The drolo Stamme[n] is a granular micro looper and reverb freezer, handmade in Belgium by drolo. What began as a request for a pedal that could loop short samples with tap tempo has grown, over four versions, into a multi-mode machine that drolo describes as a "micro looper / time stretcher / glitch delay / tape machine / infinite sustainer / reverb"1. Delicious Audio calls it "a rather unique, Belgium-made granular looper/creative reverb with Tap Tempo that's now in its fourth version"2.
The pedal packs eight operational modes into a single control knob and a pair of footswitches2. Four are looping modes (Micro, Stretch, Glitch Delay and Tape) and four are hold modes (Swell, Pitch, Filter and Stutter)3. The knob does something different in every mode, which is what makes the pedal compact on a board and dense to learn.
The eight modes and the control knob
The eight modes split into two families. The looping modes (ML, SL, GL, TL) record and manipulate short samples of your playing. The hold modes (SW, PT, FL, ST) are reverbs that can be set to sustain infinitely, or nearly so: drolo notes they "do start to degrade slowly after a few minutes"1. One knob and the mode setting carry all of the sound shaping, so its job changes completely from mode to mode.
| Mode | Name | What the control knob does |
|---|---|---|
| ML | Micro looper | Sets recording length, or the tap tempo multiplier after tapping |
| SL | Stretch looper / reverse | Left to noon stretches the recording; noon to right plays samples in reverse order2 |
| GL | Glitch delay | Left to noon fades in a second delay line at twice the speed (one octave up); noon to right increases feedback onto itself1 |
| TL | Tape loop | Sets playback speed and direction1 |
| SW | Swell | Defines the fade speed2 |
| PT | Pitch | Changes the pitch of the reverb2 |
| FL | Filter | Tilt filter2 |
| ST | Stutter | Adjusts the rate of the chopping1 |
Two modes deserve a closer look at the knob. In PT mode the reverb's pitch moves through fixed steps from left to right: minus 1 octave, minus 7 semitones, minus 5 semitones, unison, plus 5 semitones, plus 7 semitones, plus 1 octave2. In ST mode the reverb gets randomly chopped off, and the knob adjusts the rate of that chopping1.
Looping modes: Micro, Stretch, Glitch Delay and Tape
ML (tap tempo micro looper) is the mode the whole pedal grew from. The length of the recording can be set manually with the control knob or by tapping the tempo with the tap switch1. There is a real difference between the two approaches: adjusting the tempo manually with the knob while a loop is playing changes the pitch and content of the loop in a destructive manner, whereas after you tap a tempo, the knob instead selects a multiplier, with its range divided into four sections: 8x, 4x, 2x and 1x1.
SL (stretch looper / reverse) records audio that gets looped and can be time stretched. From the left to the noon position the knob increasingly stretches the recording; from noon to right it plays the samples back in reverse order2.
GL (glitch delay) is the mode for unstable, broken-sounding repeats. The delay time randomly changes and the repeats will randomly loop1. The knob brings in a second delay line running at twice the speed, pitched one octave up, from left to noon, then increasingly feeds that line back onto itself from noon to right1.
TL (tape loop) records short loops of tape that can be played back at a speed and direction set by the control knob1. The knob sweeps through seven distinct playback states, left to right1:
| Direction | Speed | Pitch |
|---|---|---|
| Reversed | Double | Octave above |
| Reversed | - | Fifth above |
| Reversed | Half | Octave below |
| Forward | Normal | Unison |
| Forward | Half | Octave below |
| Forward | - | Fifth above |
| Forward | Double | Octave above |
History and versions: from Kent Sommer's idea to V4
The Stamme[n] grew out of an initial idea from Kent Sommer, aka UglyCasanova and also of Digital Flora FX. He wanted a pedal that could loop short samples and also had tap tempo functionality, and drolo developed the concept into an official product4. Delicious Audio's 2021 coverage describes the same origin, noting that in the end it became an official drolo product after starting as a custom project2.
Over the years the pedal evolved from that single tap tempo looper idea into the micro looper, time stretcher, glitch delay, tape machine, infinite sustainer and reverb it is today4. The version covered here is V4, the fourth iteration, as of Delicious Audio's September 2021 update2.
The Stamme[n] has evolved over the years into a micro looper, time stretcher, glitch delay, tape machine, infinite sustainer and reverb, and it is now in its fourth version2. It began as an initial idea from Kent Sommer, also known as UglyCasanova and now of Digital Flora FX, who asked for a pedal that would loop short samples and had tap tempo; drolo developed it into an official product2.
Availability in the US
[!NOTE] The Stamme[n] is a granular micro looper and reverb freezer, priced at €250.00 (VAT tax added at checkout for EU countries), weighing 0.5 kg4.
Direct from drolo, the Stamme[n] is listed at € 250.00, with VAT added at checkout for EU countries4. It is made in Belgium2, and drolo describes it as a granular looper and creative reverb2.
Videos
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Questions
Where can you buy a drolo Stamme[n] in the US?
drolo sells the Stamme[n] in the US and Canada through soundshoppe.nyc while stock lasts. Preorders are not taken, but restocks occur regularly. The June 18, 2026 restock completely sold out, so availability comes and goes in batches rather than staying continuous.
How long does a frozen reverb last on the Stamme[n]?
The hold modes are reverbs that can be set to sustain infinitely, or almost. drolo notes that the sound does start to degrade slowly after a few minutes, so a held note will gradually change character rather than staying perfectly frozen forever.
How does tap tempo work on the Stamme[n]?
In ML mode you tap the tempo with the tap switch. The control knob then defines a tap tempo multiplier, with its range divided into four sections: 8x, 4x, 2x and 1x. If you set the loop length manually with the knob instead, turning it while a loop plays changes the pitch and content of the loop destructively.
Does the Stamme[n] keep sounding when bypassed?
In SW (swell) mode, yes. To let the audio fade out appropriately, the output of the effect remains connected even when the pedal is bypassed, so the swelling reverb tail decays naturally instead of cutting off dead.
Sources (4)
- Stammen, drolofx.com
- Drolo Stammen V4 Glitch Pedal, Delicious Audio, 2021-09-10
- The Best Glitch, Stutter And Granular Pedals In 2024, Delicious Audio, 2024-05-27
- STAMMEN, drolofx.com