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They have an effect down to the frequency where the total length of the horn plus the plate equals 1/4 wavelength. Horn length determines how low the horn loading extends, mouth area determines how low flat response extends. I guess cornerloading in room theoreticaly needs the same 1/4th wavelength...

Sorry to revive this, but rather this than start a new topic.

Coupling plates and 'fake corners' only have an effect if they become long enough right? 1/2 wavelength? Or? And how does the mouth area come into effect?

Calculating max spl ...forgets that 3000w into a voice coil heats it up fast and then its dc resistance drastically increases (power compression, you don't keep getting a 3db increase for every doubling of power once it starts to get hot, there comes a point where you double power and you get no in...

[] Yes, no way I can create a long enough horn. Thanks in any case, we will just do stack on one side. It's just a couple of rented subs, and I just wanted to be sure I was correct in assuming it wouldnt work with a reflex sub. Our mainstage uses 6x "dB Technologies DVA S30 Bassreflex-horn sub...

[] Yes, no way I can create a long enough horn. Thanks in any case, we will just do stack on one side. It's just a couple of rented subs, and I just wanted to be sure I was correct in assuming it wouldnt work with a reflex sub. Our mainstage uses 6x "dB Technologies DVA S30 Bassreflex-horn subw...

Yeah, coupling them is logically a thing, but as it wasn't specified further I was "hoping" the hornloading with a plate would help. As you're saying, it would expand the horn mouth area, but as there is no horn to start with I think you're right in thinking the horn you create with the pl...

Free10.jpg Hey I just read through the subwoofer placement post, and found it really helpful. I did wonder if all horn couple plates are applicable to regular subs with sealed/vented configurations. I have 4x 18" subs at my disposal outside, and wondered how I can get the most of them. I was t...