Previo Alta Gama a Valvulas

Preamplifier HP 200 Production: 1992 - 2001 (HP 200 with optional Phono MM/MC); 1994 (HP 200 with external Power Supply); from 1995 (HP 200 Phono MK2) The tube preamp HP 200 was produced from 1992 to 2002. Its concept is based upon the OCTAVE hybrid circuit in connection with the combined power supply control electronics. Specialization of the hybrid circuit enabled an amplifier concept that needs an operating voltage of only 150 V. This allowed development of an economical version of the successful HP 500. The device has a multi-level soft-start electronics which excludes switching and operating errors. In case of mains oscillations or power breakdown, the device switches off. For tube exchange, no adjustment is require