DE-9 BOX OF ANGELS

Triple Bandpass Filters / Noise source (by Djupviks Elektronik)

DE-9 Box of Angels is a three stage bandpass filter/bandpass-gate with integrated noise source in 12HP. Box of Angels can be used as three serial filters, a bandpass gate/crude VCA, and as a separate gritty noise source. The noise source is normalled to the module input, which means that Box of Angels can be a sound source on its own. There is also a dedicated noise output if you want to use the noise with other modules in your rack. Each filter has its own Amplitude control with CV input and attenuator, as well as controls for filter frequency and resonance. Turing up the resonance on the filters and sending CV to each amplitude allows for some interesting evolving tones without the need for external input.

Box of Angels – Build Document & BOM (all SMD already pre-soldered)
https://www.thonk.co.uk/wp-content/uploads/2023/03/BOX-OF-ANGELS-BUILD-DOC-1.pdf

https://www.thonk.co.uk/shop/de-9-box-of-angels-panel-pcb-set/