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Old 21st February 2013, 11:22 AM   #3461
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Join Date: Aug 2004
Location: sunny Queensland
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I was unable to fit the tweeters in at the same level as I widened the center to fit bigger batteries that I will not end up using anyway lol.

Even so, I was unaware that it would cause a dip in freq at that range or in any range :-)

But I have seen some weird boominators that are not even close to the original design. And as we are all individuals and interpret everything based on instinct OR experience/ learning, overall I'm happy with how I am proceeding albeit pretty slowly

The top of my boomer s removable (in my build thread) so I do have full access to all components.

Making and fitting the brushed stainless plates for the front/rear panels tomorrow
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Old 21st February 2013, 02:48 PM   #3462
larzman is offline larzman  United States
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Stevodude - nice looking Boominator.

1 thing I want to mention, maybe your electrical diagram was not drawn the way it's actually being hooked up... but the batteries (-) terminal is connected to the amp's and the LED's (+) terminal, something is not right. You may want to reconsider the connections (or the diagram) before actually hooking things up.
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Old 22nd February 2013, 01:26 AM   #3463
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Ha, cheers Larzman, yes, just a slip up of the drawing.

Here's the new one, added usb, and tidied up the power rails:

Click the image to open in full size.
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Old 22nd February 2013, 05:01 AM   #3464
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The job today was to go from the design on a piece of paper to cardboard to Brushed stainless steel.

And the finished results below.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
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Old 23rd February 2013, 12:49 AM   #3465
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Well I originally intended to build a stereo with just two tens, but after reading about bafflestep I have ended up modifying my plans to end up being essentially a boominator clone, so I will post the pics here. I am still in the midst of building it. If anyone could tell me where they got their corner guards I would be infinitely grateful. One of the corners of my box already got damaged and it needs to be covered because I sanded it away and it looks fairly noticeable in the pictures.

Parts:
(4) MCM 99-2961 10" Woofers (~96dB, 100-4khz or so)
(2) MCM Piezo's
(1) UB12220 22aH 12v SLA
(1) Genasun 5A MPPT Charger (mmmmm I am so pumped to use this....it will end up being around 15-40% more efficient than the rest of the builds where people haven't used one)
(4) 5W Monocrystalline PET laminated panels
(1)TA2020 Chip Amp

I changed the dimensions significantly to adapt to the woofers I am using to continue to allow magnet to magnet mounting. I am also not using a center compartment, I am going to allow the speakers to share the entire chamber. I am going to brace significantly though in many areas after everything is installed.

Sanded all the edges, as the cuts were significantly off.
Click the image to open in full size.
Click the image to open in full size.

No I didn't jigsaw, I used a router for the cutouts
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.

I gotta fill the holes and then use some filler to smooth everything, but so far it looks pretty good IMO. We will have to see how it sounds since it is using a very different speakers.
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Old 23rd February 2013, 07:32 AM   #3466
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I wouldn't think L & R sharing the same chamber is NOT a good idea.
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Old 23rd February 2013, 11:26 AM   #3467
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Quote:
Originally Posted by stevodude View Post
I wouldn't think L & R sharing the same chamber is NOT a good idea.
I read up on cancellation and the sort. Since I have a removeable top panel, if it sounds terrible I can always put in a center divider, however it doesn't seem like it is going to be an issue. If the drivers were out of phase then yeah, that would be bad.
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Old 23rd February 2013, 12:58 PM   #3468
Svampan is offline Svampan  Denmark
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Location: Copenhagen
First of all I'd like to thank all the people who've been contributing to the boominator phenomena, I've been digging through all the information regarding the project, and learned quite a lot about the compromises of building a portable sound system. It has been very interesting and my own project is very well underway, however I seem to encounter a lot of deal breakers, where a new functionality I consider implementing completely change the design - Guess that's the first lesson in DIY Audio

I haven't made up my mind about wether it should be 12v or 24v, I thought I had settled on the muse m20 at 12v, but it appears that people are building bigger and bigger, so perhaps it should be amp9 at 24v after all. It's very difficult for me to decide as I unfortunately haven't heard a 12v boominator yet..
I have 2 li-ion 18000maH, and 2 10W amorphous solar panels, so power shouldn't be a problem, but weight is.


Will it be worthwhile to use 4 hp10W at 24 volts, and then a mini dsp with P.Audio PHT-407N for a noticeable gain? I'm an amateur audiophile, so I'd appreciate good sound.

I know it has been asked many times, but I've been unable to find the answer in the various forums. How would you make a switch for 12v to 24v? simply between the batteries, for single/serial connection, wouldn't this result in uneven battery depletion?

I read about Saturnus mentioning a ta2020 amp with build in bluetooth, which is a fantastic idea, however I haven't been able to find a simple module suitable for integration in a portable setup. is this even possible with an amp9?


Thanks again, summer is approaching and this time I'll be prepared!
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Old 23rd February 2013, 10:13 PM   #3469
ekbaird is offline ekbaird  United States
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Join Date: Jan 2012
Default Piezo Source coupon code?

After reading these posts
The Boominator - another stab at the ultimate party machine
and
The Boominator - another stab at the ultimate party machine

I tried to email, call, and PM them for a coupon code but have gotten no response. I need to offset the cost of this project as much as I can. Will someone who has done business with Piezo Source PM me a discount code please?
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Old 24th February 2013, 04:13 AM   #3470
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I have proceeded to glue the front/back baffles in.

Click the image to open in full size.

I still have some wiring to sort out. Mount Batteries and Amp in the space, route the edges, and a final 3 or 4 coats of clear, some corners and 1 Boominator ready for a PARTY!
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