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.

Quicksilver Integrated Amplifier - € 1.830,-  #  £ 1.526,-  #  $ 1.995,-  # Output Power 2 x 20 Watt

Quicksilver KT 150 Mono Power Amplifier - € 3.572,-  #  £ 2.979,-  #  $ 3.895,-  ( pair ) # Output Power 100 Watt / 8 Ohm

Quicksilver HORN Mono Power Amplifier - € 1.440,-  #  £ 1.201,-  #  $ 1.570,-  ( pair ) # Output Power 25 Watt / 8 Ohm

Quicksilver V4 Mono Power Amplifier - € 7.000,-  #  £ 5.839,-  #  $ 7.635,-  ( pair ) # Output Power 170 Watt / 8 Ohm

Quicksilver Sixty Watt Mono Power Amplifier - € 2.838,-  #  £ 2.367,-  #  $ 3.095,-  ( pair ) # Output Power 60 Watt / 8 Ohm