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Class D Switching Power Amplifiers and Power D/A conversion

The Boominator - another stab at the ultimate party machine
The Boominator - another stab at the ultimate party machine
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Old 12th July 2018, 01:16 AM   #6681
Flipboy02 is offline Flipboy02  United States
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Default Can this Amp & DSP board be used for the Boominator Lite version?

Hi folks,

It's been a long while since I last posted. I am getting ready to build the Boominator Lite version as I have all the drivers. Since the original amp from 41Hz is no longer available, I came across this new board from Sure: 2 x 50 Watt Class D Audio Amplifier Board with Audio DSP - JAB3-250

It is available with a battery module (3x18650). I think you can wire two of these in serial to get 22V. Would it be enough to run the Boominator Lite?

Any insight would be greatly appreciated? Thanks
-Nelton
Attached Images
File Type: jpg jab-3-50-9_1.jpg (99.8 KB, 49 views)
File Type: jpg KAB-250 Pin Definition.jpg (90.7 KB, 49 views)
File Type: jpg KAB-250 Specs.jpg (54.9 KB, 49 views)
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Old 12th July 2018, 03:24 AM   #6682
doctormord is offline doctormord  Germany
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I came across this nice little device too, with the battery module it reminds me on the cAMP by GMarsh.

With integrated Bluetooth it would be perfect, but you can wire up a CSR64A215 via I2S to the DSP expansion header.
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Old 12th July 2018, 04:52 AM   #6683
Flipboy02 is offline Flipboy02  United States
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What is a CSR64A215? It's not on Sure's site. Do you think two of the battery modules wired in series would be enough to power the Boominator Lite at close to max volume to last 8 hours?
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Old 12th July 2018, 04:56 AM   #6684
Flipboy02 is offline Flipboy02  United States
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Sure sells a bluetooth V4.0 board with APT-X for $22.90USD. Are there similar boards that are cheaper and still connect to the JAB3-250 w/ DSP?
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Old 12th July 2018, 09:07 AM   #6685
lutkeveld is offline lutkeveld
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Sure has some cheaper boards available: Sure Electronics' webstore Bluetooth Receiver Board

Two battery modules would push the input voltage to the limit. A 5S pack would be optimum for these boards.
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Old 13th July 2018, 09:07 PM   #6686
Flipboy02 is offline Flipboy02  United States
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@drmord: I know what the CSR64A415 is now. I came across it on eBay. Thanks for your suggestion. I might try it out.
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