Channel: Charcoal Monkey

Category: Howto & Style

Tags: diy bluetooth boomboxtweeter capacitorwifi bluetooth stereo speakerthe best bluetooth speakerwifi vs bluetooth speakersportable wifi speakercrossover capacitor and inductorhifi stereo boomboxportable multi room stereoportable radiojbl wooferdiy routed mdf speakerhow to make bluetooth speakerdiy bluetooth speakerportable hi-fi stereo speakersjobsite radiohow to make crossoverwi-fi radioarylic a502 way crossoverinternet radio streaming

Description: I listen a lot of music specially when I'm on the workshop building projects so I needed somewhat a semi-portable Wi-Fi, Bluetooth, multiroom hi-fi stereo radio in one. To be able to play high quality 320kbps internet radio streams without using a bunch of mobile apps and play through Bluetooth to output music from YouTube and such. The awesome WiFi/BlueTooth music streaming device embedded in the portable speaker is the AryLiC A50, more information about the product in this link - arylic.com/products/arylic-a50-wifi-bluetooth-multiroom-full-digital-hifi-amplifier-with-airplay-dlna-multiroom-control Without a further ado, let's get this thing started. 00:00 - STEP 1: Design and build a 2-way crossover by modifying a cheap ready-made frequency dividing networks bought online. My goal here is to design a 1st order 6dB slope with a crossover point at 3000Hz approximate, perfect for a 6 Ohm woofer and a 12 Ohm tweeter. Capacitors for the tweeters are 4.7 micro Farad 250v rating and the inductors are 0.35 millihenries for the woofers as well. Which calculates to cross in the 2800Hz frequency using a web crossover design calculator. After soldering the components into the circuit board, I temporarily soldered the tweeter and woofer to test the crossover network on Dayton Audio DATS v3. It turned out it actually has a crossover frequency of 3041Hz on the impedance meter graph. 01:55 - STEP 2: Building the boom box. There still a whole bunch half inch thick MDF sheets lying around the house so I go ahead cut them to shape. The whole nine yards of woodworking goes here. If you are interested with the schematics, here's the link - tinkercad.com/things/35DefokhB1T Applied a bit of sanding sealer before sanding further and applied Bondo body filler, sanded smooth then spray painted gloss white. I decided to give the box a spatter/splatter painting treatment for a more rugged look. I used a double sided foam tape in securing the crossover boards inside the boombox and further strengthening by screwing down with self tapping screws. 05:05 - STEP 3: Assemble everything. One of my most favorite part in building speakers is putting all electronics components together. Screwed down a heavy duty buckled handle grip that flexes straight when not being carried. I sealed all the seams using a soft rubber tape to ensure no leaks. Filled the boombox with polyester fiber fill to make the box appear bigger to the woofers therefore lowering the box resonance frequency. Soldered every tweeter and woofer in reverse polarity since they pass through a crossover that flips the phase 90 degrees. I verified and tested the final speaker polarity by using an FH-168 phasemeter tester. Screwed the speakers into the box using carbon steel Allen Hex wood screws. 07:15 - STEP 4: Finally, plug in and dance! Hooked and attached the Arylic A50 Wireless Stereo Amplifier Multiroom streaming device. Used a two-sided tape to secure the device on top, plug into 220v outlet, play music on YouTube via Bluetooth, and dance like no one is watching!