The Prolight + Sound 2017 in Frankfurt saw the premiere of the new amp models with TFT display. The Hoellstern 20.4-DSP is very well known and delivers in the TFT version the same extreme output powers. The series is complemented by the 16.4-DSP-TFT and 10.4-DSP-TFT. Both amplifiers work perfectly at 4 x 2 ohms. The 10.4-DSP-TFT offers two modes with 4 x 4 ohms and 4 x 2 ohms.
