To give you an indication of the prices, I have converted the US.Dollar price to Euro's ( € ) British Pounds ( £ )  # You must take into account additional costs such as Import duties, Taxes ( VAT ) and Shipping costs.

Sanders Sound Systems Preamplifier - € 4.588,-  #  £ 3.825,-  #  $ 5.000,-

ESL Mark II Amplifier - € 5.505,-  #  £ 4.590,-  #  $ 6.000,-  #  2 x 400 Watt / 8 Ohm - 2 x 780 Watt / 4 Ohm

ESL MK II Monoblock Amplifier - € 11.010,-  #  £ 9.180,-  #  $ 12.000,-  ( p.pair ) #  1.200 Watt / 8 Ohm - 2.000 Watt / 4 Ohm

Magtech Amp - Power Amplifier - € 6.422,-  #  £ 5.355,-  #  $ 7.000,-  #  500 Watt / 8 Ohm Channel - 900 Watt / 4 Ohm Channel

Magtech Amp - Monoblock Amplifier - € 12.845,-  #  £ 10.740,-  #  $ 14.000,-  ( pair ) #  1.600 Watt / 8 Ohm - 2.000 Watt / 4 Ohm 

for more information about Sanders Sound Systems Amplifiers & Loudspeakers go to: https://sanderssoundsystems.com