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Bluetooth Boombox

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Project by Airspeed posted 11-18-2018 02:36 AM 768 views 6 times favorited 11 comments Add to Favorites Watch

Finished this project recently, built it for my shop out of some speakers I had, bought a Bluetooth amp board, a 14.5 volt 5 Ah nimh battery and charger and installed it into the cabinet. Plays at medium volume for over 16 hours on one charge. This sucker sounds amazing. Has two 3” woofers, two .75” tweeters and a 5” subwoofer. The lighter colored one is for a customer who saw mine, I bought better speakers for it so it should sound even better. Made a few changes on the cabinet as well, still need to spray the clear on it. I have six of these to build now.

-- http://smg.photobucket.com/albums/v655/aaronhero/





11 comments so far

View Redoak49's profile

Redoak49

3667 posts in 2191 days


#1 posted 11-18-2018 02:46 AM

What Bluetooth board are you using.

Looks very nice.

View Airspeed's profile

Airspeed

452 posts in 2105 days


#2 posted 11-18-2018 03:01 AM


What Bluetooth board are you using.

Looks very nice.

- Redoak49


I bought this one, AOSHIKE DC12V-24V 2.1 Channel TPA3116 Subwoofer Amplifier Board High Power Bluetooth Audio Amplifier Board 2×50W+100W(2×50W+100W) https://www.amazon.com/dp/B07BKYL3GC/ref=cm_sw_r_cp_api_Gvn8BbDXDFAS3

I was really surprised how great this little amp sounds, there’s no noise, gets very loud and sounds very clean, is very efficient, specially for the price and the Bluetooth transmits and receives over 100 feet away.

-- http://smg.photobucket.com/albums/v655/aaronhero/

View ralbuck's profile

ralbuck

5417 posts in 2469 days


#3 posted 11-18-2018 04:56 AM

Very nicely completed!

Enjoy the sales; they help to keep sawdust on the fl;oor!

-- Wood rescue is good for the environment and me! just rjR

View Redoak49's profile

Redoak49

3667 posts in 2191 days


#4 posted 11-18-2018 12:28 PM

Very nice amplifier board. Are you some kind of cross over board for the woofer and tweeter? I am not very good with electronics but may give this a try.

I have built a shop Bluetooth speaker but really like yours. Great design. Are you using a router and template to make the case. It would be great if you posted a blog or something about how you made this. It is a great design.

View majuvla's profile

majuvla

13386 posts in 3070 days


#5 posted 11-18-2018 01:03 PM

Awesome combining engineering and bandsaw box making. I like those contrasting colours…white with dark brown details.

-- Ivan, Croatia, Wooddicted

View boxcarmarty's profile

boxcarmarty

16741 posts in 2563 days


#6 posted 11-18-2018 01:37 PM

Wow!!! Your projects have always been inspiring and of a different tune, great idea and thanks for posting…..

-- My mind is like lighting, one brilliant flash, then its gone.....

View Airspeed's profile

Airspeed

452 posts in 2105 days


#7 posted 11-18-2018 01:40 PM



Very nice amplifier board. Are you some kind of cross over board for the woofer and tweeter? I am not very good with electronics but may give this a try.

I have built a shop Bluetooth speaker but really like yours. Great design. Are you using a router and template to make the case. It would be great if you posted a blog or something about how you made this. It is a great design.

- Redoak49


Very nice amplifier board. Are you some kind of cross over board for the woofer and tweeter? I am not very good with electronics but may give this a try.

I have built a shop Bluetooth speaker but really like yours. Great design. Are you using a router and template to make the case. It would be great if you posted a blog or something about how you made this. It is a great design.

- Redoak49

I made the crossovers for woofers and tweeters myself, I have a lot of inductors, capacitors and resistors left over from other loudspeakers I’ve built. The amp I’m using has a built in adjustable crossover for the sub. I used my CNC machine to cut out each layer for the cabinet, I integrated the port in each layer for the sub in the first speaker. The drivers I bought for the second (lighter colored one with the dark grills) leaned towards ported alignment so I included ports for them as well. Took a while to design each chamber and get the correct volume because of the odd shape of the dividers, was a pain in the butt calculating that!

-- http://smg.photobucket.com/albums/v655/aaronhero/

View Airspeed's profile

Airspeed

452 posts in 2105 days


#8 posted 11-18-2018 01:44 PM

This is the interior of the second boombox, you can see the three ports, the center, oval port is for the subwoofer, I ported it out the back to reduce port noise.

-- http://smg.photobucket.com/albums/v655/aaronhero/

View Airspeed's profile

Airspeed

452 posts in 2105 days


#9 posted 11-18-2018 02:03 PM



Very nicely completed!

Enjoy the sales; they help to keep sawdust on the fl;oor!

- ralbuck


Thanks! As for sales, these suckers cost $300 each to build, I usually add the same as material costs for labor but in this case it would put the sale at $600, that seemed a little high for a boombox even though they sound much better than can be had commercially. Not getting rich on these but I really enjoy building them!

-- http://smg.photobucket.com/albums/v655/aaronhero/

View Redoak49's profile

Redoak49

3667 posts in 2191 days


#10 posted 11-18-2018 03:35 PM

Thanks for the extra pictures and explanation. These are great look good and great electronics.

View mcoyfrog's profile

mcoyfrog

4542 posts in 3797 days


#11 posted 11-19-2018 02:41 PM

This is really kewl, I love everything about it.

-- Wood and Glass they kick (well you know) Have a great day - Dug

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