take em back... sorry, but ive heard nothing but bad about pyramid. they are the cheap ebay subs. believe me, ive heard some and they sounded bad, spend the extra money and ull be happy.

 

what about sony xplod the 15 inch ones?

 

Pyramid's stuff is cheap, yes, but remember, you get what you pay for and that is quite true when dealing with this brand. If you think two Pyramid 12s sound great then you need to get out more and listen to other brands.
Either spend the extra money to get something decent, or search for a sweet deal on ebay.

 

personally, i would stay away from explods too. pm me and i could give u a name of a good brand thats pretty cheap, i have a single 12 in a ported box with 400 watts and it pounds pretty hard. most people quite supprised.

 

can anyone please explain to me when it says Frequency Response: 36.8Hz it will only respond to bass not mid range bass compared to Freq resp 30Hz to 3khz right?

 

I believe you are talking about resonant frequency of the sub not it's response.

 

Pyramid is crap, but laugh when I say this one but,
there Legacy (top models only) line up of amps are great for the money. And yes I am not kidding. I have had PPI, JL, Quart, Orion, Cadence, CLarion, Kenwood, Coustic, etc, in my car over the years, and have installed. My old Legacy LA-1000 hit my JL 10W1's hard as hell and sounded good doing it too.

 

I say a big thumbs down, that stuff sucks. Look into kicker comps, or somthing like that, maby Adire audio shivas.

 

bullhockey!

granted, pyramid stuff is FAR from what i would call quality, it can be made to sound good. ANY sub can be made to sound good. it is all about the enclosure you put the subs in. you can make a 50 sollar sub sound as good as a 200 dollar sub if you put it in the right box... some people don't have the $ to go buy high end equipment. hey, we all started out somewhere. once upon a time i had 2 jensen 10's years ago when i was like 16 i also used to think bandpass boxes sounded good. i've learned, and so will this kid. eventually he will move on to bigger and better stuff.

either go to pyramid's website, or look in the paperwork that came with the subs as to the manufacturere's recommended sealed box size. build a box EXACTLY to the specifications, be sure it is built solid, sturdy, and air tight. it won't sound all that bad. it will probably be huge, but you should have expected that when you bought 2 15's

if you have any questions, feel free to ask. that's what we're here for

 

Whatever man, Pyramid sucks period. If you want a decent low cost alternative get a Legacy as someone else stated. My buddy has 2 Legacy LA-1020's in his truck and they hit nicely with my old Orion NT 12's and my old Alpine head unit and processor. If you open up a Pyramid amp and look at the guts you'll laugh your ass off. They are only about a 3rd of the way filled with electronics the rest is wasted space and they are bigger to look like they are something they are'nt.

 

Whatever man, Pyramid sucks period.

If you open up a Pyramid amp and look at the guts you'll laugh your ass off. They are only about a 3rd of the way filled with electronics the rest is wasted space and they are bigger to look like they are something they are'nt.

first of all, we aren't talking about pyramid amps, we're talking about subs. secondly, i never disagreed with you that pyramid is crap, all i did say is that everybody has to start somewhere in the car audio world and gave a couple hints as to how he can make the best out of what he has.

try it sometime if you have some extra cash (50 bucks). buy some crap sub from somewhere, and mess with different enclosure sizes. you would be suprised at what you end up with sometimes... i had 2 rockford fosgate 10" punch Z series subs that came in this car when i bought it. (~45 bucks a piece) they hit REALLY hard. they hit pretty deep, and were *very* clean. i went up to the local audio shop and they hit 140.1. not absolutely great, but not too bad for a $100 investment on the part of whoever sold me my car granted, their enclosure literally took up my ENTIRE trunk (except for about 2 inches between the back of the hatch and the box) they sounded good. they were just too loud for me, and WAY too heavy so i sold them. anyways, my point is don't flame me when you don't fully read my post, as i never once disagreed with you.

 

Pyramid amps don't measure up, that's true enough.
But as far as subs go,
the BEST sub will only sound as good as the enclosure will allow!
the WORST sub in a properly built box will sound better than the best sub in a poor box!!
Its a FACT!
One of the best sub boxes I had ever built was using the Pyramid "super blues". These are probably the only Pyramid product I would actually recommend.
I used the super blue 12'S in a dual chamber ported box (1.7 cF/side w/30% fill, ported to 30hz) and ran it off of a 50WPC altec lansing ala552 amp and the bass was deep and chest-pounding.
I couldn't believe my ears!

Less than a week later, I left work to find my rear window smashed out and the box AND amp gone. I was mostly upset that some little scumbag now had some of my best work.
Fuck you little thieves. You suck.

Anyway, My point is research the speakers you chose and different box designs and match the box to the individual speaker you chose. Pre-fab boxes aren't always the best choice because they are built to accomadate a large # of different speakers-- if you want REAL quality, do your homework and build it yourself. You will never be disappointed.

 

Sorry, Faithless! I went off on a tangent...

Here's what I can tell you about your new speakers...

86db per watt-- this is VERY inefficient for a 15" driver.
what's this mean to you? It means you will need much more wattage to drive this to the same sound levels as a more efficient driver. You save $50 on speakers, and you now have to spend $200 more on amplification to make up for their poor efficiency!

Now this is GENERALLY SPEAKING! (I KNOW it is not ALWAYS fact, but it is true for most applications)
Box Designs--
SEALED BOX= most accurate sound overall, smallest physical size, Requires MORE AMP POWER.
PORTED BOX= more efficient over a specific range of frequency, requires a bit LESS power for the same spl as sealed, LARGER box size
BANDPASS (3rd order) Most efficient, but only in a narrow range. Laregest box. Pain in the ass to design and build.

