Radial StageBug SB-4 DI Box 100014421 The front panel has 3-colour

The front panel has 3-colour LED meters

1 x DSP Rotary Encoder (MF-HF Correction)

Not so with PreSonus Eris-series active studio monitors

1/4" input jack for instrument and line-level sources

Radial StageBug SB-4 DI Box 100014421 The front panel has 3-colourRadial StageBug SB 4 Compact Active Piezo DI The StageBug SB 4 is a compact active direct box that has been optimized for use with piezo transducers, allowing upright basses, violins, cellos, and other acoustic instruments to be connected to the PA without compromising their tone or frequency response. The perfect companion for piezo instruments The StageBug SB 4 allows you to retain the natural tone of your piezo equipped instrument when amplified