Comments on: How do I get my system louder?

By: Jeffsron

Jeffsron — Tue, 10 Aug 2010 00:53:30 +0000

Sean,
The problem with Legacy is that is a pawn-shop brand, they are cheap because they use cheap parts. I would visit your local car audio shop and ask about their entry-level amps. these are usually good quality, but at a fair price, you are not paying the big-name brand. They will likely try to sell you the next-level gear, which is not a bad thing either, as the quality typically goes up with the price. Just make sure it has a good warranty and that you hear it first, and don’t buy it at a swap meet or pawn shop. You have Kenwood subs, why not get a Kenwood amp to match?

By: Jeffsron

Jeffsron — Tue, 10 Aug 2010 00:48:39 +0000

Ryan,
If you plug in the SPL or sensitvity rating from those Alpine subs into the formula, and do the math, you will have your answer. A sealed enclosure does not give you any dB gain, but the hatchback does, so add in about 9 dB for the hatch and you should be really close to you actual overall dB. As far your gain, you should set that by turinng the head unit up until it distorts, then back it off a little. Then adjust the amp gain till the subs distort and back it off. That is your max output, don’t turn the head unit up past that point, or you will distort you gear.

By: sean

sean — Sat, 07 Aug 2010 00:54:05 +0000

hey jeff ive got 2 new 12″ KENWOOD 3012 single 4 ohm 2010 series both are 1200w peak power and 400rms in a sealed box! but what i cant figure out is whats the best amp i can use for the least amout of money to be able to push them hard enough to where its actually worth listening too i mean i dont know how bout i had a 2700w single channel class d mono block legacy ion amp and for some reason it fried on me and i only had it for 5 days =( so what amp would you suggest???? thank you!

By: Ryan

Ryan — Wed, 14 Jul 2010 21:21:35 +0000

Hi Jefferson,
I have 2 12 in. Alpine Type R subwoofers in a sealed box in the back of my 2002 Kia Spectre Gsx hatchback. I am running a 3000 watt (so I was told) Alpine amplifier to them at about 3/4 gain and 4 gauge power and ground wire. Do you think there is anything I can do to make it better or improve it if I didn’t do it correctly? And how many dB do you think I’m getting? (I don’t know the specs on box sorry) Thanks.

By: ethan

ethan — Mon, 10 May 2010 03:06:05 +0000

i have 2 12″ vr3 vsw120 in a ported box and i was wondering what would be the best budget friendly amp to buy.

By: Rodrigo

Rodrigo — Tue, 20 Apr 2010 20:28:05 +0000

Hi jefferson
i just installed two re se 12″ 600rms watts each dual 4ohm. Im running them with a hifonics 1610d. the box is ported i dnt really know its turning. but i thinks its around 2.0cu ft. each of these subs are rated at 86bd. how many db you think i should be hitting? Thanks.

By: Jason

Jason — Tue, 23 Mar 2010 01:00:29 +0000

Hello, I was wondering if I use a bigger box, will I get more DB for SPL woofers. I have 2 12” Orion HCCA 12.4 woofers. I wanted to fiberglass a box but im not sure if ported out of MDF is better and how big should this be? This will be going into a 05 Durango with 3rd row seat removed I have L 47.5” x H 30” W 22”. These are going to be powered by 2 HC2000 Kenitik batterys on a 250 amp alternater. Amp will be a power accoustic BAMF 5500/1. How would this sound? Thanks for your help.

By: Mary

Mary — Tue, 09 Mar 2010 23:42:49 +0000

i have a 97 s10 blazer with 2-15 xs15D with 2-5500 spl gorilla series amps on them. i have three batteries and my alternator has been beefed up. the specs for the enclosure says 4.5cuft per sub. i have a 9.1cuft enclosure that is ported with 4×5″ ports two for each sub. i am at a 148db on the window but i am concerned that the enclosure is what is keeping me from getting the 150db that i am after. any suggestions?

By: tim

tim — Sun, 14 Feb 2010 01:39:51 +0000

i am getting 2 phoenix gold rsd 124 12″ competition subs and running them off a lanzar vibe 286 4000 watt 2 channel amp in a car with the back seats down so technically a hatchback? what is the decibels that i can achieve the subs are rated at 94db.

By: Miguel

Miguel — Sat, 09 Jan 2010 02:30:35 +0000

Hi jefferson
I have a 2003 F150 extended cab. i have all kicker audio. I lifted my back seat 4″ and i have 2 12″ kicker cvr subs 2ohm each. and powering them is a kicker zx750.1 i have 61/2 kicker components in the front and kicker 6×9′s in the back powering them is a kicker zx350.4. my problem is i have each sub in there seperate box a cubic foot each and they sound alright but i want the bass to hit harder. i was thinking of rebuilding my box and taking the amp out from the middle of the two boxes and making the box just one as long as the back seat and just dividing it in the middle of the box. i wanted some experties from you. will this help my subs hit the lows better and i hear boxes in trucks sound better upside down? Or do you suggest some diffrent subs? i willing to try new stuff. thanks!