rms and max power - Toyota Nation Forum : Toyota Car and Truck Forums

MYCARcamry · 09-02-2003, 10:26 PM

hey i need help i have two 15 inch power pro pyramid subs, it has the power handling of up to 700 watts each but says 325 watts rms if i go over the rms limit but under the peak power handling would it blow out the subs ???

Luc · 09-02-2003, 11:17 PM

No, you will not blow your subs. The max power listing is only for sudden burst, and isn't meant to be fed that much of power continuously. Even if you get a more powerful amp, you can turn the gain down.

In theory, MAX = square root of 2 * RMS, but manufacturer typically list more for advertising purposes.

prophesized · 09-02-2003, 11:54 PM

yeah dont even bother looking at max ratings...only rms is important. id be careful giving those subs 325 watts though.

Flashmn · 09-03-2003, 01:42 AM

Its better to have a too powerful amp than too little. Going over the speakers power rating wont burn it, it'll distort. BUT if you go too little it'll start clipping and when it clips, air isnt moving in the voicecoil so it will only heat up and burn. So you'd be safe with an "overpowered" amp.

MYCARcamry · 09-03-2003, 01:44 AM

so you think i should get an amp that has 1400 watts by 2 chan?

Flashmn · 09-03-2003, 02:17 AM

Well why do you want an amp that big for those subs?

MYCARcamry · 09-03-2003, 04:46 PM

to set off some alarms and shake house windows duhhhhhh!!!!!!

Stealth · 09-03-2003, 06:22 PM

well you better get some new subs and learn to build boxes and a ton of other stuff.

aladdin102 · 09-03-2003, 06:31 PM

sorry to break it to u bud but pyramid subs aint the brand i would use to set off some alarms

prophesized · 09-03-2003, 09:47 PM

Quote:

Originally posted by Flashmn
Its better to have a too powerful amp than too little. Going over the speakers power rating wont burn it, it'll distort. BUT if you go too little it'll start clipping and when it clips, air isnt moving in the voicecoil so it will only heat up and burn. So you'd be safe with an "overpowered" amp.

clipping doesnt blow subs and for those subs i would just get like a 500-600 watt mono amp.

Flashmn · 09-04-2003, 05:11 AM

Clipping prevents the voice coil from moving which pumps air into the cavity built into the voice coil housing. Then the voice coil starts to heat up, and if the coil heats up, it can burn.
You can make windows shake and car alarms sound with a 10" with a proper box.

***Eye8Pussies*** · 09-04-2003, 12:43 PM

tip: do not run 1200watts thru two subs rated at 150rms.... :p

MYCARcamry · 09-04-2003, 02:37 PM

HEY THANKS ALOT FOR THE ADVICE OK THEN WHAT KINDS OF SUBS WOULD YOU RECOMEND FOR ME TO GET TO CRACK THE PAVEMENTS ?? (JUST A PHRASE) HOW MANY WATTS WOULD YOU RECOMEND ME TO GET TO PUSH ONE OF THE SUBS AND HOW ABOUT TWO OF THEM

aladdin102 · 09-04-2003, 02:41 PM

Quote:

Originally posted by MYCARcamry
HEY THANKS ALOT FOR THE ADVICE OK THEN WHAT KINDS OF SUBS WOULD YOU RECOMEND FOR ME TO GET TO CRACK THE PAVEMENTS ?? (JUST A PHRASE) HOW MANY WATTS WOULD YOU RECOMEND ME TO GET TO PUSH ONE OF THE SUBS AND HOW ABOUT TWO OF THEM

watch ur caps guy and i recommend 1,000,000 watts for car audio that way u can be the loudest thing ever created

Stealth · 09-04-2003, 02:42 PM

2 subs are barely louder than 1 sub so you might as well get like a 15 or 18 and give it a ton of juice. look into adire brahma's or digital designs subs if you got the money