amp having too much power for subs?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=72909
Printed Date: September 07, 2025 at 5:40 AM

Topic: amp having too much power for subs?

Posted By: anonymous user
Subject: amp having too much power for subs?
Date Posted: February 15, 2006 at 9:46 PM

i recently traded my PSP with many accories for some car audio, which conists of te following earthquake PHD2000W amp, (2)TremorXR-12 subs, and one of earthquakes amp wiring kits.i would like to know if a Earthquake PHD2000W amp would over power 2 Earthquake TremorXR-12's?

heres the specs thier site lists.
PHD2000W

Number of channels: 1 / Mono Block
Max power output:      2000 Watts
RMS power 2-ohm:        1000 Watts
RMS power 4-ohm stereo:      500 Watts
Damping factor:      >800
Cross over slopes:      24dB/OCT
THD:      >0.016
SNR:      104dB
Class:      "D" Digital
Speaker connection:      10-Gauge
Recommended
power connection:      4-Gauge
Input type:      Independent Low Level RCA

heres the specs on the subs....

      MODEL: TremorXR-12

    * 800 watts
    * Fs = 27Hz
    * Qms = 5.3508
    * Qes = 0.7217
    * Qts = 0.6359
    * VAS = 2.40Ft
    * Xmax = 0.5"
    * 87dB 1W/1M
    * Revc = 6.67
    * Levc = 5.9mH @ (1 kHz)
    * 2" Single Voice coil/8ohms

im planning to wire them up in a parallel to get a 4ohm load.
posted_image

Replies:

Posted By: kfr01
Date Posted: February 15, 2006 at 11:38 PM

Amps don't break speakers or overpower speakers. Idiots do.

Turn the gain down a bit and learn what clipping sounds like. Don't clip the amplifier. You'll be fine.

Read https://www.bcae1.com/ for more information.

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New Project: 2003 Pathfinder

Posted By: stevdart
Date Posted: February 16, 2006 at 7:33 AM

Dude, you're stuck with the name "anonymous user" forever. Not very personal, is it? ;)

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

Posted By: jstruckman
Date Posted: February 16, 2006 at 10:19 AM

If it is a monoblock amp, why would there be a 4 ohm stereo rating? i am guessing that is a typ-o and they mean 4 ohm mono. Any way since you have two 8 ohm subs you will be running a 4 ohm load over all, which the amp claims 500 watts, that means 250 watts to each sub. The rating of the sub is 800 which is probably max rating, so more like around 400 watts RMS. In this case, You will not be overpowering the subs at these ratings.

Jazzy

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