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NighthawkFG

BL making a scratchy noise

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My BL just stared making the noise yesterday, the sub is hooked up to a MTX TA81001. The gain is set at little over half. I really hope the voice coil is not going out.

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Gain is half way? What does this mean? Did you listen for stress when setting the gain?

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Was there a new song that was played? Might of had a lot of distortion.

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Ok checked the voice coils they read 1.6 ohms and its a 2 ohm DVC. Only problem is dont remember what they read when I got them.

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Thats normal for that coil.

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Ok with that confirmed, I'm thinking it maybe my amp. Luckily I have another one to see if my theory is correct.

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Does it make the noise if you just push down on the cone?

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The 1.6 ohms is the Direct Current Resistance (DCR), the impedance is 2 ohms.

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Okay.

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