what would you pay...
- Thread starter car0linab0y
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LosIsATool
5,000+ posts
CarAudio.com Veteran
What voltage did you set the amp output to? Or did you Oscope it
The gain isnt a volume knob, you cant just crank it up 3/4 of the way and expect it to work fine. I am assuming you are clipping the hell out of the sub which is what makes the voice coil get hot. At the very least get a DMM and set the gains that way please. This sub is most likely NOT blown, but it will be soon if you keep running it like that. What head unit are you using?
LosIsATool
5,000+ posts
CarAudio.com Veteran
If he dont have the electrical to back up that amp he is really clipping it. Its starving for power
MisterDeadeye
10+ year member
Bannned
The price was for a recone and VCs.
Oh man! Thats one hell of a deal right there. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif
Stupid double post.
BlactimusCrime
10+ year member
NUT HUGGERS UNITE!!!
am i missing something? since when can you replace coils and not recone?
BlactimusCrime
10+ year member
NUT HUGGERS UNITE!!!
wow... tripple
BlactimusCrime
10+ year member
NUT HUGGERS UNITE!!!
ugh
I was kidding in my last post, and I am assuming(and hoping...) the dude I quoted was kidding also.
- Thread Starter
- #29
Don't remember, I just turned it to where it was the loudest.
School me on this method of gain setting... scope is pretty much out of the question. Sub isn't blown, but it's definitely not 100% anymore. The hole in the cone isn't making things any better either. Deck is a Kenwood Excelon. Not sure what model specifically, but I've had it since '05.
Got (had anyway) the electrical for it. Was running 250A alt, big 3, & two optima batts.
Buy or borrow a digital multimeter. You can get cheapo ones for like 15 bucks at Walmart. Unhook your sub from your amp and turn off ALL bass boost/EQ settings. Download a 50hz tone(google for one, I think ROE has one?). Turn your gain all the way down on the amp. Play the 50hz tone with your volume on your H/U at the loudest listening level you will use and on repeat with the DMM hooked up to your amps speaker terminals. The DMM should be on AC volts. Use this formula to find what kinda wattage your amp is putting out. Voltage = Square Root(Wattage desired X Resistance used) This means You have to multiply your desired wattage by whatever ohm load you want that wattage at, and find the square root of that number. After you do that, you will be turning up your gain until your DMM tells you that voltage while playing the test tone. I hope this makes some sense, lol. I have had a few drinks and probably left something out.
EDIT: I will simplify this a bit for you. What kinda power are you trying to get from your amp? They are rated at 1200 RMS right? I will just use that. What you have to do to find what voltage you want on the DMM is multiply that 1200w by the resistance you will be at(1 ohm, because a dual 2 ohm sub wired in parallel is 1 ohm) So you multiply 1200 by 1 and get 1200 obviously. Now you have to find the square root of 1200 which is around 34.6. Hook up your DMM like I said above and raise the gain til the DMM says about 34.5 volts roughly. That is a more proper way of setting your amp, although it isnt always the best way.
EDIT: I will simplify this a bit for you. What kinda power are you trying to get from your amp? They are rated at 1200 RMS right? I will just use that. What you have to do to find what voltage you want on the DMM is multiply that 1200w by the resistance you will be at(1 ohm, because a dual 2 ohm sub wired in parallel is 1 ohm) So you multiply 1200 by 1 and get 1200 obviously. Now you have to find the square root of 1200 which is around 34.6. Hook up your DMM like I said above and raise the gain til the DMM says about 34.5 volts roughly. That is a more proper way of setting your amp, although it isnt always the best way.
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