Legacy amp couldnt handle audiobahn 10"

[Machspeed]

I had my audiobahn 10" sub hooked up to my legacy amp. For some reason the amp kept going out. We looked on the amp and the protect light kept comming on. The amp was so hot you couldnt touch it. Turns out the sub was drawing way too much power from the amp. We hooked the amp up to two 10s and it worked fine. But this audiobahn was pulling 1000w rms and it was being amped another 250 watts. (2 ohm load) So im in the process of searching for a new amp and i think i found one. The Rockford fosgate punch 500s. 250x2@2 ohms rms. That will fully amp the sub. https://www.onlinecarstereo.com/caraudio/product.asp?sku=12470 Its on sale! Im planning to get some 6x9s to go under the 6x8s. Right now the legacy is hooked up to my pioneer 6x8s and they are SCREAMING!!! They sound so awsome. I think i wanna hook that amp up to the 6x9s i get and im also looking at this crunch 4 channel amp for all other speakers. Its 4x100 rms i think. (4 ohm) Should sound pretty sweet. But for now my audiobahn is sleeping. When it was working, i didnt even turn it up halfway and it was DUMPING! So the fosgate should work nicley.

<small>[ November 30, 2002, 09:17 PM: Message edited by: FOR SHO ]</small>

 

[RI-SHO]

Let me see if I read this right, both 10" subs were pulling 1000rms and your buying one 500rms amp to push them?

Shouldnt you invest in something a little more powerful?

 

[Machspeed]

No, i was using one legacy for one 10" sub. But i think im going to order another 10 and i kinda want a rockford fosgate 1000bd.

 

[Ian Macoomb]

The subs don't draw power, they only accept it. If the subs are rated at 1000 watts it doesn't mean that the amp was getting taxed for 1000 watts. The amplifier drives the sub. It sounds like the amplifier wasn't rated to drive a 2 ohm load. Did you have it bridged to a 2 ohm sub? If you did, that's probably the problem. The amp can probably only handle a 4 ohm load when bridged.

If I were you I'd save my money for the big Rockford amp (BD1000). Legacy, Crunch and other cheaper brands are cheaper for a reason. They don't put out rated power and they won't last. And read the owner's manual, if the amp doesn't specify that it can handle a 2 ohm load, then don't do it. Running the amp at a lower load level will cause it to burn up eventually.

 

[underdog1924]

Might I suggest a JBL 1200.1. It runs at about 1350 watts rms @ 2 ohms and is quite inexpensive. Etronics.com has them the cheapest I've seen and Sounddomain.com will price match it 105%. It's a very good amp that is stable at 4, 2, and 1 ohm.

 

[NiNeTy Fo SHO]

I have a crunch 1000....and it makes my 2-12" cerwin vega's jump like no other. Had it for about 4 years or so, and have not had a problem with it. It is 1 ohm stable, but I run it at 2 ohms....I push it hard a lot and have no problems... thumbs_u

 

[Trojan Man]

I can also highly recommend the JBL 1200.1, as I have one in my car. They have been benched to put out anywhere between 1300 and 1400w REAL watts into a 2ohm or 1ohm load. I have it pushing my DD9515 ( www.ddaudio.com ) and I'm gonna put another JBL to it soon.

<small>[ December 01, 2002, 12:57 PM: Message edited by: HydroStream6 ]</small>

 

[yamahaSHO]

I must recommend the JBL BP1200.1 as well. I used to have 2 of them. Here is the system I had in my 89 camry.

 

[SHOZ123]

yamahaSHO

how much does a system like that weigh cables and all?

 

[Machspeed]

the amp is 2 ohm stereo stable...i really want that fosgate!

 

[yamahaSHO]

WOW, that thing wieghed a lot. The box itself has to weigh at least 65lbs, at least. I used 4 gauge cable all the way back. My guess with everything included, at least 100lbs. I still have the subs in the box, maybe I should weigh it. I am currently trying to sell it, I don't want anything that heavy in the SHO. Plus, It was too much bass. With the 1200 watts rms amp I had the gain control turned all the way down, and it was still enough to hurt your throat.

 

[RI-SHO]

Should be more than that .

My 2 12's in custom box weigh at least 70lbs and my 2 "older" 225-250HCCA Orion amps arent much but the board there on is very sold/heavy wood.

