My entry level 2 x 5W 4 ohms Bluetooth speaker, Basic but not cheap - PART 2

I received most of the parts, sourcing some in China was a pain.

I only have to finalize the laser cut panel, and I am good to go.

Anyway I am so excited to finished the assembly, I am sure it will sound good !

A glimpse of my DIY Bluetooth speakers

From 2x5W to 2x50W all portable DIY bluetooth speakers.

2 x 50W, TPA3116D2 amp, DAYTON AUDIO ND140-4
2 x 20W, MAX9744 amp, DAYTON AUDIO ND90-4
2 x 8W, TPA3110 amp, Peerless - 2,5"
2 x 5W,  HT6872 amp, Chinese but good Speakers

Enough to fit all needs, space and room.

This will give you an idea of the scale among them.

HAPPY 2017 !!!!!!!!!!!!!!!

My entry level 2 x 5W 4 ohms Bluetooth speaker, Basic but not cheap - PART 1

What I will build is this one, This will make a nice birthday gift :

base inspiration from this Chinese Brand Jiteng Jt088. , and others DIY project around internet.

Specs are :

CSR8645 Amplifier Board 5W+5W, Bluetooth 4

The integrated amplifier is the HT6872, low energy consumption

1.40W (VDD=3.6V, RL=4Ω, THD+N=10%) 

2.80W (VDD=5.0V, RL=4Ω, THD+N=10%) 

4.70W (VDD=6.5V, RL=4Ω, THD+N=10%) 

We will powered it @ 6.5V to get maximum output.

Passive membrane

Tweeter, just for fun PTMini-6 - DAYTON AUDIO, It is awesome, I just love it.

Speakers, that I found months ago on TAOBAO.com, they are surprisingly good from my previous testing.

And all other internal components which are

    - Step up module

    - 18650 Battery

    - LC filter

    - Little crossover

    - micro USB charging board

    - On / Off Button

    - Acrylic panels front & rear, plywood for the central part.

My cutting files, ready to press on fire button !

Still not sure If I permanently seal the box, or add screws to open it, in case the battery needs to be change in the future.

NEW 2 x 8W Speakers - Panels - PART 2

Finally, I have done my laser cuts panels.

Cutting accuracy is thrilling


All pannels

Front assembly

Rear view

Check if measurment is good, assembly of the enclosure, painting...


A high quality glue is Titebond original

NEW 2 x 8W Speakers - powerful sound - PART 1

My Friend was so happy seeing the computer simulation, 

Here are the specs :

Peerless - 2,5" full range speaker

Dayton Audio Tweeter ND16FA-6, 

Peerless - 2,5" Passive membrane for good BASS.

Home Made Crosseover Linkwitz-Riley

Sure Electronics TPA3110 -

2 x 8W 12v - 4 ohms

Sure electronics bluetooth 4.0 (huge gap with cheap board trust me !)

Line in (not shown in the simulation as that was a late request)

Internal 18650 Powerpack for long lasting music

Laser Cut MDF panels.

230mm x 105mm x 100mm

19V -24v 3A input.

Preparing my laser cut panels.

We chose this nice color from ELASTOPRIM HYDRO, a high quality paint very good for MDF panels.