Project Zero - dB Drag racing, Superstreet 1-2 From start to finnish. [Current record: 155,35dB @71Hz]

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dick move yes. What can we do about it? Nothing.
Just smile and continue, no time to worry about losses, when the journey is just at the beginning.

New timelapse video online:
Featuring Juuso Heinonen.
Follow his SQ build with BRAX speakers and Genesis amps at:
https://www.facebook.com/HeinonenSQ/

You can also follow us at:
https://www.facebook.com/teamperanurkka/

 

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Update!!

We are planning to make Project Zero white.
Also next few videos will be in different order in timeline, as i did got no time to edit the videos before Hifi Store Demodays

 

 

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And this is propably most recent video, where we plug the subs into 4ohm and wallsocket 230V 50Hz
(Really dgaf if the subs are seen in the video. We want to make thiskind of videos anyhow, the dust has been settled and new subwoofers will be replacing these when done, so we want to have fun with these neos first)
 

 

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UPDATE!

We did some testing couple days ago (video coming out at friday) and we have set our record!!
We are currently at 155,35dB 71Hz 

Here are the measurements:

 

our peak 155,35 was before these tests and it broke one of my prototype amplifier.
It was because powersupply had fets from different batches, and it did not like 1ohm impedance (0,25ohm nominal impedance). 
But the tests here were made at 1ohm nominal impedance -> box rise to 4ohms.

 

Impedance curve suggested that the boxtuning is now at 61Hz and we burped at 71Hz, i hink we should have tried that 60s before just burping the note we tought might me highest.
Lesson is learned here, first sweep, and calculate before just burping the s#it out from your amplifier

Loudest sofar. And it took us into TOP20-25 in the world (yeah, not measured at competition etc, but hey it is a start).
Here is a good milestone to celebrate, but we are far from beign done.
Need to have that 160-165 before christmas with low power so we can start chasing that 170+

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Update!

 

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Video from the 155dB burp