Feel like I’m missing out on bass


xPexelz

CarAudio.com Newbie
Sep 22, 2020
21
1
Michigan
I have 2 dc audio lvl 4 12’s 1500 rms a piece running them at 1 ohm on a Skar skv2 3500. The bass is there but for 3000 watts I was expecting more. I have stock alternator and a xs power d3100 in the trunk big 3 upgrade and dual runs of 1/0 to the amp. All ofc wiring. I do have a high output alternator coming in soon. Will that let the amp put out more before clipping? Any help would be appreciated. I also double checked the ohm load they’re at 1 ohm.
 

Sophia13913

CarAudio.com Newbie
Aug 24, 2020
14
0
UK
i'm by no means an expert or anything even approaching/approximating that, but i would definitely imagine a HO alternator would help alot, and actually make use of your big 3 & 1/0. However (and i could be wrong here), isn't clipping when you're feeding too much power to the speaker and the sign wave flattens out? I've also heared of headunits sending a clipped signal which doesn't fit with this but i suppose that could be a case of poorly powered too. Other things worth checking are amp grounds and rca quality but you sound like you know your stuff so i imagine that's all fine. Sorry for the lack of answers but hope the new alternator helps 😊
 

Marve_Lous

CarAudio.com Well Known
Aug 4, 2019
419
169
Houston, TX
Vehicle, location, and box type will also effect the sound as well. I was expecting much more out of my sub a few months ago too. I had someone design me a box, changed the location, now I feel very satisfied with the boom.
 

Buck

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I have 2 dc audio lvl 4 12’s 1500 rms a piece running them at 1 ohm on a Skar skv2 3500. The bass is there but for 3000 watts I was expecting more. I have stock alternator and a xs power d3100 in the trunk big 3 upgrade and dual runs of 1/0 to the amp. All ofc wiring. I do have a high output alternator coming in soon. Will that let the amp put out more before clipping? Any help would be appreciated. I also double checked the ohm load they’re at 1 ohm.
Put your enclosure specs up, and you will see a HUGE difference with a bigger alternator.
 

Buck

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Put your enclosure specs up, and you will see a HUGE difference with a bigger alternator.
I've done a ton of DC boxes because I worked with some small dealers. Let me check it out and I'll tell you what I think of it, and I'll be honest about it.
 

Buck

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i'm by no means an expert or anything even approaching/approximating that, but i would definitely imagine a HO alternator would help alot, and actually make use of your big 3 & 1/0. However (and i could be wrong here), isn't clipping when you're feeding too much power to the speaker and the sign wave flattens out? I've also heared of headunits sending a clipped signal which doesn't fit with this but i suppose that could be a case of poorly powered too. Other things worth checking are amp grounds and rca quality but you sound like you know your stuff so i imagine that's all fine. Sorry for the lack of answers but hope the new alternator helps 😊
Clipping and voltage drop at the amp go hand in hand. People will make clipped signals (where the wave looks more like a square wave the worse the clipping is) because the amp should be a certain loudness. So people turn up the amps sometimes too much to make up for the lack of electrical system. So then you have low voltage and clipping, which really kills your equipment. Makes everything heat up, the sub, the amp, low amp alts are really at full output and struggling.
 

Buck

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It’s a 250a small case from brand x and box dimensions are 34in wide 14.5in tall 22in deep and the port is 3in wide 29in long kerfed slot port I have the subs inverted facing forward.
Do you have the actual cubic footage and what not? Try putting your motors in the box and see how that sounds as well. Sometimes it does make a difference.
 

shredder2

CarAudio.com Elite VIP
Nov 19, 2017
3,003
581
Az
I did a set of lvl4 12s in 3.75ft3 60in2 of port and it did great on a bc4k. Wired down, strong electrical and all too. So the power was a bit more. The enclosure was close airspace wise to what you got but larger overall because of port area/length.
Its making the guy pretty happy and his blazer sad.
39in2 of port IS a little low imo.
 

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