• New-in-box
• Bought two of these. Only keeping one
• Pictures are of the unit I’m keeping. Actual unit for sale is brand new, never taken out of the box, never touched
  
• Selling it as Mint to comply with Reverb’s listing policies. Only retailers can list items as Brand New.
  

From Frap Tools:

SAPÈL is an analog generator of random control voltages for Eurorack modular systems. It generates a wide variety of random values to add dynamics to your patches. Such values are sampled on analog thermal noise to guarantee the truest random generation.

Its main section is composed of two identical clusters of four Sample and Hold circuits each (yellow and green), generating as many different random values simultaneously.

Three of the four S&H circuits in each cluster provide stepped random voltages: two are quantized (in “notes”), and one is unquantized; the last S&H circuit features an integrator to generate a fluctuating stream of random voltages.

The three stepped voltage generators are synced, which means they will output three different values simultaneously. The yellow and green generators have two independent internal clocks, which can be replaced with an external one, or temporarily overridden via an external signal or the manual button.

Regardless of the clock used, each S&H cluster features two clock outputs: one that mirrors the input clock and another that provides a random clock behavior.

On the other hand, the fluctuating voltage generator is independent and has its own potentiometer to define its rate.

Each of the two S&H clusters samples its values from analog noise, thus providing a “true” and completely unpredictable randomness.

The second section of SAPÈL features four analog noise outputs derived from the analog noise used to sample random values.

Key Features

Two Analog True-Random Modules in One

Versatile Clock and Triggering Circuit (Yes, With Buttons)

Random Clocks

Quantized Random Voltages (Revisited)

Fluctuating Random Voltages (and Global Rate of Change)

True Unquantized S&H

The Colors of Noise

Tame Your Randomness: Probability Distribution

Size

18 HP

Depth

38 mm

Current draw

270 mA @ +12 V

170 mA @ -12 V

Recommended warmup time

30 min

CV input impedance

>90 KΩ

Clock input impedance

>90 KΩ (on positive pulses)

~30 KΩ (clamping negative pulses)

Built-in clock frequency (1)

~0.1–60 Hz

Quantized Random Voltages tolerance

<1 %

+/-10 mV

Clock output (period)

~2 ms

Clock output (amplitude)

~9 V

Sampling glitch

<400 µs

Blue noise output level

10 dBU RMS

White noise output level

10 dBU RMS

Pink noise output level

7 dBU RMS

Red noise output level

4 dBU RMS

Noise output global tolerance

+/-2 dB

(1) Lower frequencies (i.e., slower clocks) may be achieved with a negative CV used as modulation.