Question about Xtant A3001 Car Audio Amplifier
Running two 12 Lanxar DVC's in enclosed box. 4000 watt 286 VIBE amp. 2 ohm stable. Had voice coils bridged and amp bridged. Thinking this is 1 ohm load.? After losing one sub, removed subwoofers bridged on amp and ran as stereo. Switched 10 gauge wire, one sub plays with same wire, the other doesn't. I hear the scratching noise if I run the speaker wire over the terminal but nothing else. Sub doesn't even sound blown.
Left fuse was blown. Replaced. Same problem. Only thing I haven't done is replace the 60 amp fuse under the hood.
The other subwoofer works fine off the same channel as the one that didn't. Verified channels are fine. What else can I check?
I'm not understanding what you mean by the "Sub doesn't even sound blown" if it doesn't play at all. One thing you can check is if you gently push in on the cone you shouldn't hear anything, if you hear a scratching noise and can feel resistance then you have a problem. If you have an OHM meter, you can check the voice coil impedance, it is a down and dirty way of checking to see if it is good or not. Measure all of the voice coils that you have and they should all read about the same, not necessarily exactly the same but pretty close. This test should tell you a lot. If it seems to test out fine there is something wrong else where. Let me know if you need more help.
Posted on Apr 03, 2008
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