Its about 35 watts per channel and you can pick them up on ebay for peanuts
http://www.audioreview.com/mfr/cambridge-audio/integrated-amplifiers/PRD_115658_2717crx.aspx
http://electronics.search.ebay.co.uk/cambridge-audio_Amplifiers_W0QQsacatZ14970
Surely an old Arcam would be better?