The EBS Session 30 features an 8” speaker and an effective EQ with controls for Gain, Bass, Treble and Volume. It has a mini-tele Aux Input for an external sound source and a Headphone Output for quiet late night rehearsals at home. It is equipped with a professional quality XLR Output making home or studio recording as well as front of house connection easy! New speaker on the MARK II version increases the volume and offer better bass response. The weight on MARK II is reduced by 10%.