(2) Polk db124 Subs not pushing enough (not much juice)

[kngo22086 10+ year member]

I did the gain tutorial with the 2 Polk DB124 DVC Subs in a sealed enclosure. I have a pioneer amp gm-7100 series. The amp puts out 360 wRMS at 2 ohms. When i did the gain tutorial i had the volume at 80% and i had the voltage at 26 Volts with the calculations in the tutorial. I played a 35 hz bass tone at -3dB and i had no EQ/no bass boost, nothing else. Now when I'm play some music, theres not pounding of the subs at all. I know the subs can handle up to 720 RMS but i just can't afford a new amp right now. Or what other problems could it be?

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[kngo22086 10+ year member]

Also will it help a lot that I'm getting the pioneer 880prs in a few days to install with the 5v pre-outs?

 

[kngo22086 10+ year member]

anyone?

 

[BassAce 10+ year member]

I think it may be a combination of not having it wired correctly and a small amp.

 

[brtnboarder3241 5,000+ posts]

ehh..i got these subs..lol they arnt that "amazing" i think the hu will help a lot as did mine when i put it in..the subs always breaking 2..go ported though..

 

[Lakota 5,000+ posts]

Maybe you made an error when you set your gain?

 

[BassAce 10+ year member]

I see several problems that you may have.

1.) You may have the subs wired to give either a 1 or 4 ohm load. How do you have them wired?

2.) What you need is either a 1-ohm amp or a 4-ohm amp.

3.) If you had this setup wired at 4-ohms you would only be getting 180w rms total to both subs.

I hope this helps.

 

[kngo22086 10+ year member]

well now i just did a test tone of 50 hz at 0 dB and i set the voltage at 26 volts (26.83 in the max volts for 360 watts RMS). I notice a lot of bass and pounding out of the subs. Now when i play my music, my speakers just overpower the subs a lot. The subs hit somewhat but the speakers outweighed the subs and not balancing. The subs are in 2-ohm state

 

[kngo22086 10+ year member]

 

[bloodhound50 10+ year member]

I have the same subs but in the ported enclorure from polk. i have 800 watts rms going to these subs and they pound. its going to be partially becuase you have a sealed enclosure. you will get cleaner tighter bass but not as "boomy" or loud. you are seriously underpowering these subs tho and thats actually worse than overpowering. When i called a polk technician about these subs he said put 800-1000 watts rms to these things. besides you dont paly it at 100% of volume and with no EQ settings and loud/bass boosts you wont be pushing the full 800-1000 watts anyways. i suggest you get a new amp quick becuase unless warrentied you could blow these. it will help if you have a HU with sub control so you dont use bass boost or anything that can be harmful 2 subs either. i have no bass boost right now and my vision blurrs when in the car. also you should be getting about 40 volts to the subs. thats what im doing anyways.

 

[Pioneer~Saturn 5,000+ posts]

Hmmm, have u installed the Pioneer HU yet?...cuz I have the exact same amp, with the Pioneer 7700 HU (which can control the amp very well)...and only one Pioneer TS-W256C 10" in a small, sealed fiberglass enclosure and it can overpower my mids/highs (not too easily though) even with 4 speakers upfront (2 in doors....2 up on the dash on the pillars)...show some pics with the amp in it all wired up...and a pic of the settings on the side of the amp...