The Boominator - another stab at the ultimate party machine

[rubennn]

Haha awesome idea! Do you have an estimate of how many boominators there are built so far (how many of these could we expect to Roskilde Festival)? Either way, we should be able to find a solution to the connecting problem. Could also be cool to make a boominator wall/tower of some sort. I saw ThokN do it in a park in copenhagen with 2 other boominators.

Anyway... I was actually in Silvan today to ask for elasticity plastic sealant and the guy who helped me recommended this (I took a pic when I came home):

Also went for this:


Most concerned about the sealant. Is this gonna work on top of the boominator? Cause if not I'm gonna return it. Cost me 105 DKK a tube

[Saturnus]

Exactly what I use I just couldn't remember the product number. It's Bostik 2640 and the needed primer is Bostik 5075.

[rubennn]

Primer is needed also?

[Saturnus]

Originally Posted by rubennn

Primer is needed also?

Yes. I already posted that above, and try reading on the package. If used on untreated wood, you must use primer.

[rubennn]

I guess I oversaw it. Sorry. But yes - I read on the package now that a primer must be added also. Have to buy that tomorrow I guess. If you should estimate how much would be used - would it be more than 1 tube of each for each boominator?

[Saturnus]

Originally Posted by rubennn

I guess I oversaw it. Sorry. But yes - I read on the package now that a primer must be added also. Have to buy that tomorrow I guess. If you should estimate how much would be used - would it be more than 1 tube of each for each boominator?

No. One should be enough, also for inside sealing and piezo dampening.

[kblnig]

Originally Posted by Saturnus

...

Maybe we could ask Roskilde for permission (actually don't need it really but it's always good to ask first) to hog one of the agoras for a Boominator party. And place all the Boominators we can around the outside of the agora. It could become epicly loud in there.

wont that cause some troubles with phase shifts and so on when the boominators are not sharing one common amp? (i like the idea a lot )

[ThokN]

Originally Posted by Saturnus

You need 2 solar panels. You just connect one solar panel to each battery. That's it. For amp switching you need a 4 pole, 2 or 3 position switch and this wiring.

1234 = Connect 1 to 3, and 2 to 4 for 12V ... connect amp6b from 1 and 4
1234 = 1: Bat 1+ / 2:Bat 1- / 3:Bat 2+ / 4:Bat 2-
1234 = Connect 2 to 3 for 24V ... connect amp9b from 1 and 4
.

Thank you Saturnus. That is exactly what I was looking for. And I will take your advice and buy 2 solar panels. This will be so great

[Saturnus]

Originally Posted by ThokN

Thank you Saturnus. That is exactly what I was looking for. And I will take your advice and buy 2 solar panels. This will be so great

Actually rethinking it it will probably be even better to connect like this:

1234 = Connect 1 to 2, and 3 to 4 for 12V ... connect amp6b from 1 and 4
1234 = 1:Bat 1+ / 2:Bat 2+ / 3:Bat 1- / 4:Bat 2-
1234 = Connect 2 to 3 for 24V ... connect amp9b from 1 and 4

If you chose a 3 position switch then the center position will be both amps off.

Not sure how you'll realize the speaker output switching though, if at all.

[ThokN]

Originally Posted by Saturnus

Actually rethinking it it will probably be even better to connect like this:

1234 = Connect 1 to 2, and 3 to 4 for 12V ... connect amp6b from 1 and 4
1234 = 1:Bat 1+ / 2:Bat 2+ / 3:Bat 1- / 4:Bat 2-
1234 = Connect 2 to 3 for 24V ... connect amp9b from 1 and 4

If you chose a 3 position switch then the center position will be both amps off.

Not sure how you'll realize the speaker output switching though, if at all.

We will have some 'bøsninger' into each speaker compartment, so that we can shift between the two amp-outputs. We have also made the center compartment as a sort of tray that you pull out from the side of the Boominator. In this tray there will be both batteries, amps, volume knob and powerswitch etc. So the whole middle compartment can be taken out as a tray.

If we imagine that both speaker out from Amp6 and Amp9 was going into the same shared cables for the speakers, will that burn the non-operating amp or something? Or will it be okay to do? Because that would be even simpler.


I've decided to go with a 4-pole 2-way switch, and a seprate 2-pole single-way switch for the power. The power switch will be placed before the amp-switch. The reason for this is that it would otherwise not be possible to have the solar-cell connected at all times. If we used a single 4-pole 3-way switch, then the solar-cell would only be connected when the switch is set to Amp6(12V)-mode. This would also mean that we would get the benefit of the sun whenever the boominator is turned off (middle-position of the switch).