According to the Crutcfield Catalog and website the following are true 6.75"
speakers (not 6.50" with adapter plates):
Polk db6750
Pioneer TS-A1781R
Infinity 652.7i
Kicker KS65
Kenwood KFC-C1739ie
Boston Acoustics SX65
Ron
2k Dak
This archive was generated by hypermail 2b29 : Mon Jan 01 2007 - 14:53:53 EST