speaker cancellation/cuts in and out near high volume

[NZBasshead]

ive got 2 subs running in a ported box and 1 of the subs cuts in or out for a few milliseconds when its near it highest volume and at a certain freq near and around 45-55 any ideas why? there in phase correctly and connected right there not in separate chambers also at times it does look like there out of phase when one moves up the other looks like its moving it but it only happens as i said around 45-55hz in songs any ideas?

[WastedTalent]

Power? Are they gettin the right power? I had that problem before with my tweets and turned out a bad amp or whatnot. Fixed that problem and it all started workin fine. And only did it on high volume.

[NZBasshead]

Power? Are they gettin the right power? I had that problem before with my tweets and turned out a bad amp or whatnot. Fixed that problem and it all started workin fine. And only did it on high volume.

i just went through the net and i think one of them is receiving to much power i think it may be bottoming out im not to sure an opinions? there running on of 4 amps all the same bridged at 1 ohm i might turn the gain down on the one that seems to be cutting out or swap the sub out with my spare

[Noel989]

Power? Are they gettin the right power? I had that problem before with my tweets and turned out a bad amp or whatnot. Fixed that problem and it all started workin fine. And only did it on high volume.

i just went through the net and i think one of them is receiving to much power i think it may be bottoming out im not to sure an opinions? there running on of 4 amps all the same bridged at 1 ohm i might turn the gain down on the one that seems to be cutting out or swap the sub out with my spare

Are all 4 amps for your bass? If they are, how did you set your gains? Did you gain match? Just cause their at the same direction doesnt mean their putting out the same output

[White Lightning]

you have 4 amps linked together (2 amps on one sub) or one amp per voice coil ???

[CleanSierra]

Is one sub potentially loading off of the port? For example, an L-port that is BEHIND one sub could cause it to act differently than the sub that doesn't have its rear wave firing at the inside L of the port.

[NZBasshead]

the ports in the middle of the box and i didnt match the gains :/ i just set m up with the dd-1 at -5 db i just turned both gains down for now so 1 doesnt cut in and out each sub is running of 2 amps linked the subs rated at 1800rms (5400max) each and here i m pushing 7000rms into each of them so i think the other 1 might just be bottoming out

[Kinser]

You would need a cc-1 to do the gain matching. Set all four amps gains with the dd-1, and then use fist amp as refrence for matching up the other amps with the cc-1

[NZBasshead]

im thinking to just turn the gain down to the point where the 1 sub no longer stops cutting in and out

[Jessica]

Just gain match using a DMM. Set you gains first with your dd-1 like you did, then find the amp that is putting out the least voltage and match the others to it.