Check the listing for details. Arcas Compressor Sustainer Guitar Effect Pedal. Condition: New. Listed at 59.99 USD. #html-body [data-pb-style=IYE6QTF]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}The Maestro Arcas Compressor Sustainer pedal provides excellent versatility. It offers both transparent, light compression as well as heavy, tight compression. It delivers enough sustain and level compensation to become a go-to workhorse for any situation. This all-analog pedal boasts a two-position Mode toggle switch for increased sonic versatility. The LO mode is less sensitive to pick attack, while the HI mode is more sensitive to pick attack. The intuitive 3-knob control layout lets users quickly dial up the desired Sustain (amount of gain applied during compression), control the.