No, you aren’t taking a look at a 30 yr outdated Teac graphic equalizer that anyone changed. The MWA-002 Community Song Participant created by way of [GuzziGuy] is constructed completely from new elements, and simply ranks up there with one of the vital maximum stunning items of homebrew audio equipment we’ve ever noticed. Combining modular with trendy production tactics, this 1980s impressed construct is a testomony to.
The enclosure, despite the fact that it seems the entire global like a repurposed piece of antique , was once constructed with the assistance of a CNC router. It’s made out of items of cast oak, plywood, and veneered MDF that experience all been meticulously routed out and minimize. Even the entrance panel textual content was once engraved with the CNC after which stuffed in with black paint to make the letters pop.
Internally, the MWA-002 is powered by way of a Raspberry Pi 3 working Mopidy to play each native tracks and streaming audio. Now not glad with the Pi’s integrated features, [GuzziGuy] is the usage of a Behringer UCA202 to provide CD-quality audio, which is then fed right into a TPA3116 amplifier. In flip, the output from the amplifier is terminated in a suite of feminine jacks at the participant. Similar to the stereo apparatus of yore, this participant is designed to be attached to a bigger audio device and doesn’t have any interior audio system.
The principle show is a 256×64 Futaba GP1212A02A FVD which has that era-appropriate glow whilst nonetheless turning in trendy options. [GuzziGuy] says it was once harder to interface with this I2C show than the LCDs he used previously because of the loss of to be had libraries, however we expect the general product is evidence it was once definitely worth the effort. He purchased each the VFD spectrum analyzer and LED VU meter as turn-key modules, however the heart equalizer controls are totally customized; with twin MCP3008 ADCs to learn the state of the sliders and the Linux Audio Developer’s Easy Plugin API (LADSPA) to tweak the Pi’s audio output accordingly.
right here at rootraw.com, however typically talking, maximum tasks contain . Whilst the ones tasks are to be admired, the engineering that is going into growing one thing of this caliber from modular elements and uncooked construction fabrics is in point of fact an accomplishment on an entire other stage.