My Kenwood SP-23, 8 ohm speaker designed specifically for the TS-450, TS-570D and TS-690 Kenwood transceivers is for sale. This speaker is mint, no marks/scuffs, and performs well with any 8 ohm output load impedance. Price, $60 shipped to the CONUS. Tnx for reading, 73, Joel AE2JL