? asked in Cars & TransportationCar Audio · 9 years ago

what is db when it comes to bass?

155 db's to rms what ?

ok i have a freind that has some speakers that hit 155 db's and i have a system that hits at 2400 rms what is better ??

3 hours ago - 4 days left to answer.

Additional Details

ok what is DB for subs ??? and RSM for subs ?? what i am wanting to know is this what one is better ??

i have 2 of Kicker 04S12X2 SoloX 12" Subwoofer, 2 Ohm

Technical Details

12" woofer

5,000 watts max power

2,500 watts rms

dual 2 0hms

vers this subs

2 rockford fosgate t1 's


Nominal Basket Diameter 18", 457.2mm

Nominal Impedance

4 ohms

Power Rating

Watts 800W

Music Program 1600W

Resonance 23Hz

Usable Frequency Range 40Hz-800Hz



Magnet Weight 109 oz.

Gap Height 0.375", 9.53mm

Voice Coil Diameter 4", 101.6mm


Resonant Frequency (fs) 23Hz

DC Resistance (Re) 2.5

Coil Inductance (Le) 0.61mH

Mechanical Q (Qms) 6.41

Electromagnetic Q (Qes) 0.29

Total Q (Qts) 0.28

Compliance Equivalent Volume (Vas) 639 liters / 22.6 cu.ft.

Peak Diaphragm Displacement Volume (Vd) 556cc

Mechanical Compliance of Suspension (Cms) 0.34mm/N

BL Product (BL) 13.4 T-M

Diaphram Mass inc. Airload (Mms

2 hours ago

3 Answers

  • 9 years ago

    RMS is a method of measuring power, in watts.

    dB is a measurement of sound pressure (SPL)

    They aren't directly related.

    Generally, very powerful systems can play very loud, but it takes a lot more than just power to be loud.

    You have to have high quality speakers, well designed and constructed enclosures, AND adequate power.

    As far as comparing the two.

    SoloX's are a lot more capable than T1's, but you're fighting a losing battle w/18's vs 12's.

    You didn't mention anything about the amps powering either of the subs.

    155 is extremely loud, but I think your two 12 soloX's set up very well could match or beat that.

    To get there I think you'd NEED that 5kw and a MAJOR electrical system upgrade to support that level of power.

  • Anonymous
    9 years ago

    The db means decibels for the subs higher the db the louder the sub would be. Since u got the T1 look at the P3 n p2 there db will be lil.smaller in number wise

  • 9 years ago

    I hope QUAZ sees this, quaz you're a Pu$$y! If I knew where you lived I would sit right in front of your house and bump all day long! Hahhahahha if you don't have a real answer don't answer the question, nobody gives a **** if you're offended by out subwoofers

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