. Good point with 4cu ft. Brian recomended me the same volume 4cu ft. For the future i want to put it in another burp box, and play a litle with 42-45Hz. the sub will be wired to 0.5 so what is the best choice for my aplication: bc3500 or bc5500 ? thank you guys

me to waiting for black friday, i have some stuff on list like AA and sundown

Can I please get the name and number to the closest dealer to zip chicago ilinois 60610 thanks

verry nice sir !

nothing ?

about car: hud: alpine 9831 amplifier: aq 3500.1d 1 stock alt 75A + second alt 100A 1stock bat + 2 deepcycle & 0awg cable box will tune to 32hz, space 5cf is not a problem. music: rap / hip hop / dub step; with low hits It will be used daily, and occasionally in the other box for SPL competitions. I do not know what choice is better: FI btl n2 fully loaded daily variant or AA Mayhem 15' Both are the same specs, same reputation. What choice should I do ? Or wait a few reviews about FI SP4 speakers ?

my bad, I mean to say sensivity

I still think about n2 or sp4 in my conditions I use it daily and i'm think the sp4 is a good variant, but I want to use it ocasionaly with another box for burping, and 4kw with low efficiency 86db is not a little power for that sub ?

my 1.4 gasoline motor can't load big alternators at 800rpm...that will turn it off. the amp aq 3500.1d have 1 x 4300w @ 1ohm (14.4), and I still think if use it at 0.5. i use stock bat 64Ah, and the 2 deep cycle, i haven't decided, maibe xs d3100s. I don't know what to choose. I'm sure the sp4 is better than n2 or mayhem in daily aplications. But in spl aplications, n2 can be over SP4 ?

i think is a great daily sub and better than n2 in this aplication. But in SPL applications ?

very nice what you do here. congratulations

I have 400$ (budget for buy a subwoofer) ive been looking/shopping for a nice big ""SQL"" subwoofer who can sing music at low frecv. I`m interested to hit low (28-30Hz). I listen rap - dub step music, my car is 4 door hatchback. HU is alpine 9831, amplifier will be HFi2000D. I have a second batteries and 0awg cable. Someone recommended me: TC Sounds LMS-R 15 SSA XCON 15 or 18 FI BTL I have not heard any version. I`m from europe and i want to buy it from USA. I also want your recommendations to buy best solution. Thanks.

i decide to buy ssa xcon with 2x2ohm(connect at 1ohm), and hifonics Brutus BRZ2100.1D or BRZ2400.1D. I thought that more power (2100-2400) means clean signal at 1000-1500 for daily. not true? Or is to much power ? It was run with two stock batteries 2x66Ah, stock alternator 85Ah, 0awg cable, and i can connect anytime a second HO, but still 85ah or something like that. I intend in the future a deep cycle battery Amplifier is a good choice? or something with less power ? thanks

I would run the sub at 2ohms not as hard on the amp or speaker unless setup properly.If you do go 1ohm I wouldnt run over the 1750rms power rating of the sub. so you recomended me to use that subw at 2 ohms? In this case i have to buy xcon dual 1ohm? This sub doesn't run properly at 1ohm at 1750w ?

i want to buy dual 2 ohm subwoofer and use it at 1 ohm.

thanks guys I decided SSA xcone 15' will buy next month and I will make a new thread with approveed enclosure, and of course my opinion about the choice. for this sub what amplifier its ok: hifonics Hfi2500d or Hfi2000d ? by the way I'm from Romania. ( facebook.com/mihai.keddy ) Thanks again for help.

thanks for replies TC is out of list. About FI BL (full) daily vs SSA XCON, what do you think ?