The MLO - Boost black line is a preamp/sound module and DI-box designed as a floor pedal effect. The unit can be connected directly to a mixing board on stage, recording studio or home Hi-Fi system, as to boost and modify the original signal of your instrument. Synonymous with all Taurus amplifiers, the Taurus patented MLO system provides exceptional sound creation flexibility and ease. The MLO assures optimal tuning of mid frequencies using only bass and treble potentiometers. This feature will also greatly benefit musicians from logical and effective tone regulation. Moreover MLO- equalizer will keep the volume level unchanged while low frequencies are added to your original sound. You will hear just tone changes, not its volume.