Endorphines Furthrrrr Generator


all analog signal path inspired by & based upon famous westcoast synthesis – a module in the tradition of harmonic generation based on additive synthesis.

2 discrete OTA triangle-core VCOs both with hard- (resetable) and soft- (inverting) syncs. The cores are self made custom encapsulated circuits with decent results of tracking (up to 6 octaves) as well as fine temperature stability.

multi-turn frequency knobs sweep up to 10 octaves

simple and efficient oscillator tuners

Selectable tracking (1 or 1.2 v/oct) by setting a jumper (we believe at last a few wigglers will appreciate that)

instant thru-zero linear FM with the Strong-Zero VCO core update

deep, metallic timbres, entirely new sphere of sounds from light whistles to weird noises

together with Grand Terminal creates powerful 2-operator modular FM-synth

Power consumption:
180 mA +12V
215 mA -12V
0 mA 5V
30 HP
26 mm deep


Do I need to recalibrate the module after swapping the Strong Zero VCO core?
Yes, it is recommended to fine tune the calibration after swapping the cores

How to calibrate the module? 
We suggest choosing a wave form with audible harmonics (square or saw) so you can indicate the tuning better in the lower registers. Find the lowest note – which will work responsively with tuners – around 220 Hz (=A3). This first ‚root A' should be tuned properly. Then play the „A“ note in higher octaves (A4, A5, A6, A8). Similarly you can apply all ascending C notes. Depending on the deviations of the notes – flat (b) or sharp (#) – turn the according trimmer on the backside of the Furthrrrr Generator 1–2 turns per time (or less) in one or the other direction. After one cycle of trimming from lowest „A3/220 Hz“ to highest „A8“ – return back to the lowest note, tune it precisely to 220 Hz and check the deviations of others. Repeat the procedure a few times to get close to a perfect tune. The trim pots have around 20 turns and after they will be turned up to infinite and it may feel at some point that you've reached to nothing – they produce a „click“ noise, when you reached the upper end. At this point it’s time to turn the trims back and try again.

Modulator sounds like modulated already? 
Turn the FM input knob of the Modulator fully CCW. If no signal is applied to the corresponding input, but the knob is in any position above CCW, the Carrier signal is used to modulate the Modulator.

How can I replace the panel with other color? 
Check the endorphines store and panels replacement guide. Also don’t forget the knobs and buttons.

Rainbow cable pinout. Side red/brown pair of pins always correspond to -12V similar as with typical gray ribbon cable.
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Status Pre-order
Manufacturer Endorphines
Functionality Oscillator VCO, Wavefolder
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