Complex sentence: The company is known especially for its DigiTech Whammy, first manufactured in 1989, which made foot-controlled pitch shifting effects possible and the Time Machine digital delay series and IPS33/IPS33B Smart Shift harmonizers.
Split into simpler sentences: The company is known especially for its DigiTech Whammy, first manufactured in 1989, which made foot-controlled pitch shifting effects possible. It is also known for the Time Machine digital delay series and IPS33/IPS33B Smart Shift harmonizers.