T+A Press ST 21

Its impressively deep bass ensures that even the lowest frequencies are presented clearly, while the midrange section handles challenging passages freely and naturally, and the treble range is transparent and silky smooth. It has been decided to adopt an advanced three-way system incorporating two long-excursion bass drivers, a high-amplitude midrange unit, and also the low cut-off frequency avoids phase shifts and jumps in the frequency response.

All cones have been constructed from different thicknesses of aluminum using specially calculated embossing tools, resulting in lightweight cones that are very strong and robust. Powerful magnets are also used, while the magnetic and coil systems are of a highly refined design, and constructed using premium materials. The result is that these high-end drivers are capable of generating enormous high levels combined with extraordinary dynamism and speed. A precisely calculated crossover unit based on low-loss components ensures perfect control of all drivers in their optimal working range, and surprisingly good radiation characteristics. The crossovers have separate ground systems for the bass and mids, and this makes them perfect for bi-wired setups.