The original SLO pre-amp captured the iconic Super Lead Overdrive sound and quickly became the most sought-after module in the Synergy community. The new SLO II offers three distinct upgrades to the original module design. The combination of these improvements, allows for more precise and extended tonal sculpting, making this module the most versatile SLO preamp ever. THE SLO HISTORY Soldano’s Super Lead Overdrive 100 (SLO-100) set the standard for modern high-gain amplification. In 1987 Seattle-native Mike Soldano built one of the first high-gain amplifiers with searing harmonics and the perfect balance of gain, sustain and tight touch response. The SLO completely changed what players came to expect from amps. While the SLO’s drive channel found it backing up renowned rock guitarists like Mick Mars (Motley Crue), Warren de Martini (Ratt), and Howard Leese (Heart), its clear and tactile clean channel and bluesy crunch also made it the first choice for non-metal stalwarts, such as Mark Knopfler, Eric Clapton, Warren Haynes, Gary Moore and Lou Reed to name a few. Today, the amp’s tone and steadfast reliability remains a go-to for thousands of guitarists around the world. VERSION II UPGRADES The original SLO pre-amp captured the iconic Super Lead Overdrive sound and quickly became the most sought-after module in the Synergy community. The new SLO II offers three distinct upgrades to the original module design. Independent EQs  – The SLO II offers a dedicated three band EQ