Subwoofer and More than enough watts
10-17-2005, 05:03 PM
#1
0 Watt CAFz'r
Thread Starter
Join Date: Jul 2005
Posts: 42
I am confused why amps with a larger wattage are needed to run smaller wattage subs... This is what i mean...
One dude is running two 250Wrms Subs with a 250Wrms amp. They are bridged and in parrelel. That means 250W is going to each sub right?
Another dude is running three subs that have a 300Wrms rating with a 900Wrms amp.
QUESTION_-_-_If a 250W amp puts out 250W to each sub why does a 900W amp put out 300W to each sub?
One dude is running two 250Wrms Subs with a 250Wrms amp. They are bridged and in parrelel. That means 250W is going to each sub right?
Another dude is running three subs that have a 300Wrms rating with a 900Wrms amp.
QUESTION_-_-_If a 250W amp puts out 250W to each sub why does a 900W amp put out 300W to each sub?
10-17-2005, 05:34 PM
#2
3 subs x 300watts each = 900 watts
2 subs x 250watts each = 500 watts not 250watts
#1 dude is as confused about power ratings as you are. #2 dude is bang on.
Answer to question is that a 250w amp puts out 250w to each sub IF the amp is rated at 250 watts per channel. IF this amp is 250 watts in total (both channels combined), divide by 2 to get the per channel rating. So it is a 125 watt per channel amp. 900 / 3 = 300.
There is much more to this than a simple question. There are many more factors to consider than just watts. Throw wattage out the window for that matter, it will not tell you how it sounds nor how loud it will go. It will not tell you if it is a good match or not.
Are you trying to build a system or just understand how things work?
2 subs x 250watts each = 500 watts not 250watts
#1 dude is as confused about power ratings as you are. #2 dude is bang on.
Answer to question is that a 250w amp puts out 250w to each sub IF the amp is rated at 250 watts per channel. IF this amp is 250 watts in total (both channels combined), divide by 2 to get the per channel rating. So it is a 125 watt per channel amp. 900 / 3 = 300.
There is much more to this than a simple question. There are many more factors to consider than just watts. Throw wattage out the window for that matter, it will not tell you how it sounds nor how loud it will go. It will not tell you if it is a good match or not.
Are you trying to build a system or just understand how things work?
10-17-2005, 06:52 PM
#3
0 Watt CAFz'r
Thread Starter
Join Date: Jul 2005
Posts: 42
I already installed my own system, i kept it simple thow. Now i am just trying to understand how the complex stuff works.
Dude 1 is a good friend of mine and Dude 2 installed both his and Dude 1's system. What I don't get is how Dude 1's system was way louder than mine and i was running 1 300Wrms sub on a 300Wrms amp.
Dude 1 is a good friend of mine and Dude 2 installed both his and Dude 1's system. What I don't get is how Dude 1's system was way louder than mine and i was running 1 300Wrms sub on a 300Wrms amp.
10-18-2005, 03:50 PM
#5
500 Watt CAFz'r
Join Date: Dec 2003
Posts: 541
Originally posted by MR2NR:
You hear in decibels and not watts. You have an amplifier and not a wattlifier.
You hear in decibels and not watts. You have an amplifier and not a wattlifier.
but it all depends on the amp is it putting out 300 rms or 300 max big difference there. we could have the same stuff but in different box and that would make a big difference and the car that it is in also has an effect on the sound coming from the sub.
10-20-2005, 09:19 PM
#9
the fact that you can hear his from two times the distance as yours doesn't say much other then his vehicle probably allows more road noise and yours has better sound deadening.
That being said, granted it's nice to show of your stereo at times, i don't think i'd judge how cool/good a stereo is by how far away people can hear ya coming.
That being said, granted it's nice to show of your stereo at times, i don't think i'd judge how cool/good a stereo is by how far away people can hear ya coming.
10-21-2005, 11:05 AM
#10
0 Watt CAFz'r
Thread Starter
Join Date: Jul 2005
Posts: 42
ya, that is basically why i bought a system. But i don't go booming threw town. 1st reason, i don't want a ticket. 2nd reason, every body would think i was a show off. 3rd reason, i don't want everyone to know about my system cuz their are alot of kids around my town that steal.
