It's a complete pedal for your bass. Look at this brief description and you'll realize that you can't live without this pedal:

2 channels (Clean and Drive) that can be changed in a single step;
Independent Bass, Mid and Treble control;
Volume controls for each channel, so you can set each channel with its gain;
3-position treble adjustment switch for the Drive channel;
The Drive channel also has a Drive addition control in addition to the volume control.;
P10 Input and Output, but if you need to plug it directly into the desk or audio interface you can use the Balanced XLR output;
Ground Lift button to eliminate squeaking.

Fuhrmann

Demo by  Duca Tambasco

Demo by Fernando Barbosa

Product Page

Bass+ Preamp

Die Streicher sind ein Pedal für akustische Instrumente, hauptsächlich für die Violine. Bei Strings handelt es sich um ein Pedal mit 2 Effekten, Reverb und Chorus, das von Violinisten, Saxophonisten, Flötenspielern usw. verwendet wird. Für den Anschluss an den Tisch oder eine Audioschnittstelle sind die Strings in einem ausgewogenen Format ohne XLR-Format wie beim P10.

Strings is a pedal designed for acoustic instruments, primarily guitar. Strings is a pedal with two effects: Reverb and Chorus, and has been used by violinists, saxophonists, flutists, and more. To facilitate connection to a mixing board or audio interface, Strings has a balanced XLR output in addition to a 1/4-inch output.

Demo by Miguel Bestard

Demo by Alexandre Almeida

Strings

The pedal that simulates the famous TapeDelays.
This pedal was designed to be simple and objective in its use. Perfect for those who want to add a pure Delay to their setup.

ANALOG DELAY has 3 controls so you can adjust the effect perfectly and achieve that desired delay.

Review by Forum Cifra Club

Demo by Nando Moraes

Demo by Barramusic TV

Analog Delay

The Bass Compressor is a compressor specially developed to work well with bass and mid-bass.

Demo by  Ernani Júnior

Bass Compressor

DR01 - Signature Marcos de Ros pedal. Camouflaged pedal for use in the Battlefield. This pedal is built for War.  If you are looking for the final word in outrageous gain, this is the pedal for you and that’s just Channel 1. It boasts two separate channels of sonic mayhem. The second channel drenches the tone in a searing, thick, yet still well defined Hyper Gain sound. This is the Signature pedal of Axe Man Extraordinaire, Marcos De Ros.

Battle Power