Sleeper JBL models....80s-90s

Outside of the collector models that seem to fetch high prices...any "sleeper" jbl speakers from this era that really shine...<300
the tik series (danish), the 4400 series monitors(especially the bigger ones), the 4312 mk IV (available outside the u.s. only), the L series, century golds (limited editions), lots of others.
hls 610 (original srp around $300)--greatest cheap speaker in the world
S/2600 S/3100