I put these in an old (circa 1968) Radio Shack Criterion 77 enclosures. All speakers were not working or bad. With some adjustment for the screw holes and soldering the leads, they sound good. Good as a $500 pair, no! Good as my $200 Polks I have in another room? Better. Good as my re-speakered Bose 301s? Yes. These speakers are now in the computer room connected to a 30 year old amp and tuner.All this is low, or no tech. I have no instruments, gear, testers, resistance indicators and assorted other stuff guys like to talk about. Just my ears, that are old enough to appreciate my first Living Stereo album I bought in 1958 at the age of 16. I still have it.

EXACT REPLACEMENT FIT WITH BETTER LOWS AND HIGHS.