Truth....

subzero
5,000+ posts

CarAudio.com Veteran
Ok,

I have been looking around to see what is out there and this is a list of amps that keep getting pushed my way.

Said I need two ---> http://www.alpine-usa.com/US-en/products/product.php?model=PDX-1.1000 one for each sub

did not say how many http://mobile.jlaudio.com/products_amps.php?amp_id=440

did not say how many http://www.precisionpower.com/amps/d1000.asp

As for my own thoughts. I figure I should match RMS with RMS so here is my list.

http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=18418

http://www.hifonicsshop.com/product/XX%20Thor

http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=19694

Let me know what you would Push Soundstream t5-12's with.

//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif Then we will talk about competition alternators and battery setup.

http://www.lightav.com/car/hifonics/hifonicsxxvamplifier.html

 
If you are into SPL and listen mostly to bass heavy music, I would math the RMS values between speakers and amps a little more closely. If you are into SQ, you can double or more the RMS power of the amp with no problems.

 
If you are into SPL and listen mostly to bass heavy music, I would math the RMS values between speakers and amps a little more closely. If you are into SQ, you can double or more the RMS power of the amp with no problems.
Isnt that backwards?

For SPL I usually put 5 times the rated RMS power to the sub.

For SQ I stay right about at the RMS rating.

 
If you are into SPL and listen mostly to bass heavy music, I would math the RMS values between speakers and amps a little more closely. If you are into SQ, you can double or more the RMS power of the amp with no problems.
its actually 5.33457598 x the power. You didnt factor in the quality constant into the equation also subtracting the spl constant.

 
Isnt that backwards?For SPL I usually put 5 times the rated RMS power to the sub.

For SQ I stay right about at the RMS rating.
I wouldn't be answering that question from a guy that actually competes successfully in SPL comps, they would already know what to do. Unfortunately, the average Joe on the street would just end up blowing stuff up with that kind of power. And with the 2X overpower recommendation for SQ systems would also come the advice to watch the gains.

 
I wouldn't be answering that question from a guy that actually competes successfully in SPL comps, they would already know what to do. Unfortunately, the average Joe on the street would just end up blowing stuff up with that kind of power. And with the 2X overpower recommendation for SQ systems would also come the advice to watch the gains.



LOL Ed lester is not an average joe and "He" is a season competitor in dbdrag. SOOO yeah i think he can ask that question.

 
I wouldn't be answering that question from a guy that actually competes successfully in SPL comps, they would already know what to do. Unfortunately, the average Joe on the street would just end up blowing stuff up with that kind of power. And with the 2X overpower recommendation for SQ systems would also come the advice to watch the gains.

I'm sorry could you clarify what you just said in your post because I didnt understand it.

I believe the information you gave the OP was backwards as Ed Lester mentioned.

 
LOL Ed lester is not an average joe and "He" is a season competitor in dbdrag. SOOO yeah i think he can ask that question.
I was assuming the OP is not. I am saying that Ed (and all the other guys that chimed in) know what they are doing and so I would expect they would not be asking questions like this - my standard answer (given in the first post), is that if some "Joe" on the street is just into getting loud and doesn't really know what he's doing (hence the reason for having to ask the question), then I always advise to match RMS pretty closely to avoid blowing stuff up.

Most all of the SQ guys I know, on the other hand, pretty much know about gains and the such and normally turn it down when it starts clipping noticeably. So having a lot more power on tap ends up being good for headroom.

 
two different reasons for more power.

SPL comp the idea is to get as loud as possible. so more power for a short time is ok. the speaker might not last for an hour, but it doesn't need to.

SQ the idea is to get a very high possible peak power. because that spec is typically worthless, people just use generally oversized amplifiers and set the gains and HU settings for a desired SPL level even if its not anywhere near maxing out the equipment. This helps to avoid clipping when signal processing is used.

 
Activity
No one is currently typing a reply...
Old Thread: Please note, there have been no replies in this thread for over 3 years!
Content in this thread may no longer be relevant.
Perhaps it would be better to start a new thread instead.

About this thread

subzero

5,000+ posts
CarAudio.com Veteran
Thread starter
subzero
Joined
Location
Chandler, AZ
Start date
Participants
Who Replied
Replies
10
Views
928
Last reply date
Last reply from
Anonymous
IMG_20260516_193114554_HDR.jpg

sherbanater

    May 16, 2026
  • 0
  • 0
IMG_20260516_192955471_HDR.jpg

sherbanater

    May 16, 2026
  • 0
  • 0

New threads

Top