I like that setup you had, you were smart you had the cap. to help out, I need one bad when i'm pumping my stereo at its max.

 

[thebigjimsho]

RI-SHO:

I like that setup you had, you were smart you had the cap. to help out, I need one bad when i'm pumping my stereo at its max.

?????? You have that setup with no cap???????

I feel so bad, I almost feel like buying you one. boink

 

[underdog1924]

RI-SHO

I like that setup you had, you were smart you had the cap. to help out, I need one bad when i'm pumping my stereo at its max.

Edien, a cap isn't going to help you out much. Your electrical system can't keep up with the power your amps draw. Caps in my opinion are worthless, more of a band aid for something more serious. A better fix would be to get a high output alternator or a second battery. Check out the forum in my link, they are very helpful and there is actually a thread going on there about this same problem.

 

[Chris Benvie]

underdog1924- I reccomend a cap to all my customers, i added one to my car and it made a world of difference, Edien (RISHO)is right he should get one. If you buy a stinger or a PG cap then its worth it, the lightning caps are junk.

FOr SHO- i would def. reccomend a MA audio synergy high current amp, 1000x1 at 1ohm, its hurts your chest to listen to it hit 1 Orion HCCA 12" trust me I know wink I had a Legacy amp once and had it rated, it said 1600w on it, i was rated at 450w pretty pathetic, same thing with the sony amps, they say 760w but are only 250w at 2 ohms

I have a wide array of large amplifiers including the Orion HCCA amplifiers and the MA audio amplifiers, if you are interested in one, contact me with a PM off of the Forum

 

[thebigjimsho]

underdog1924:
Edien, a cap isn't going to help you out much. Your electrical system can't keep up with the power your amps draw. Caps in my opinion are worthless, more of a band aid for something more serious. A better fix would be to get a high output alternator or a second battery. Check out the forum in my link, they are very helpful and there is actually a thread going on there about this same problem.

I don't understand the reasoning to this comment. In normal operating modes and even at high volumes, your cars alternator will have no problem keeping up. Unless you add more amps driving more subs, it shouldn't be an issue. The cap gives you a consistent, steady power reserve. That fix would be much cheaper than a new alternator and easier to install than a second battery. boink

<small>[ December 03, 2002, 11:33 PM: Message edited by: thebigjimsho ]</small>

 

[yamahaSHO]

underdog1924:

RI-SHO

I like that setup you had, you were smart you had the cap. to help out, I need one bad when i'm pumping my stereo at its max.

Edien, a cap isn't going to help you out much. Your electrical system can't keep up with the power your amps draw. Caps in my opinion are worthless, more of a band aid for something more serious. A better fix would be to get a high output alternator or a second battery. Check out the forum in my link, they are very helpful and there is actually a thread going on there about this same problem.

Believe me, caps work. Made a HUGE difference in my setup. 1200watts rms to Vega 12s(400rms,800peak each), it needed it.

 

[RI-SHO]

Guys thats why I have both amps at half gain , at full gain both its just too much with no cap.

A cap has always made a difference in all of my setups in my old cars. And I went through many setups with that car its what put me in a $22,000 debt(collected debt from 17-20yrs old; paid about 2yrs ago) just for stereo setups that I kept changing every 3mths. With the SHO I learned to spend my stereo money elsehwere or I have been kind of forced to anyways with the SHO breaking down or needing many repairs.

The above setup is basically the remains of the last setup on my last car except stripped of the fiberglass/plexiglass eye candy and into a basic box and board for the amps. Only cap I have considered for now is the digital Lanzer but that'll set me back about $600 (if you havent noticed yet, I like to have the current top of the line product when ever possible), but SHO needs a bit more work before I can do this for my stereo.

<small>[ December 04, 2002, 12:03 AM: Message edited by: RI-SHO ]</small>

 

[underdog1924]

My reasoning behind not using a cap.

http://renegadesrun.hyperboards2.com/index.cgi?action=display&board=head&num=1038210803&start=0

 

[Machspeed]

My SHO has developed some problems so i dont think ill be getting 2 10s. But now i need an amp to power the one. Im looking at the jbl 600.1 which i can get for like 150 or so. 600x1@2ohms. Ill turn the gain down a little.