In the manual videos, I see that plugging in and adjusting your acoustic-electric's EQ is required. Does this device work for acoustics-only, as well?
TWA requires a signal from a pickup in order to function. For folks who have a totally acoustic guitar, we offer the B-FMP bundle with Fishman Neo-D humbucking soundhole pickup for steel string and the B-KNG bundle with Kremona NG-1 tie bar pickup for nylon string guitars.
Both pickups are easily installed yourself and will not require permanently modifying your guitar.