High-end tube amplifier representing Luxman's heyday in the mid 1970s which quite probably existed in fifty slightly different versions and also had LuxKit equivalents. Primary is made of four windings wound together to reduce leakage and distortion inherent to Class AB or Class B amplifiers ; the GX100-3.6 transformer can deliver more than 35W at 35Hz. 8045G power triodes. Specially developped in collaboration with NEC. In Class B, the power dissipated on the plate can amount to 60W at 1Khz, thanks to its structure and high heat-dissipation metal.
Made of two 8045G triodes on which a negative feedback loop is applied. Of the cathode-follower type, uses newly developped 6240G double-triodes. To rise the gain obtained by the driver stage, another 6240G double-triode is used here, with a 200V tension applied to the plate. A 5dB NFB is applied between the cathode and the 4th winding of the output transformer.
Its first stage uses a 12AX7 (ECC83) double-triode ; the second stage, DC-coupled with the first, gives an out-of-phase signal which is sent to the driver stage. GX100-3.6 Quadra-Filar output transformer (specially developped for the 8045G), C1744 low resistance choke self, two 220µF electrolytic caps. After this stage, the filtered tension is applied to a bridge rectifier. And then... wonderful music musically reaches your ears - providing you have two MB3045 for the latter is a monoblock. The cost in 1976 is 128,000 ¥.