How much subwoofer is too much?

Discussion in 'Gen 3 Prius Audio and Electronics' started by Juan Ramirez, Feb 4, 2025.

  1. Juan Ramirez

    Juan Ramirez Junior Member

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    I have a small (100 watts) sub in my 2015 prius and am looking to upgrade. I've done a lot of research and I came across the idea that some subs may draw too much power for the prius battery to handle. I was told by a rep that I should not go much past 300 RMS (depending on ohms as well).

    Does anyone have experience adding a sub and whether 400 RMS (for instance) is too much power?
     
  2. AzusaPrius

    AzusaPrius Senior Member

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    When the car is ON the big hybrid battery tops off the little 12 volt battery.

    You should be good up to a 1,000 watts and 500rms.

    You also can always add a power capacitor to the 12 volt battery.
     
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  3. frodoz737

    frodoz737 Top Wrench

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  4. Juan Ramirez

    Juan Ramirez Junior Member

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    Cool. Where?
     
  5. frodoz737

    frodoz737 Top Wrench

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  6. Juan Ramirez

    Juan Ramirez Junior Member

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    I had no idea what you meant but now I see it. Cool. I also see that you put the sub level knob in the slot under the Power On button. I'd noticed it before on my own car but wasn't sure if that is what it was for. I assume you ran the line down the driver's side? Was it easy to hide once you got to the dashboard area? Anyway, went ahead and bought a 400" 10" sub.
     
    #6 Juan Ramirez, Feb 5, 2025
    Last edited: Feb 5, 2025
  7. frodoz737

    frodoz737 Top Wrench

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    I paid to have this custom install done two days after taking delivery of the car...intentionally buying the base level II Prius. Lot of thought went into this...but I later removed the capacitor as it is not needed with a digital amp. Unfortunately I no longer have this car because I sold it to buy my Son's College Graduation Tacoma.
     
  8. Grit

    Grit Senior Member

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    I love to see the 400” sub, and the box got it!!!
     
  9. Paul Gregory

    Paul Gregory Senior Member

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    I hate too much bass.
     
  10. Radiospank

    Radiospank Member

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    bro have you tried searching the forums first? I'm sure ive posted about this on my own install. I've been running audio in the prius for over a decade with zero problems. Don't listen to these people who say it's too much lol, currently i have a 1200 watt rms JL hd for subs and 500 watt rms zapco and 400 watt Morel amp all running on a yellow optima top with a lithium power bank for voltage drop.
     
  11. ASRDogman

    ASRDogman Senior Member

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    bass is good... for getting information out of prisoners... and it really messes up all the internal organs! (y):whistle:
     
  12. ETC(SS)

    ETC(SS) The OTHER One Percenter.....

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    o_O

    My subs were 400' not 400"
    BOTH will give you tinnitus.

    No such thing as too much bass, although I'm pretty much a 'catch and release' guy.
    Crappie (White Perch) tastes better if you're looking to put fish in the freezer.
     
  13. ASRDogman

    ASRDogman Senior Member

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    No, never release, illiminate... If you release, they come back, and bring friend.