Questions

[hyhat33]

I'm buying a new system for my car and I have a couple of questions. I'm looking at a speaker enclosure for 2 10" subwoofers. I'm buying a 1600 watt amplifier. The 2 10" speakers I'm looking at are the pyramid imperials. They say that they can handle 1000w max a piece and 500 RMS. what does RMS mean? The next question is what is a crssover. mY friends say it's a neccesary for big systems but I don't even know what it does. Explain?

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[MikeofTulsa Moderator]

well to be honest almost everyone on here will tell ou that pyramid sux....which is true....so i truly doubt they will really handle 500w rms....rms = root means squared (or in lamens terms) the amount of power an amp or sub can constantly push or handle...also the rms is the only thing you should pay attention to the max is useless...hope i've helped

 

[insane bmr 10+ year member]

if you are going to hook up a 1600 watt class d amp to a pair of low quality 10's that are only rated at 500 rms you better know what your doing. Because if you don't set the right ohm load, those speakers will last you about two 40hz bass beats...In other words you will blow your subs to hell.

 

[hyhat33]

Alright um what is ohms all about I mean I don't get it if the speaker says it can handle 1000 watts peak doesn't that mean it can handle 1000w amplifier? I thought I was going to have these speakers underpowered!!!! Crossover what is it and why?

 

[insane bmr 10+ year member]

Max power only means that the sub can handle loads of up to 1000watts for short periods of time. If your speakers are 500 Rms than that means continuos power handling. As in you speaker s can handle 5 hundred watts consistently. If you hook up that amp so that it is feading all of that power at once to those subs, you are going to blow them. When you buy subs you have to look at more then just power handling. you have to look at how many voice coils it has, what the impedence is (in ohms) all kinds of other stuff as well. I'll bet you didn't know that when you buy a JLW3 you have to choose between 2,4,and 6 ohms. If you don't know they will sell you the six ohms and you will not get your moneys worth. Very simply defined an ohm is the unit used to measure the resistence to the passage of an electric current. In other words an ohm is pretty much just the word they use when they are describing the amount of electrical current you can deliver to a sub from an amp. Check it out, If you have a sub that can take 500rms at 6 ohms and you have a 500watt class D amp to push the sub you only acutally have about half of that power delivered to the subs because of the impedence. So you end up wasting 250 watts of power. And that is just throwing away money. Now if you have a sub that can take 500rms at 1 ohm and you have an amp that is rated at 500 watts then you will be able to use all 500 watts to power your sub. And that means louder bass. Remember the less ohms, the more actual power from your amp.//content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif

 

[hyhat33]

Allright lets say I buy the not so good pyramid 500w rms 1000w max and I buy a 1600 watt amp that has 4 channels. Does this eman I have 4 possible outputs? In lamens terms do I have 4 pairs of opsitive and negative terminals foroutputs? I mean I only have 2 rca input jacks. Or do i? So could I just use 2 of the channles menaing that the 2 speakers would only be getting 400 watts a piece right? And if I decided I need more bass could I bridge 2 channels together using a positive from one and a negative from the other making 1 channel annd hook that up to my subs? Then I could just turn down the levels correct? And it's not like I'd have the amp turned to full I'd put it at hpf or whatever that setting is so it only feeds bass to the sub not everything.

 

[hyhat33]

Here are some specs for the stuff I'm buying I wanta make sure it's all going to work before I order it Couldyou tell me if this amp will work with these 2 speakers Please!!!

Amp:

Power MAX (2 Ohm): 800 Watts x 2

Power RMS (4 Ohm): 280 Watts x 2

Bridged Power (4 Ohm Only): 1600 Watts x 1

Tri-Mode Operation: Yes

Remote Subwoofer Level Control: YES

Line Outs: YES

Inputs: Speaker/Line Level

Low Pass Crossover (Variable): 40Hz - 150 Hz

High Pass Crossover (Variable): 120Hz - 400Hz

Bass Boost (Variable): 0 - +18 dB

Treble Boost (Variable): 0 - +12 dB

Signal to Noise Ratio: 105 dB

THD @ RMS Watts: 0.01%

Frequency Response: 9Hz- 50K Hz (+/- 3dB)

Channel Separation: 90 dB

Damping Factor: 125+

Dimensions: 11"W x 2-3/4"H x 21-3/8"

Speakers (there will be 2 of these hooked up to the amp):

RUBATEX GASKET

GOLDEN PLATED STEEL BASKET WITH GOLDEN TERMINAL

GOLDEN PLATED BUMPED & VENTED STRUCTURE

2 INCH KAPTON VOICE COIL

60 + 60 OZ MAGNET STRUCTURE

GOLDEN INJECTED POLYPROPYLENE CONE

WIDE NON-FATIGUING RUBBER SUSPENSION

1000 WATTS MAX, 500 WATTS RMS

 

[Durex 10+ year member]

what kind of amp is it?

 

[splunky 10+ year member]

Are you talking about the pw10280"s if so I hope they arent more than $31 each. If they are let me know. Also there is nothing wrong with pyramid in general some people are just stuck on names as long as you know what you are looking for name brands mean very little (most of the time). As far as a crossover is concerned a crossover just allows the proper frequency for the speaker to pass. In the case of a subwoofer that would be a low pass. Finally the fact still remains that there is no law in regards to fraud protection in car audio. Therefore they can stamp 1000w on a 200w amp and get away with it and most do. Usually though you will find most drivers (subs) are underated and will handle more than they claim they will. However those drivers only having a 2" kapton voice coil I doubt it that doesnt give much room for throw wich forces you to put them in a sealed enclosure in order to take the juice. This creates another problem alltogether. SEALED BOXES ****!! Anyway my fingers hurt. lol.