Archive for the ‘Uncategorized’ Category

The RMX Drum Module

June 12, 2018


The RMX is a vintage drum module in 12HP.
18 classic eprom sounds with separate outputs.

– 18 classic 80’s EPROM drum sounds (a-Law 8-bit 24KHz)
– 6 voice polyphonic
– 6 slider knob volume mixer
– 6 tuning knobs 15 – 30 KHz sample frequency
– 6 separate drum outputs
– 1 mixed mono output
– MIDI input 3.5mm TRS-jack type ‘B’ (Arturia)
– USB-MIDI I/O 3.5mm TRS-jack (tip is D-)
– Transmitts triggers and tune knobs to DAW over USB
– Supplied with necessary MIDI and USB adapter cables


Trellis Feather dsp-G1 synthesizer

May 21, 2018


John Parks has released the Trellis Feather dsp-G1 synthesizer over at Adafruit Learning.

“The DSP-G1 makes beautiful, classic paraphonic synth sounds, similar to the famous 1980s Roland Juno-6. You can play up to five notes at once, each with three oscillators, and you can dial in multiple wave shapes, detuning, LFO, 24db filter, ADSR envelopes for the amplifier and filter, and more!
The Feather M0 Express can read your Trellis keypad buttons and potentiometer knobs and then send these commands to the synth chip as MIDI messages.”

The dsp-G1 celebrates a 4 year anniversary this week.

During this week the dsp-G1 chip is only $10 at

O2 Minipops DIY Kit available

May 15, 2018

Now at

New worldwide shipping fee

May 15, 2018

New fee for worldwide shipping.
$10 flat rate on all items.


New RMX-6 Drumchip

May 15, 2018


The RMX6 is a complete PCM Drum Synthesizer in a 28-pin DIP with 6 separate outputs and MIDI control.

It features 6 separate trig inputs and 6 separate analog tune inputs.

1 input for +6dB accent and 6 separate mono outputs.

It also features at MIDI input for drum triggering on CH#16.


Download PDF manual

Available at

R606 MK-II

May 14, 2018

Only $149!



May 4, 2018


The preprogrammed Digispark DIY USB-MIDI to CV board is now available in the webshop.

The 4HP dspX Platform

April 30, 2018


The dspX is a 4HP programmable DSP module.

It can be whatever you program it to do.
Oscillator, Synthesizer, Drums, MIDI to CV in/out.

  • 2 CV inputs with attenuators
  • 1 Gate/trig/USB input
  • 1 DC coupled output
  • USB input for programming or MIDI control

USB requires a special cable for plugging into INPUT 3 jack.


The USB-MIDI interface is class compliant and requires no drivers.
Supports Windows, iOS and Android.

The back of the PCB has a DSP port for expansion of the capabilities.

The module stores the last program in non-volatile memory and works as standalone module.

The module is delivered with the Solina string synth software preinstalled.
Monophonic with CV/Gate or Polyphonic played over USB-MIDI.

Available at the Webshop for $99.

Awarded Top-40 Synthesizer Blogs

April 20, 2018


DIY Synthesizers was awarded as one of the top 40 synthesizers blogs 2018 by Feedspot

We celebrate this by giving you 30% off on the cart value at

(use coupon code “TOP40” when checking out. Valid one time per customer.)

DIY USB2DIN Sync adapter cable

April 18, 2018

How to build a cable that sync your Roland drum machine to your DAW.


Read more …