Balanced Audio Technology VK-75 SE (Special Edition)
Fully balanced, zero feedback topology.
Featuring a sophisticated automatic bias control circuit for each individual output tube! to keep things in order without the maintenance of conventional tube amps.
75 watts per channel 
Input stage tube compliment:
6SN7 x 6
Driver stage tubes:
6H30 Super Tubes x 2
6V6 x 2
Output power tubes:
6C33 x 4
Weighs in at about 48kg so no shipping please – Collection or delivery only.
MSRP: $8,500 USA
New replacement model: $18,000 USA – https://balancedaudio.net/amplifiers
Yours at R45k
https://www.hienaudio.com/vk-75se-amplifier/
https://hometheaterhifi.com/volume_7_4/bat-vk-75se-tube-power-amplifier-12-2000.html
https://www.stereophile.com/content…k-6075-power-amplifiers-bat-vk-75-and-vk-75se