Bought 2 RE audio 18 SX's....... and....

[Bassman999 10+ year member]

the proper way to set up the gains is as follows

1: turn the gain on the amp all the way down

2: turn the deck up slowly playing a song typical to what you usually play until it distorts then back down till it sounds clean again. That is the loudest the deck can go b4 distortion.

3: with the deck at the level we just established as the loudest clean signal slowly turn the amp up till it just starts to distort, then back down to under where the distortion started now you are done.

Remember speakers are very very inefficient. Over 80% of the power you put into the subs is turned into heat. Prolonged extremely high levels will eventually cause problems on even the best sub woofers. In other words playing it full blast for hours at a time is very hard on the whole system.

I love loud music, but I want my expensive stuff to las. So.... I listen to it loud no longer than a full song usually. Plus ears dont grow on trees and mine are damaged now.

 

[mazdakid 5,000+ posts]

the amp wouldnt turn on if there were no fuses inside, if there is an internal fuse.

 

[Bassman999 10+ year member]

What amp do you have again?

 

[Bassman999 10+ year member]

hifonics bxi2608?

That amp requires an external fuse. There are no fuses inside that amp. If that external fuse blows amp will not come on period. Did the installer install and external fuse to your amp?

 

[knowledgestick 10+ year member]

What amp do you have again?

hifonic brutus 2600d i think it is called, it is the 2600rms mono-block.

with the gain at anything under 12'oclock and the bass boost turned up the system is extremely quiet, it is very weird. i tested with the ohm metre like you said, i went and bought it and it comes up as .8-1ohm for both subs.

does this mean a voice coil is blown or that it is actually hooked up propperly?

they origonally said it was supose to be at 2ohms but it is not, and it doesnt look like the propper wire config for a 1ohm setup, unless u can have lots of differant types.

http://www.rockfordfosgate.com/rftech/woofer_wizard.asp?submitted=true&woofer_qty=2&woofer_imp=4

could the tiny 1 farad capacitor going to the amplifier be the cause ? should i get rid of this thing and run my amp from my kinetic 1800 upfront until i get the 2000 in the back ?

what is the loud setting on the deck ? they have always had that turned on low aswell.

P.S bassman you rule thanks alot for all your help man.

 

[audioholic 5,000+ posts]

There's a lot of China hate going on. I say a manufacturer can get quality out of China.An assembly line is only as good as the process put together by the engineering team and

the number of qualified engineers doing QA, training processes etc. When an American

company chooses a manufacturer in China, they have total control over what the company

in China is obligated to provide under contract. They tour the facilities, they can define the

processes.

A lot of times they go after price only, and we get what we get. I just happen to

think RE did not do that with the woofers they sell, even the ones made in China.

I got no proff though:laugh:

Im curious why the RE/US Amps representative has not come back to clarify his post implying they have no products made in China, and never have.

 

[mazdakid 5,000+ posts]

hifonic brutus 2600d i think it is called, it is the 2600rms mono-block.
with the gain at anything under 12'oclock and the bass boost turned up the system is extremely quiet, it is very weird. i tested with the ohm metre like you said, i went and bought it and it comes up as .8-1ohm for both subs.

does this mean a voice coil is blown or that it is actually hooked up propperly?

they origonally said it was supose to be at 2ohms but it is not, and it doesnt look like the propper wire config for a 1ohm setup, unless u can have lots of differant types.

http://www.rockfordfosgate.com/rftech/woofer_wizard.asp?submitted=true&woofer_qty=2&woofer_imp=4

could the tiny 1 farad capacitor going to the amplifier be the cause ? should i get rid of this thing and run my amp from my kinetic 1800 upfront until i get the 2000 in the back ?

what is the loud setting on the deck ? they have always had that turned on low aswell.

P.S bassman you rule thanks alot for all your help man.

turn loud from the head unit off, the bass on the head unit to 0, and the bass boost from the amp off. you are running the amp at 1 ohm, so youre getting more power than you thought. use your new meter to set the gain.

 

[Bassman999 10+ year member]

I thought you were running at 1 ohm. .8-1.0 ohm is telling us that all coils are in parallel. Capacitors are just a gimmick. Dont bother with it. Sell it.

loud on deck acts as another bass boost and treble boost as well. not needed in your case. Please make sure of polarity on subs. be sure one isnt hooked up reverse of the other one. subs out of phase wont make much sound till the volume gets loud.

 

[Bassman999 10+ year member]

its ok to use a lil bass boost, but dont use loud and bass on deck and bass boost at same time. And by lil boost i mean like 1/4 the way up, typically any more causes square waves (clipped signal-distortion) which causes lots of heat and damage to the amp and sub(s).

