Locked up sub?! - Page 2

pimprolla112 · #16 05-05-2006, 02:57 PM

First off either the PA amp is rated completely wrong, thery are using the wrong power reading for marketing use or your not reading the right ones. Only reason i say this is because going from 4 ohm to 2 ohm will give you 1 and half times the power at 2 ohms so if you have 300 it goes to 450. Most of the time. If you want something decent that isnt top end but isnt complete shit go on ebay and get a set of infinity kappa perfect 12.dvc. Another choice get a set of alpine type-r's. I will agree something is better than nothing but nothing is better than something that sounds like someone farting into a microphone

CBFryman · #17 05-05-2006, 03:02 PM

ummm, no, on an unregulated amp, voltage rail being the limiting factor, going from 2 to 4ohm will double power. Ir 300wrms to 600w rms. In a regualted amp or an amp where the power supply is the limiting factor it depends completely on the circutry.

JunkTitleGolf · #18 05-06-2006, 12:46 AM

At 4 ohms I am running at 370x2 and at 2 ohms it's 440x2. I took the second blown dub sub, blew another, back to walmart got cash back and monday I am going to H.H. Gregg. Our's offer's financing so I will be able to get something a little more high end because I will be able to pay it off over time. I am thinking about some MTX's. I have a friend with 2 in the bed of his S10. No cutout and you can feel the bass inside the truck. So I am going to look at getting some of those.

RickwithaTbird · #19 05-07-2006, 02:08 AM

don't buy things you can't afford. And if you're gonna buy from wal mart, get the lightning audio 12's. I had them hooked up to 144w rms each, between blowing my audiobahns and buying my type r's. They were impressive.

JunkTitleGolf · #20 05-07-2006, 09:08 AM

Quote:

Originally Posted by RickwithaTbird

don't buy things you can't afford. And if you're gonna buy from wal mart, get the lightning audio 12's. I had them hooked up to 144w rms each, between blowing my audiobahns and buying my type r's. They were impressive.

I'm pushing between 370 and 440 watts rms. I think that's over the lightning audios max power. Anyways, I am hoping Best Buy offers financing. They carry Alpine Type R's. I was actually considering those or at circuit city that mtx vented enclosure combo. I would much rather get just the subs though cause I already have a box. And last night I was looking up the specs for the r's and it's what I need. I figured out about what financing would be for 12 months at 15% interest for 300 it'll be about 30 a month.

alphalanos · #21 05-07-2006, 09:12 AM

Dude if you need to finance subs, its probably not a good idea. I always pay cash for everything, so I never have debt. I think you should just get one sub. You could always get one now then if you want more get the other later.

JunkTitleGolf · #22 05-07-2006, 09:18 AM

Well, I am just turning 18 and need to build my credit. This is like a really easy way to do it to for me. I was wanting to take out like a 2,000 or 3,000 loan to build my credit. I was going with 2,000 for car audio and 3,000 for a supercharger. Sadly, I haven't done either one...

pimprolla112 · #23 05-07-2006, 10:54 AM

To fryman yeah i know i was referring to more along the lines of low to mid grade amps ie profile. Even if thats the case that amp is rated wrong at some point, like the RF amps at best buy says 600 on the damn amp look at the power rating its usually 50x2 and 150 bridged, (man its fun to fuck with the guys in there).

JTG you know there is a pot on the amp that says power output, you can turn it to make it put out less power. And i have friends younger than me in debt so bad its not right, one has about 22k, another has 15k, i might be about 1500 in debt but thats from owing money to friends for shit ie 2 engines and a set of wheels. Look on ebay for type r's it will drop the price alot. One question is it a prefab box or custom, unless the box is decent then you would be wasting your money to get better subs and put them in a shitty box.

JunkTitleGolf · #24 05-08-2006, 12:04 AM

It's a custom. I used bassbox pro to make it. I went to H.H. Gregg today and they "sold" me infinity's. The reason why I say "sold" is I paid for them they brought them out to me and I looked at the box and it said 300 rms. They told me 500 rms. So I told them to take them back and to change their price flyer for them. Tomorrow I am going to this place called smart shoppers in louisville ky. They sell car audio stuff at great prices. The way they work is they sell whatever it is for retail plus 15%. That way you don't pay the extra mark ups like you do at best buy and other places. I'm probably looking for Alpine Type R's or maybe MTX. Yeah I knew about the gain setting on amps. Hopefully you was talking about that.

NAVY IC · #25 05-08-2006, 12:33 AM

This is in response to your question about calculating watts with a multimeter....
It's actually a really simple formula...

Power (P) - measured in watts
is equal to Voltage (E)
multiplied by Amps (I)
or in other words P = I x E

Because of he dynamic nature of music, you can only get an average of
prevailing conditions, ie. volume, settings, type of music, etc.

pimprolla112 · #26 05-08-2006, 03:20 PM

Retail +15% that sounds like a rip off maybe wholesale+15%. Retail is what everyone is supposed to sell the item for.

JunkTitleGolf · #27 05-08-2006, 11:14 PM

Yeah today I was thinking about what I posted and that's what I meant to say. I didn't get much sleep when I posted that.

PaulD · #28 05-09-2006, 01:54 AM

Quote:

Originally Posted by NAVY IC

This is in response to your question about calculating watts with a multimeter....
It's actually a really simple formula...

Power (P) - measured in watts
is equal to Voltage (E)
multiplied by Amps (I)
or in other words P = I x E

Because of he dynamic nature of music, you can only get an average of
prevailing conditions, ie. volume, settings, type of music, etc.

That formula isn't gonna help you much ... you will be trying to read 2 variables at once, you will need 2 meters hooked up at the same time for that.

bjboertje · #29 05-09-2006, 12:48 PM

i wouldn't say the lightnings are impressive. they are holding up for me, so far, but they sound like crap.

bjboertje · #30 05-09-2006, 12:52 PM

Quote:

Originally Posted by JunkTitleGolf

I'm pushing between 370 and 440 watts rms. I think that's over the lightning audios max power. Anyways, I am hoping Best Buy offers financing. They carry Alpine Type R's. I was actually considering those or at circuit city that mtx vented enclosure combo. I would much rather get just the subs though cause I already have a box. And last night I was looking up the specs for the r's and it's what I need. I figured out about what financing would be for 12 months at 15% interest for 300 it'll be about 30 a month.

the lightings are 150rms/750peak. prolly overrated on the peak side, but i am running around 250 rms to mine. (not saying they are good, just holding the power)

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