Beginner needing help - Sub is blowing out

[vallejoarmy]

Hello everyone,

I have a couple questions and needing help with my stereo system. I have an all pioneer system. Here are my parts:

Speaker Amplifier: GM-6300F

Subwoofer Amplifier: GM-D7400M

Subwoofer: TS-SW301

Head Unit: AVH-P4000DVD

Speakers: 6-3/4" TS-A702C, 6x9 TS-A9702C

My subwoofer has been blown out and I bought another one and it was blown out again. I believe it may be my settings. I went to Best Buy and asked a couple questions and they said it may be the RMS settings on my amplifier, however I do not know what that means and I don't know how to change them. I did some more research and it seems that the RMS on my subwoofer is 200 watts and on my amplifier at 4 ohms is 250 watts x 1 channel and at 2 ohms is 400 watts x 1 channel. I also do not know what 4 ohms, 2 ohms means or channels mean nor how to adjust them on the actual amplifier. I have attached pictures of my two amplifiers where the settings are shown so that it may possible be easily pointed out what I need to adjust to keep this from happening again. The first is of my subwoofer amplifier and the second is of my speaker amplifier. Any help is greatly appreciated.

View attachment 26542662View attachment 26542663

Click to read more...

 

[Fattony911 10+ year member]

where is your gain set at on your amp? It deff. sounds as though you may have it turned up a little too high. Try one of two things either turn your gain down and see if you're satisfied with the results or maybe look into a sub with a little more power handling. Gl

 

[vallejoarmy]

where is your gain set at on your amp? It deff. sounds as though you may have it turned up a little too high. Try one of two things either turn your gain down and see if you're satisfied with the results or maybe look into a sub with a little more power handling. Gl

Thank you. To be clear, I should turn down (to the left) the gain on the amplifier connected to my subwoofer, correct? If I do that, what exactly am I decreasing? RMS? Ohmns? Thank you.

 

[Fattony911 10+ year member]

Yes to the left. You're decreasing the amount of power going to the sub. This should give you a little more leeway to tun up ad down with your head unit without blowing. If you dont trust yourself take your car to a reputable car audio shop in town and ask them for some help

 

[Foulplay]

Buy a cheap multi meter. Your sub should be wired to 2ohms. For 200 watts you should see 20 volts on the speaker terminals on your amp. First unhook your sub from the amp. I downloaded a 50 hertz test tone and put it on my usb. Turn your radio up to your normal MAX level play the tone. Set the gain so you have 20 volts. Hook sub up and you should be in the ballpark.

 

[vallejoarmy]

Yes to the left. You're decreasing the amount of power going to the sub. This should give you a little more leeway to tun up ad down with your head unit without blowing. If you dont trust yourself take your car to a reputable car audio shop in town and ask them for some help

Great, thank you for the help. I will definitely use your advice.

Buy a cheap multi meter. Your sub should be wired to 2ohms. For 200 watts you should see 20 volts on the speaker terminals on your amp. First unhook your sub from the amp. I downloaded a 50 hertz test tone and put it on my usb. Turn your radio up to your normal MAX level play the tone. Set the gain so you have 20 volts. Hook sub up and you should be in the ballpark.

Sure thing. I'll try this as well. Thanks.