Blown sub and picking replacement

[jerrod75110]

Need your help! I installed a alpine mrv-500 rms amp with a single type S sub, a few hours later it started rattling. took it out and looks like a ball of copper wire under the magnet..what went wrong?

now what should i replace it with?

08 crew cab GMC

single 12in box .96 air 6 1/2 depth

alpine 500 rms @ 2omhs

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[jrdnhsnbrg 10+ year member]

What was your volume at? What method did you use to set the gains on your amp?

 

[jerrod75110]

most the volume was up is halfway. I had not set the gain yet, it was at factory setting which I think was halfway. thought it would be safe to run untill i had more time to adjust it.

 

[mylows10 5,000+ posts]

too much power for the type s .better sub is needed

 

[jerrod75110]

So what would be a replace for my combo? Thanks for the help

 

[Wasatch 10+ year member]

I believe I have the same Sub-Amp as you, I just finally purchased a Sundown SA-10 DVC 4 Ohm. Quite a few people on this forum a year or two ago recommended this sub for me, so finally I'm getting one. Looking forward to hearing it.

 

[jerrod75110]

I just ordered a sundown sd-2 4 ohm. We shall see how it sounds in a few days!

 

[basswiigee]

SA or OA... both would be great

 

[Jeffdachef 5,000+ posts]

most the volume was up is halfway. I had not set the gain yet, it was at factory setting which I think was halfway. thought it would be safe to run untill i had more time to adjust it.

might want to rent out an oscilloscope and set the gains and head unit correctly.

here's a general guide line

For the Head unit LPF to 80, sub level close to max, Bass/bass boost at 0, Equalization at flat

For the amp, have LPF at 80, subsonic filter at 20-30, bass boost all the way down

you should check out whats the highest volume your head unit can go up to without distorting/clipping on the oscope then use a 50 hz test tone to set amp gains make sure its clean on oscilloscope. I dont see why a 500 rms alpine type S would blow from its rated power without some heavy clipping issues. I would make sure you set things right before throwing that Sundown in with the same settings. They are tough subs but any sub is susceptible to clipping.

 

[jerrod75110]

Thanks for the tips jeffdachef. I really think the sub I got was bad out of the box. I turn it up half way and let it distort for maybe ten seconds. I'm going to make sure I get the amp set right with this speaker before I crank it. Lol

 

[jerrod75110]

The truck has the factory head unit

 

[Side Show 10+ year member]

research more befor you go out and buy another sub, or you will end up cooking the new sub too. amps don't come (pre-set) from the factory.

 

[jerrod75110]

When I adjust the amp where does the rux knob need to be set ? Max?

 

[Jeffdachef 5,000+ posts]

When I adjust the amp where does the rux knob need to be set ? Max?

i would disconnect that, try not to use it all all if possible.

 

[Side Show 10+ year member]

^^ don't use the knob!