thank you all for your help, but i'm really interested in why the speaker makes noise, and how to stop this.
Nigel mentioned above i havnt connected my power amps correctly, could someone please tell me what i have done wrong.
I notice i havnt put polarity of conection on my drawing, the speaker and 2nd op amps inputs are both connected to positive input incase that helps diagnosis?
when sceadwian says they are high noise, what does this mean? Does it mean the common mode rejection ratio is small?
I built this to test out op amps after reading about them, so if you could explain any answer i would be gratefull as opposed to just recomend a certain part here etc.
Thanks again