First post. Seeking advice on restoration of four ancient 8 ohm two-way Lahti bookshelf speakers. One pair model U2 and pair unidentified. One pair 12x17 inches; other 12x9; all 4 about 7 inches deep. Design seems identical for all four. Paper tweeter-mid 3 inches diameter; woofer may vary. Can't get a good measurement of woofers without opening beautiful wood veneer cabinets.
I read somewhere these have mechanical crossovers, but not sure. All 4 work, but sound muddy compared to Polk Monitor 50s.
Thanks for any help, knowledge or suggestions.
Happy Holidays!