Martin MA175T Authentic Acoustic Lifespan® 2.0 Guitar Strings 80/20 Bronze, Custom Light 11-52 Roll Music The 8ox is entirely passive

The 8ox is entirely passive and as such does not require any power supply

and you can even play WAV

Billy Cobham Drums was recorded by legendary producer-engineer

Frequency response 1 dB

Martin MA175T Authentic Acoustic Lifespan® 2.0 Guitar Strings 80/20 Bronze, Custom Light 11-52 Roll Music The 8ox is entirely passiveMartins next generation Lifespan 2. 0 strings are engineered using a new, patented technology only available from Martin. This technology was developed to protect the core wire and the wrap wire to prevent corrosion without compromising tone the single most important attribute of the guitar strings. Authentic Acoustic Lifespan 2. 0 strings look better, sound better, and feel better, providing a smooth playing experience that reduces finger drag.