Tech 21 Double Drive

Sweep method through Anagram FX Loop Profile based on sample settings in user manual https://www.tech21nyc.com/t21manuals/DoubleDrive-OM.pdf L1 refers to level at 1 o'clock; L2 - 2 o'clock; L3 - 3 o'clock The Tech 21 Double Drive captures the lush, muscular power amp distortion of both Class A and Class A/B tube amps. Instead of just blending these tones, it feeds one into the other for massive ‘cascading’ distortion and limitless tonal variation. The signal path of Drive A runs into the signal path of Drive A/B. This results in an electronic multiplication, rather than addition, of the amount of distortion to achieve a cascading effect. Even Harmonics - Max DRIVE A DRIVE A controls the amount of Class A power amp output stage distortion (like Vox AC30®-style amp), rich in even harmonics. The amount of harmonics is dynamically controlled by the input level and their ratio by how hard you pick. Odd Harmonics - Max DRIVE B DRIVE A/B controls the amount of Class A/B power amp output stage distortion (like Fender®/Marshall®-style amps), rich in odd harmonics. Mixed - 70% both DRIVE A & DRIVE B