The A4 is only slightly larger than a standard solidbody bass and much lighter. The 2-chambered body design found in all of the A-Series instruments is also at work in the A4. This design resists feedback as well as the negative effects that loud stage levels can have on top vibration. Vibration of the solid cedar top is further controlled by a cello-inspired bracing pattern. The custom A-Bass electronics include an under-saddle ribbon transducer and preamp by L.R. Baggs.
- Rock maple neck - Ebony fretboard - 16" fingerboard radius - 34" scale - 1-1/2" nut width - 2-chamber silverleaf maple body - Solid cedar top - L.R. Baggs ribbon transducer and custom preamp - Volume, mid, treble and bass controls - Natural semi-gloss finish