Boominator MINI (development thread) |
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pukkita
New Member Joined: 16 July 2018 Location: Spain Status: Offline Points: 3 |
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Been reading but not sure of the JAB amps and cable needed (before Lutkeveld's amp is released)... JAB2, JAB3? what needs to be connected? An active DSP crossover board?
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Saturnus
Old Croc Joined: 13 July 2010 Location: Copenhagen Status: Offline Points: 2025 |
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Wondom have made a video that shows the procedure but I'll naturally detail it in as much detail as I can. And naturally I'll make a custom DSP program for it. I'll also reach out to Wondom to ask for possible custom Boominator Mini sets because I'll actually have to remove 2 of the potmeters on the board and move them to control the volume and room adjustment to the control panel. Edited by Saturnus - 03 August 2018 at 1:01pm |
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pukkita
New Member Joined: 16 July 2018 Location: Spain Status: Offline Points: 3 |
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thanks Saturnus!
Now I realize it will be a 4.0 system to be able to fine-tune via DSP for indoors, etc... understood. I'm hooked up to this boominator-mini project, as soon as I'm confident I know the right parts will start ordering them. Having an already made kit will be superb :) So it's gonna be 3D-printed?
Edited by pukkita - 03 August 2018 at 1:57pm |
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Tafse
New Member Joined: 17 July 2018 Status: Offline Points: 4 |
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I realize this is under development, but I would very much appreciate a nudge in the right direction so I can plunder on a bit and practice me feeble skills while we wait. Knowing myself I will want to start over again after the first try, no matter how long and well I plan it. Hopefully someone can answer some of the questions.
Does this mean that the Jab2 and 3 is not usable straight out of the box? I just received mine and it seems pretty straightforward, and wondom sure has a lot of helpful videos. I did not however order the DSP programming board, and have not dived into that part yet. As the ND140 is in between the monacor and aura in depth, what is the advisable approach regarding the earlier designs? Is it possible to make some easy adjustments? I am trying hard to track down a supplier that offer 6-cell lifepo4 19,2 balancing charger and everything else needed. Who are the go-to suppliers in europe? I have not managed to find an all in one supplier like batteryspace, and trying my luck on aliexpress seems like a dangerous venture. Everything posted earlier in this thread is unfortunately outdated links, and about 12v systems. Edited by Tafse - 15 August 2018 at 1:28pm |
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pukkita
New Member Joined: 16 July 2018 Location: Spain Status: Offline Points: 3 |
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Tafse from what I've researched, you can daisy-chain two 3-cell PCBs ihttps://www.soundimports.eu/en/kab-be.html
Edited by pukkita - 17 August 2018 at 4:12pm |
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Aterren
Registered User Joined: 14 July 2013 Status: Offline Points: 151 |
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Saturnus - Any updates? I am going to have to tear down my workshop for a good while and would love to hang out a few cases before then if possible. :)
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uzip498
Registered User Joined: 31 August 2015 Status: Offline Points: 27 |
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How long untill the new boominator mini plans are going to be released??
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Aterren
Registered User Joined: 14 July 2013 Status: Offline Points: 151 |
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These projects don’t tent to happen on a schedule...
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protos
Registered User Joined: 23 November 2017 Status: Offline Points: 29 |
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You are appreciated by us diyers for your generous input. However you did whet our appetite with a "promise" so it is natural for us to be expectant.
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ErikDIY
New Member Joined: 23 November 2018 Location: Norway Status: Offline Points: 1 |
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It's so nice to see some new development in this thread! Just made an account so I could reply and share a project that I've been working on lately. I'm currently developing a PCB with basically all of the features that lutkeveld PCB got, but it's based on the TPA3116D2 and the ADAU1701. It also got the CSRA64215 for BT 4.2 with TWS. The board also got an ATMEGA328 for battery indication etc, and it's all (logic) powered by a MP1584 for low standby currents (Qi) of around 150 uA. I'm not yet done as I'm struggling understanding the I2S setup and trying optimise the board as much as possible. I will however take your considerations Saturnus for mapping out a couple of pins for analog volume control (or encoder?) and a switch to change the tuning of the speaker. I also need to learn SigmaStudio so I can be sure that I'm using the right pinouts so that everything will work. (got a JAB3 to play with) I'll do a post showing off my current progress on the diyAudio website where I'll show pictures and go more into detail. Hopefully there will also be some other people out there that can help me so I can start creating a prototype.... And before you ask, you could go with the Sure JAB3 ++, but this board will have everything on a single surface. It won't be as small as lutevelds' board, but it will have the advantage that the home user can easier change the settings of everything (BT name, sounds, events. DSP, and general stuff like amp standby/shutoff time and battery indication...). I'll publish it all as an open source project when it's done so everyone can build it, or get em produced. Let me know saturnus/you guys think :) Couldn't get a picture posted, but here's a link to a picture of it in it's current stage (23.11.18) http://www.dropbox.com/s/5oiyzutiyyxk9h3/V3.2.png?dl=0 -Erik
Edited by ErikDIY - 23 November 2018 at 5:51am |
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lutkeveld
Young Croc Joined: 23 September 2013 Location: The Netherlands Status: Offline Points: 517 |
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That is so cool Erik! If you want some help, send me a DM. I already see some points that can be optimized. I can also share some insights on the software design I did.
The CSRA64215 is a great choice, I want to use that one for rev2 (specifically the BTM625). What voltage does the logic run on? 3.3V? There might be some better options (lower Iq and cost) for the voltage regulator. How far are you? What is working? The board layout seems pretty finished already. Very nice project! |
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Palomino
Registered User Joined: 26 June 2013 Location: Chicago Status: Offline Points: 80 |
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I thought you guys might be interested in an update.
With the advent of the 2.1 amps that are out now, I made a boominator mini with a subwoofer. I realize it departs from the original design, but it sounds really good and the bass carries outside better than I expected. In essence, its a boominator mini with the woofer/tweeter cabinets standing up on either side with a .5L subwoofer cabinet in between. A amp compartment sits on top of the amp and can be removed and used separately if you want to add some speaker taps. I had some NS6 drivers and the ND16F tweeters leftover. Sub is a 6.5 Dayton audio in a .5L ported cabinet. Edited by Palomino - 05 April 2019 at 2:57pm |
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