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Discussion Starter #1
Hallo Im new on the forum,so my name is Kamil, nice to meet you all!
Im building earthquake supernova 15 subwoofer. I have some queastions for you.The orginal supernova have 2,5 cuft3 i think but it is good feet for low bass ? I have slaps 15 with no mass added ,but i have seen on photos that some of supernovas have added mass to the slaps ,how much masss i must add ?The magma speaker is connect in 1.6ohm configuration or 6.4ohm ?The sub have any wool or something like that inside ?Please help my becouse it is construction of my life! Bye
 

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Discussion Starter #5
magma 15 has dual voice coil ,3.2ohm ich of one. I have mosfet holton and it is working on 2ohm with 800wats.
 

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Discussion Starter #7
the orginal supernova mkvI have it 2,5ft.cu (71litres)and on the site of earthquake they recomend 2,5ft cu to a low bass,but nothing about mass. I have sent them a massage but no answer yet.Sory for the bad english. I didint get any thiele/small info about slaps radiator. Bye and thanks for response.
 

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Discussion Starter #13
Sory wrong info. I must build 1,97cu ft (67litres) 16'16'16' cube .Must ad 312 grams ,11ounces to a slaps 15, what do you thing about it? i dont know what dimension do i have, with a amplifier inside or without. How many litres the supernova amplifier may have? i have try to calculate the dimensions what i have to a orginal supernova 18'18'20' and i thing the amplifier from supernova has 7 litres (0,247 cu ft)but i dont know the aplifier have own mini enclusure inside sub,or the amplifier is naked inside.
 

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I would say the amplifier does not have its own enclosure. The displacement of the amplifier is very small, it would not make much difference in the total internal volume of the sub. 1.97cu. ft. = 56 liters, add 11 liters for driver, SLAPS and bracing = 67 liters = 16" internal cube = 18.5" external cube.
 

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Discussion Starter #15
I dont know that I understand what mean bracking it is some wood in enclusere that make it firm? What do you think what thick of mdf it will be good? but please write it in milimetres.Driver has it 4,5 litres, slaps i dont know but not much becouse it is totaly flat it takes max 2 litres. 312 grams it is heavy and it is on smal bolt, it is possible that the bolt would broke the slaps.Bye.
 

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Discussion Starter #17
19mm will be good?I was searching for a 30 mm mdf but it is very hard to buy it.I was thinking to putt 3 bracking inside or one big look like wall with lots of holes. Put inside some wool?
 

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Discussion Starter #19
looks good but it will be hard to put this kind of crates inside becouse the speaker is big and the enclosure is small that small. If i putt a one wall with lots of holes in it.I was wonder if the orginal have it any bracking inside. This enclosure you show me is PR enclosure?
 

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