Metasonix RK6 Resonant Lowpass Filter LA-1A one oscillator to provide the

one oscillator to provide the harmonic

Like the RS-260

Programmable ﾑNaturalﾒ or ﾑLaboratoryﾒ sine wave modes

60Hz recursion speeds allow more fluid feedback

Metasonix RK6 Resonant Lowpass Filter LA-1A one oscillator to provide theThe RK 6 is a TOTALLY UNIQUE product, one that has never existed before. It is a Sallen Key lowpass filter with a feedback loop, to allow it to resonate. There are no integrated circuits or transistors in the signal path. It is a PURE TUBE design, the sort of design that might have been invented in the 1950s if anyone had dared to create a turnable lowpass filter for musical uses before Moog and Buchla. It even uses a coupling transformer to provide