Schertler Stat-C-Pro, a set combining the STAT-C cello sensor and the YELLOW-Single preamp, electrostatic transducer for cello, high feedback resistance, impressive bridge sound. The Schertler Yellow Single Pre-Amplifier features modern and sophisticated design, build in a robust and light aluminum case, maximum two input channels for all kind of microphones and pick-ups, maximum four output lines with multiple connections, headphones output, send & return for effect loop, four band EQ and extra dedicated filters on the main channel to ensure wide range of tonal controls and maximum flexibility, hi-end pure class A electronics for the best possible sound Performance, made in Switzerland.