Type R coils burning!

[Blunt 10+ year member]

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7565839786&ssPageName=MERC_VIC_RSCC_Pr4_PcY_BIN_Stores_IT

man thats just what I need.

and since you seem to not know how to find gain setting tut here it is

car on h/u 3/4 way up (or loudest you usually turn it up and have all h/u settings set to how you usually have them) 50hz test tone on repeat sub unhooked hook dmm in its place at the amp. turn gain up till you reach required voltage

required voltage = sqrt(total watts*ohm load)

 

[406er 10+ year member]

i dont care to read the whole post so it may have been said. BUT, u have 5 Volt preouts, u should have your gain up at all maybe a 1/4 of the way up, i see that the sensitive of your amp is 7.5 volts to 150mV. your feedin a dirty singnal do your sub and realy heatin up your voice coil.

 

[BassBEAST88 10+ year member]

NOW my directed audio 1500D like 3 weeks old from ikesound it is under warranty and all! Was working fine but now if i turn it up to 25 on my cd player it will play fine go into prot mode then go back to normal is does the frequently! It will be playing fine the bass will quit for 5 secs then it will play fine then do it over and over if you turn it down it doesnt do it! WTF the gain and freq are both a little below a half i have 1 type r in a tcab box! WTF why does it keep going into prot mode all my connections are good i am getting plenty of juice????

 

[toaster 10+ year member]

youve got a voicecoil thats shorted, or fixing to burn thru completely.

either that, or one of your speaker wires is shorted together somewhere.

 

[406er 10+ year member]

well good luck with all that. when u find the problem set your gains with a DMM

 

[DBfan187 5,000+ posts]

no, oscope. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[slikrider20 10+ year member]

**** you sound like your 5, maybe if you proofread your sentences and took those **** exclamation marks off the end of your sentences people would wanna help you more.

 

[Spkrman]

NOW my directed audio 1500D like 3 weeks old from ikesound it is under warranty and all! Was working fine but now if i turn it up to 25 on my cd player it will play fine go into prot mode then go back to normal is does the frequently! It will be playing fine the bass will quit for 5 secs then it will play fine then do it over and over if you turn it down it doesnt do it! WTF the gain and freq are both a little below a half i have 1 type r in a tcab box! WTF why does it keep going into prot mode all my connections are good i am getting plenty of juice????

Sounds like low voltage protect. Run over ALL your connections, everywhere.

If anything was shorted, it wouldnt work period.

You don't set the gain to a certain level and call it a day. The gain is there to match the woofer level to the front speaker level. The idea isn't to set the gain somewhere and call it low, or high... it is to set it properly.

The gain setting tutorial works, an easier way is to just play some very bass heavy music... if the sub gets to a point and doesn't get any louder before the front speakers are at full volume, your gain is too high... and any volume past where it stops getting louder you are clipping. I'd suspect this is the case here.

 

[Spkrman]

thats the smell of SPL dust and hype LOL


try putting a multimeter to your amp and see what the actual wattage your running is.

You can't measure actual power with just a DMM.

In the end of this vid the process is somewhat shown... the vid isn't meant to be an amp benching tutorial, but you'll get the idea.

http://www.thecaraudiobox.com/eventpicsandvids/tcab1507one15.wmv

 

[toaster 10+ year member]

the gain is to set the hu preout matched to the input of the amp. has nothing to do with the front stage....

if you set your gain properly, and you cant hear your highs, you need more power on your highs.

if your gain is set right, your hu will just start to clip at the same time as your amplifier.

also, if you have a coil on your sub going out, it WILL exhibit this type of behavior. you could be slinging it out of the gap and shorting it, also.

a loose wire will do it, too.

 

[DBfan187 5,000+ posts]

the gain is to set the hu preout matched to the input of the amp. has nothing to do with the front stage....
if you set your gain properly, and you cant hear your highs, you need more power on your highs.

if your gain is set right, your hu will just start to clip at the same time as your amplifier.

also, if you have a coil on your sub going out, it WILL exhibit this type of behavior. you could be slinging it out of the gap and shorting it, also.

a loose wire will do it, too.

//content.invisioncic.com/y282845/emoticons/iagree.gif.15d6c075ee8d3913ba26866d06993068.gif

 

[Mr. Opportunist 10+ year member]

sounds like voltage drop to me....

 

[Chevyaudio 5,000+ posts]

the gain is to set the hu preout matched to the input of the amp. has nothing to do with the front stage....
if you set your gain properly, and you cant hear your highs, you need more power on your highs.

if your gain is set right, your hu will just start to clip at the same time as your amplifier.

also, if you have a coil on your sub going out, it WILL exhibit this type of behavior. you could be slinging it out of the gap and shorting it, also.

a loose wire will do it, too.

//content.invisioncic.com/y282845/emoticons/iagree.gif.15d6c075ee8d3913ba26866d06993068.gif

I wish we had more new members on the forum like you.

 

[toaster 10+ year member]

well, thank you

it's really no big deal, though. i enjoy it here and termpro, but there's always more posts and more going on here

 

[toaster 10+ year member]

sounds like voltage drop to me....

it very well could be, but here's the rip: his sub has been smelling burnt, and the setup has been fine for 3 weeks. he also says he is getting plenty of "juice." whether he is or not? debateable. if he is not all of the sudden, probably a loose wire. check your ground. you did ground it properly, i hope (scrape back to bare, shiny metal, use a silver star washer and silver screw to secure)?

do you have a multimeter? if so, ohm the coils of the sub out, ohm out reference ground to actual, check voltage at the amp terminals while its playing decently loud.

dont have a multimeter? go buy one right now @lowes or home depot or rshack. theyre cheap, and you can get to the bottom of things very quickly with it.