The OMNITRONIC S-15 is a phono cartridge system for beginners. It features a spherical pick-up system with an included stylus and is qualified for back-cueing. The cartridge is suitable for mixing and recommended for OMNITRONIC turntables. Specifications include a frequency range of 20–20,000 Hz, 47 kOhm terminal resistance, a recommended tracking force of 30 mN, a 5 mV output voltage, and a weight of 0.05 kg.