blew my HD315

[jnralp00 10+ year member]

The bass remotes that come with them ****... Unplug it and you will see a difference without touching the gains. (you need to back off your gains). Did you get my last pm 95?

 

[cha0 10+ year member]

shit page 3...

lets see, as stated in the first post the Amp WAS set with a DMM.

This IS the sub i was trying to sell in the BST thread untill last sundays little insadent.

When i put it back to 4 Ohms i did use a DMM again.

i got my buddys DMM again and checked the couls and one wont read. so im assuming that means its blown.

the box was built to DJs specs. not blamming him. it had to have just been a freak accident.

 

[joetama 5,000+ posts]

Recone time... That is all....

 

[cha0 10+ year member]

yea, i may just try selling it blown now. i really dont want to mess with shipping this back and forth to AQ...

 

[joetama 5,000+ posts]

You could just recone it yourself if they will send you a recone... //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

It's really not that hard, a trained monkey could probably do a decent job doing it....

 

[cha0 10+ year member]

what is involved with changing a voice coil?

 

[joetama 5,000+ posts]

Well, usually the company sends you a cone assembly with everything you need...

There is a recone thread just search for it... ngsm13 posted it...

 

[cha0 10+ year member]

sweet, thanks man

 

[joetama 5,000+ posts]

Pretty simple.... If you can get a recone from them follow the steps including taping the dust cap to your head so you can be like Rabbi B&W_EE... //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[jmanjr]

If you dont want to mess with a recone, I would buy it blown, it would help me in my quest of having a pair of 10s for sb1

 

[cha0 10+ year member]

well i would really like to put 2 of these in my car so im going to see what DJ says.

 

[jmanjr]

Its 130$ for the recone plus shipping to and from Dj so lets say 200$ shipped/fixed.

 

[Jeremiah25 10+ year member]

shit page 3...
lets see, as stated in the first post the Amp WAS set with a DMM.

This IS the sub i was trying to sell in the BST thread untill last sundays little insadent.

When i put it back to 4 Ohms i did use a DMM again.

i got my buddys DMM again and checked the couls and one wont read. so im assuming that means its blown.

the box was built to DJs specs. not blamming him. it had to have just been a freak accident.

So let me ask you some questions. You are claiming to have set the gain with a DMM, but how exactly did you do that? Do you somehow magically know the output voltage where the amp starts to clip at every frequency without knowing the reactive impedance, and the exact power output capabilities of the amplifier at a reasonable percentage of distortion at each reactive impedance? I'm haveing a hard time figureing out how you could possibly set the gain properly with a DMM without knowing the said information, and I'm quite confident that you don't know the said information. If you do...................I need to borrow your crystal ball.

I'm not trying to be an *** here, but you failed at setting the gains properly. Next time try using an oscilloscope instead of a DMM. The only reason you should use a DMM for setting the gains is to gain match multiple amplifiers, because a DMM does not tell you when the amp is clipping. It will simply tell you the highest possible voltage the amp will put out at whatever frequency you are playing and reactive impedance at that frequency, but it does not tell you how distorted or clipped that voltage is. If you are running the amp at the highest possible voltage that it can put out, you have reached full clipping on the amplifier. An oscilloscope is the only way to see the output wave form to ensure the output is not too distorted.

 

[cha0 10+ year member]

my mistake, im interchanging "DMM" with voltmeter. i set this sub with a volt meter. sorry for the confusion. but i dont listen to my music very loud. and the gain was set about half a turn. i really dont know how it could have clipped. not to mention bass boost was off.

 

[jmanjr]

An that about sums it up, DJ is a great guy man he is always willing to help, but we have basically summed up what happened here you clipped the sub beyond its limits and now have a blown sub, next thing to do is get it repaired or sold.