Originally Posted by Arch1Bass
Looking for insight on whether a cabinet can resonate in such away that the volume level of a particular note decreases in relation to all other notes.
I am presently trying out a GK MB210-II. What I have noticed in my testing of the GK is that when I play the "D" on the A string I seem to lose clarity of tone and volume punch compared to the surrounding notes. Is this a cabinet issue as I don't hear this difference in my present GenzBenz Intro 50 which has a 12" speaker.
There are several possible causes for a cab to drop a note in volume relative to the notes around it.
It could be cancellation from either an internal resonance or a panel resonance that is out-of-phase with the cone.
It could be related to energy in that region that comes through the port out-of-phase.
It could originate in the speaker cone itself, or even the speaker surround. At certain frequencies the physical vibration of the cone is reflected back into the cone by the surround, but out-of-phase, so that we have a dip. If you know what to look for, you can usually find this dip in the published frequency response curve.
It could originate from a reflection off of nearby room boundaries, possibly the floor. You could try raising the cab up off the floor maybe a foot or so and see if that has any effect.
It could be that the woofer isn't mounted tightly to the front baffle, and that's the frequency where the woofer's frame is feely moving (resonating) out-of-phase with the cone.
It could be a crossover issue.
It could be something else that I haven't thought of.
Sorry this probably doesn't help much. Hopefully someone who has experience with this cab will chime in.