Boulder 3050 Mono Power Amplifier - $ 306.000,- ( US.Dollar )  #  1.500 Watt / 8 Ohm - * Peak Power 2.100 Watt / 8 Ohm Class A

Dan D*Agostino Relentless EPIC 1600 Mono Power Amplifier  - $ 349.500,-  #  1.500 Watt / 8 Ohm - 3.000 Watt / 4 Ohm

Constellation * Statement * Mono Power Amplifier  -  $ 350.000,-   #  1.700 Watt / 8 Ohm - 3.200 Watt / 4 Ohm

GOLDMUND Telos 4800 Mono Power Amplifier € 532.500,-  # Maximum Power 1.050 Watt / 8 Ohm 

GOLDMUND Telos 8800 Mono Power Amplifier € 774.500,-  # Maximum Power 1.400 Watt / 8 Ohm 1 % THD