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Running 2 amps bass sounds out of phase. also doing weird things...


Amart88

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Posted

Just got my other BC3500 hooked up. Each amp is running 2 Zcon 18's.

I wired it up alone to test if it worked. It did. When I hooked them both up and turn up the bass, the notes get sort of out of phase sounding. Like chattering sound. instead of "boom boom" they go "boom boom...boom boom" I double checked everything. I know they both work. Also sounds like I am losing a great deal of output. The woofers are bareley moving.

I have them run seperatley at 1 ohm each. I may try them strapped.

The one 3500 alone at .5 worked fine on all 4 but now with both of them the bass is fucky.

Any thoughts?

Posted

Ok, will try that.

Don't think it will work but hey, you never know. Almost sounds as if one amp is putting out signal a tiny bit later than the other.

EDIT: they have a phase knob. between 0 and 180. Not a switch.

Posted

Oh- Crescendo BC3500s have a phase knob/dial. From 0-180. Make sure they are both set the same.

Assuming both amps are dialed in together- like 0 degrees on one is 0 degrees on the other.... That COULD be something crazy that you may have to dial them in to get them working together. Follow me? Like just b/c one is set on 0, that doesn't necessarily mean that the other one's 0 is the exact same phasing (though it should be).

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