To put your speakers in a sealed box, it would rob them of even more efficiency. You can't afford this.

To put them in a ported box, This would be my choice, seeing as the fs is 38, a good ported box could extend the deeper bass a bit more. Be prepared to lose every square inch of your hatch.

To put them in a bandpass box, this would require a pickup truck, and would take up half the bed! But, you could use a less expensive amp, and get good results.

Saving a little on speakers should not be a factor in designing your system. They are the most important link in the chain, and if you are going to spend a little extra on ANYTHING-- Spend it on your speakers.

And by the way, Bigger subs does not equal better!
properly set up 10's can sound every bit as good as 15's

If you could get rid of those 15's and get some good 12's or 10's, you could still kick ass while saving some space.

My 10's hit so low and solid, they make you have to PEE!
(2 boston acoustic rally series 10's in a sealed single chamber 2.6cu. ft box, 20 % fill, poewred by 200w rms/side)

 

I highly reccomend a pair of 10's for a DSM. You can really get away with one 10, if you are not a basshead. I good pair of 10's ($250) a custom no frills but good box ($100) and a effecient good amp $300. Should sound nice.

 

AGREED!!
2 tens are PLENTY if done correctly!
And with so many manufactuers concentrating on small, sealed designs, we can have some space for our toolboxes and whatnot!
Lots of very good tens nowadays only require .7 cf! and some, like JL claim even LESS THAN THAT!! .4 cf!!

Great bass AND trunk space!!

who'da thunk it?

 

My Audiomobile MASS 12's are in 1cubic foot per side sealed and they slam although I am pushing them with an Orion 2100HCCA pushing 800rms at 12v.

 

AudioMobile Evo's and Mass' are absolutly without question the best subs on the market, especially for the price. I had them in my competition vehical, and they are all I'd use. I would reccomend getting 1 10" or 12" and run it at 2 omhs, useing a descent 2ohm mono stable amp. I love MTX amps personally.

 

That's what I keep telling people but they don't believe because they have never heard them. They are AWESOME and indestructible period.

 

AudioMobile Evo's and Mass' are absolutly without question the best subs on the market, especially for the price. I had them in my competition vehical, and they are all I'd use. I would reccomend getting 1 10" or 12" and run it at 2 omhs, useing a descent 2ohm mono stable amp. I love MTX amps personally.

I myself have to admit I am not that familiar with the brand. How are they priced? I have always loved my JL's they would be tough to part with. Light, cheap and tight, just like my women

 

you can see them at www.audiomobileinc.com

The Evo is the cheapest, but they all sound amazing. One reason most of you haven't hear audio mobile is because they sell their own products, they don't sell to retailers, they are factory direct. They are absolutly amazing subs, I swear by them. I highly reccomend these subs by all means. This little 10" Evo for $169 will out pound any comparable setup you can come up with. I once ran 1800 RSM watts to a MASS 12", rate capable of 1200 rms watts, and it took all 1800 watts without trouble at all. It lasted until the car was wrecked (had it over 16 months) with 1800w going to it. And I wasn't conservative on my bass settings either...

Trust me here, there is just nothing like these subs.

I think one reason they don't do much advertising is because of people like me. I heard it from a friend, so I tried it, and wouldn't use anything else now. They practially sell themselves. Go to a competition around here and no one has them, afterwards everyone asks me about them, next comp, 12 of their cars had them...

 

Just curious what kind of amp you were using, since 1800 is a lot of power. Was it real power such as PPI, Orion, Phoenix Gold, Zapco?

 

You guys are crazy...My friend ordered the cheap Pyramid subs (2 12" 700w) and has a $79 pioneer 300w amp and its so hard. My other friend has 2 15" Kicker Comps (800w) with an MTX Amp and he can't even come close to the pyramid. So what if they're cheap...they have warranties and I think they're totally worth it. You don't need an $800 system. Go with Pyramid.

 

My friend has two 12s Pyramids the gold plated ones 2400watts and the 1600watt pyramid amp. He has them in a bandpass box and he broke his window hatch on his GS! So I dont know man.

 

the BEST sub will only sound as good as the enclosure will allow!
the WORST sub in a properly built box will sound better than the best sub in a poor box!!
Its a FACT!

thank you. at least SOMEBODY knows what they are talking about.

and the audiomobile subs are very good bang for the buck. i have heard them and was quite impressed, however i like the sq my jl provides. jl just has a certain "sound" that nobody else can quite do the same... clean, hits deep, and punchy. i love that punch in the back feeling they provide oh so well

 

My friend has two 12s Pyramids the gold plated ones 2400watts and the 1600watt pyramid amp. He has them in a bandpass box and he broke his window hatch on his GS! So I dont know man.

your friend should get a QUALITY 250 watt amp, and i do emphasize the word quality. once upon a time, many years ago i had a "1200 watt" pyramid amp. i tested it with a volt meter and found that bridged, it was pushing somewhere around 200 watts rms, and it had some crazy distortion. i later bought my first(of 3) mtx amp. it was a mtx 275x, rated at 150 watts bridged at 4 ohms. realistically, it put out 241 watts bridged at 4 ohms. much better than a 1200 watt amp putting out ~200 watts

point being, if they got a good amp, like a jl 250.1, mtx 2150x, or something similar they would really slam. you can make a cheap sub sound good, but there is no way to make a cheap amp put out more CLEAN power. and CLEAN is the most important part. the mtx i described earlier put out .007% THD bridged according to the test sheet that came with it. overpowering subs is not what causes blown subs, it is distortion that blows subs. also, i would slap them for having a bandpass box, but that's my opinion. i like things to sound GOOD and the loud, not the other way around, but i understand different strokes for different folks.