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Booster Fat

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Booster Fat

100,00 €

Fat classic boost in a compact form

-+
Size
37x92x30 mm
Power
9 - 12 volt DC

A boost pedal is a simple yet incredibly effective tool—a classic trick used by professional musicians who want to cut through the mix and stand out. The CostaLab Booster Fat is a classic among classics, the pedal that started it all for Costalab.

As the very first chapter of our story, the Booster—now the Booster Fat—features unique characteristics: It offers a boost of up to +26 dB with a smooth and controlled high-frequency response and a full, present low end, designed to avoid unpleasant harmonics when pushing an amp.

Boosts are typically used in two ways: most commonly at the start of the signal chain to drive overdrive or distortion pedals; or at the end, to raise the overall volume and gain presence during solos.

Thanks to its clean boost range from 0 to +26 dB, the CostaLab Booster Fat can also be used in the effects loop as an attenuator for loud tube amps.

Like all Costalab pedals, the Booster Fat is built with premium components ensuring noise-free operation, and it features true bypass switching and an anti-pop filter for transparent, smooth performance.

 


One standout feature? Its extremely compact size: designed to fit effortlessly on any pedalboard—even the most crowded—without sacrificing space or functionality. Perfect for those who demand top quality without compromise, even in tight setups.

The pedal is powered by an external 9V DC supply with center-negative polarity and a standard 2.1 mm connector.

Current draw is less than 20 mA.

We recommend using the filtered and stabilized GIOVE power supply or an equivalent high-quality adapter. Using other power supplies may cause unwanted noise and risk damage.

When powered externally, the internal battery is automatically disconnected.

Dimensions: 37x92x30 mm excluding knobs and jacks.

 


Sound Demo

Recommended For

 

Pop - 80%
Blues - 80%
Rock - 100%
Heavy Rock - 100%

 






Video

dual-drive-side-dx.png
DUAL DRIVE
Lo stato dell’arte dell’overdrive
CUSTOM MUFF CLASSIC
The Sensitive Overdrive
Custom muff_classic_sx_MG_4118 copia.png
twin-compressor-side-dx.png
TWIN COMPRESSOR
La compressione della dinamica in due soluzioni, nel rispetto del tono e nella massima silenziosità
chorus_sx_MG_4126.png
CHORUSLAB STEREO
Stereofonia di fase
Formula Power
Il trasferimento di potenza ottimale
formula.png
Giove
Compatto ma con prestazioni da gigante
giove.png
Il cavo ad alta performance
Granturismo
granturismo.png
Natural Drive MK II
natural_drive_mkii.png
Più dinamica, più espressione, più headroom
BOOSTER PLUS
Piccolo nelle dimensioni, enorme nella resa
booster-plus-side-dx.png
CUSTOM MUFF EVO
L’originale ti ha portato fin qui, EVO ti porta oltre.
custom_muff_evo_sx_MG_4220_1.png
Formula patch
La qualità del cavo Formula patch per i migliori collegamenti in pedaliera
formula-path.png
bad-angel-side-dx.png
BAD ANGEL
La distorsione cosmica
MEDUSA
Semplifica il tuo wiring
medusa-sx.png
Adagio_italia_black.webp
Modulo di richiesta assistenza AGAGIO.