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Grandpa (Wood)

Grandpa (Wood)

Dual Granular Sampler

People have asked Bastl Instruments to bring the microGranny into the modular and they decided to rethink the whole granular sampler idea to fit it best into a small size eurorack module. Grandpa is the result!

Grandpa uses the same sound core as microGranny 2

it has 2 trigger inputs to trigger 2 different samples, CV input assignable to any sound parameter and signal OUTPUT. The CV input can be also used to trigger grain shift. Grandpa reads mircoSD cards accessible from the front panel and runs on the same sound core as microGranny 2. For each sample you can adjust: sample rate, crush, grain size, shift speed, attack, release (full release is hold), start and end position.


•           Granular sampler with microGranny 2.0 soundcore

•           Plays wav files from the microSD card, 22050 Hz, 16 bit, mono

•           12bit output

•           Adjustable sample rate (can go up to 44.1kHz)

•           Trigger inputs for playing 2 different samples with different settings

•           Each trigger input has a button to do the triggering manually

•           RGB LED to indicate page (on each page the two knobs adjust different parameters)

•           Crush distortion

•           Adjustable grain size and grain shift (positive and negative)

•           Digital attach decay envelope

•           Start and end point

•           No interpolation between grain jumps

•           Each sample has adjustable destination of CV input - it can go to any of the parameters

•           Grain sync - CV input can act as a trigger input for triggering the grain shift

•           Can recognise 35 different samples on the microSD card (they need to be specific name)

•           35 presets (all settings of the 2 samples is one preset)

•           CV input reacts in a 0-10V range

•           Handmade by Bastl Instruments in Brno, Czech Republic


Max Depth:35mm
Connector:PTC fuse and diode protected 10 pin power
Power:+12V: 50mA

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  • £199.00
  • Exc VAT: £165.83


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