The Surdo is a Brazilian bass drum usually made of wood or metal with skin on both sides.

  • Price: $14.99

  • Kontakt VST / AU / AAX

  • 512 Samples (144 mb)

  • Available as Direct Download

  • Update Log: V1.5
    – New Graphical Interface
    – Single Hits rebuild with 02 Channel Buses
    – New Single Hits Surdo Added (Surdo 4)
    – New .nkm Multi Ensemble 2
    – New .nkm Death Cluster
  • Full Retail Version of Kontakt 5.6 (or later) Required

Listen the Sounds of Surdo


No hundreds of effects and loads of knobs which you don’t use. Each effect has been made to enhance the sample intelligently.

Ability to download

PC 2.0Ghz+, 2GB ram
MAC 2.0Ghz, 2GB ram


512 Samples. Recorded using Apogee converters and preamps. Everything recorded at 44100Hz, 24bit.

Fully Dynamic

The samples offer from the slightest touch to the strongest attack providing more freedom to create dynamic rhythms and beats.

Perfect Ambience

Use the convolution reverb and create a perfect environment. Unlike other Brazilian libraries each instrument is recorded with dry ambience preserving the real character of the instrument.

*Kontakt Full

Full Retail Version of Kontakt 5.6 (or later) Required.


Muletone Audio presents the Brazilian Series. Instruments from Brazil with a unique focus in their playability and their musical language. With an entirely Brazilian production muletone explores each instrument in minute detail. Unlike others libraries the Brazilian Series brings a real depth and perspective of Brazil’s instruments respecting their individual characteristics.

The Surdo is a Brazilian bass drum usually made of wood or metal with skin on both sides. Traditionally used in samba and other derivative styles the surdo has been within this niche since the carnival in the 1920’s remaining relevant to this day in typical modern musical styles of Brazil.

Made with goat’s leather or synthetic (plastic) the larger Surdo with a deeper sound has roughly 75cm (29,5 inches) in diameter and the smaller around 40 cm ( 16 inches) with a higher pitch.

The Surdo was played by Muletone Audio developer Leandro Abreu and musician Felipe Ramos, a percussionist from Minas Gerais, Brazil.

Assembled Loops

  • Afoxe (165) bpm
  • Cells (145 bpm)
  • Cells and Fills (145) bpm
  • Pagode (95 bpm)
  • Pagode baiano (145 bpm)

Rhythmic Loops

  • Brazilian Rhythms (148 bpm)
  • Cells (80 bpm)

Single Hits

  • Surdo 1
  • Surdo 2
  • Surdo 3
  • Surdo 4 (NEW)
  • Surdo high
  • Surdo Ensemble (Multi)
  • Surdo Ensemble 2 (Multi) NEW
  • Death Cluster (Multi) NEW

“In terms of quality, the Muletone Audio library is the best, having deeper sampling than anything else out there for the equivalent instruments and also offering different samples based on how long of a sustain is desired”

Mark Schmieder - Composer - California, US

“If you love World percussion virtual instruments and you like Brazil then you need to know Muletone Audio because they make the very best ones.”

Reid Rosefelt - NY Film Publicist - Brooklin, US

About Drums:
“Great Drum Tool! Both excellent sounds and patterns for brazilian type of songs.”

Markus Roesch - Musician

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