Original wires and Ceramic Tweeters of my RX-CT 900
New stylized tweeters installed into original tweeters nests
Many boomboxes of 80's have a Ceramic Twееters.
High impedance , narrow frequency range and very low output
make them useless if we're talking about HQ sound.
Try to disconnect those original ceramic tweeters and you'll find
absolutely no difference in sound quality of your machine.
So why manufacturers installed them in 80's?
It was just a marketing trick.
Manufacturers could legally claim it as a Two-Way Speakers System ,
but all those models had very sensitive low impedance
wide range drivers, and those were good enough to match
promised specs values (up to ~ 14 - 16 kHz)
without any tweeters.
In fact , all those ceramic tweeters were decorative.
I have replaced my original ceramic tweeters with
high output piezo tweeters on my RX-CT900
and after the replacement
it's about 19 kHz /measured/ and it makes cents!
So if you want to discover what your boombox amp
can do for real - i recommend that to you.
Any suitable car tweeters are good as well.
And don't forget about capacitors!
Happy Listening !
And check those
Nice looking Reel Cassette Tapes from $12