$45 Polyphonic Phase Modulation Synth

What does $45 get you nowadays...?! We'll, it gets you a Polyphonic Phase Modulation Synth with 5-Pin MIDI and an Editor! Not bad - the MadLab Bleep-o-Tron Redux is a DIY Synth, which is a later iteration of the monophonic version released a few years ago. It's got 2 oscillators, with 6 phase modulation waveforms, 6 LFOs, 6 ADSRs, ring modulation, and some rudimentary effects! 

Amazing value, the specs are below:

TECH SPECS

• polyphonic with 4 voices (4 notes can be played simultaneously)
• 2 x oscillators (timbres) per voice
• 8 x phase-modulation waveforms + combinations (36 in total)
• white noise
• 6 x ADSR (attack-decay-sustain-release) envelopes per voice
• 6 x LFOs (low-frequency oscillators) per voice
• 6 x LFO waveforms (sine, square, triangle, rising sawtooth, falling sawtooth, noise)
• detuned oscillators by semitones or cents
• connects to standard MIDI keyboards (velocity sensitive)
• keyboard transpose (up to +/– 2 octaves)
• keyboard split
• pitch bend and modulation
• ring modulator
• oscillator synch
• flanger (swept comb filter)
• portamento (constant rate and constant time)
• delay line (up to 150ms) with feedback and dry-wet mix
• selectable MIDI channel #1 to #16 or all channels
• 40 x preset patches
• 24 x user patches (non-volatile)
• master volume control
• Windows desktop app Patch Editor

Check out the product page here: https://www.tindie.com/products/madlab/bleep-o-tron-redux-kit/

• Look Mum No Computer Interview 20-Oct-26
• KORG MS2000R Hardware-Level Emulator 20-Oct-26
• STR-500 Gestural Granular Synthesizer 16-Oct-26
• F9 Kits Vol 1 & FREE Beat Machine 15-Oct-26
• SLEDGEHAMMER: Music Production Breakdown 14-Oct-26