Active sub crossover class A
• active lowpass subfilter• balanced mono output
• decoupled channel summation
• zero stereo impairment
• Filter Class A with JFet cascade
• separate signal (0) and shield mass (S)
• Level and frequency via switches
• zero potentiometer, hum, noise
• sub driver: 100 x 58 mm, high 12 mm
• sub driver 68€buy
Crossover with supply
• sub driver - supply: 100 x 100 mm, high 40mm• sub driver - supply class A 109€buy
Crossover with supply and trafo
• sub driver - supply - trafo: 100 x 175mm, high 40mm• sub driver - supply class A - trafo 148€buy
PCB without components
• Board without components: 100 x 175 x 1,6 mm• Board, heat sink, circuit diagram 29€buy
The heat sink is included, all other components are freely available. The board is suitable for transformers of Talema type 70063K (25VA) or 70040K (10VA). Maximum flexibility is provided by separating the corresponding areas. With separation of the active crossover you get e.g. the High-End Class A power supply for preamplifiers.