[Boatanchors] 6x9 Oval Speaker - Replacement?

[Mark Johnson]

Team,

I'm having problems find new replacement 6x9 oval speaker replacements. My
Heath SB-600 speaker is old and raspy. I bought a newer 6x9 speaker rated at
120 watt, but the radio won't drive it enough even though the new speaker is
an 8 ohm speaker. 

Anyone have a source for replacement 6x9 speakers designed for old
receivers? I searched the usual places, but nothing.

Thanks!