Again thank you all for the help . The cheap speakers I found were on ebay
Skytec 902.245 8 Inch Replacement Speaker Driver 100W.
CCA0183 - Skytec 8" SP800 Voice Speaker Driver 100W
A 100 watt 8 Inch 4 Ohms replacement chassis speaker with a stiff suspension and vented magnet producing an excellent sound quality. Ideal for use in sound combinations too.
Features
4 Ohms impedanceVented magnetsStiff suspensionSpade terminals
Specifications
Peak power: 200WPower max: 100WSpeaker size: 8"Impedance: 4 OhmFrequency response: 65Hz - 4kHzSPL @ 1W/1m: 89dBVoice coil: 38mmMagnet weight: 20 oz
Any more thoughts
Are they a waste of money . Thanks again for all your help . Rog