Amp not enough power


Fellow Audiogoner's I had my Aragon 4004 Mk II amp tested by a tech and it only produces 203 watts @8 ohms and 380 watts @4 ohms. I remember this amp able to produce more rated power specially when it is driving difficult loads. Any suggestions or comments are welcome.
stateoftheart
You can use 22000uF/80V (more common value). You can find it in digikey.com Example here:

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=E32D800HPC223MD80M-ND

Another good source is mouser.com

example here: http://mouser.com/Passive-Components/Capacitors/Aluminum-Electrolytic-Capacitors/Aluminum-Electrolytic-Capacitors-Screw-Terminal/_/N-75hqz/

I'm not sure if you want chassis mount with one large nut or one that has two screws (digikey example). Check catalog picture before you buy.
Thank You everybody who contributed their knowledge regarding possible solutions to my Aragon 4004 Mk II amp. I will follow up this tag when I get the parts replaced and amp tested. Thank You again, Art