 

[Bassman999 10+ year member]

http://www.rockfordfosgate.com/rftech/woofer_wizard.asp?submitted=true&woofer_qty=2&woofer_imp=4

this is how you should be looking option number 1

 

[snfsh79077 10+ year member]

wow...I believe I called this? Just stop while your behind....

In all seriousness you need to have the proper setup and setting to run these subs. They are designed for a ported enclosure. Since they are in a sealed enclosure they are not getting the proper air to cool them down so they overheat. You are clipping the shit out of that amp which will also cause them to heat up faster. Do this properly and you won't have problems. End of story.

O and go to future shop and shit on their face..

 

[snoopdan 5,000+ posts]

Im curious why the RE/US Amps representative has not come back to clarify his post implying they have no products made in China, and never have.

You've got to face it my friend, we alone are the champions of truth in deez hurrr partz //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[knowledgestick 10+ year member]

I thought you were running at 1 ohm. .8-1.0 ohm is telling us that all coils are in parallel. Capacitors are just a gimmick. Dont bother with it. Sell it.loud on deck acts as another bass boost and treble boost as well. not needed in your case. Please make sure of polarity on subs. be sure one isnt hooked up reverse of the other one. subs out of phase wont make much sound till the volume gets loud.

yes, mine does not get very loud until it is up at high volume. I tuned the gain and the bass boost and have not experianced any overheating and i drove with them on, and the crack did NOT get any bigger.

it says "level" not gain on my amp, and at one end it says .2v i have to have to have it Almost turned all the way to .2v for it to preform deciantly aswell. But it sounds alot clearer now, and like i said after around 30 minutes of useage at fairly high volume the cones where not even warm to the touch.

The wiring on the subwoofers does not look like that diagram at all, it is wired up completely differantly each subwoofer has its own speaker-cable, and they go to the channels on the amp -- ++ and each speaker cable is bridged from a + to a - then goes to the woofer, connects to the - + then 2 small cables go around back and connect to the other connection points, the other subwoofer is setup the same.

Hopefully they did not hook the connection points up in reverse or somthing. But anyways the way mine is wired up does not match the diagram AT ALL but i am still reading 1ohm. Bassman you are great man i appreciate the help so much.

Do you think that if one of the internal fuses blew in the amplifier it would still turn on if say 3 of them where operating ? or is having to turn "level" all the way to .2v normal to match my head unit maybe ? also there is a setting on my head unit called "SRC lvl adjust" i turned this to 0 from +2 and it also removed ALOT of distortion, a combonation of the things i did have prevented them from overheating, but unless it is up at around 30-40 volume on the deck u dont really get the doors shaking and with 2600rms it should be alot louder IMO.

there isnt a dial on my amp that actually says "gain" just level, and then the bas eq is oviously bass boost.

level might be gain, just with differant wording. Anyways i hope what i have said above gives some tips and hints towards what could be the problem, could the amp just be severly underpowered since the amp is getting its power from the capacitor as it is the thing closest to the amp & is wired to the amp, not the battery ? would this be the reason the system is so quiet until it is turned up loud ? when they move they look like they move fine so i dont know if that is an indication if the polarity is propper, i am uploading a video now of me and my GF adjusting the settings, will post link ASAP.

Again, thanks bassman... amongst all the haters there is always somebody who wants to help //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Bassman999 10+ year member]

level is another word for gain

caps wont make it quiet, just doesnt help at all either

i still think it must be wired wrong if there is very little bass.

this amp does not contain any fuses inside, just a fuse should be run outside it from the positive power wire.

 

[knowledgestick 10+ year member]

level is another word for gaincaps wont make it quiet, just doesnt help at all either

i still think it must be wired wrong if there is very little bass.

this amp does not contain any fuses inside, just a fuse should be run outside it from the positive power wire.

Hmmm, perhaps they did not fuse it there ? anyways, the general manager of future shop is EXTREMELY pissed at them since i pointed out the fact of the sealed enclosure and they ignored it, they are basicly ready to make it right no matter what, and if they cant do it they are going to get a differant store in town to do it right, as in ported box, wired up propperly etc, and the installers will probably be fired for this.

Especially if the problems can be traced all the way back to the install of the amp origonally, When i had my MA audio subwoofers.

I have the right setting, and electrical for this system, i just didnt have the right box. I have to admit again, im not an expert and i asked my installer expecting an honest answer from him, when it came to whether the enclosure would damage the subs or just effect SQ. He made it sound optional and steered me towards keeping it sealed, i think when thease things are ported and hooked up and done right this system is going to absolutely pound.

The way the manager is handling it is very good since we have so much proof, And i cannot wait to see what comes of this. i said basicly all i wanted was my system to be done right the way i wanted it in the first place, and he said that they where going to do whatever it took to make that possible, and if they couldnt do it themselfs they will get someone else too.

So lets see if they stick to their word.

P.S new video comming up soon!