Recently got a pair of 1979 Philips 489 speakers as a kind donation. 100% original and in pretty good (cosmetic) condition. These were the first Philips speakers that use a bass port
PHILIPS 489 HiFi Speakers - Catawiki
Specifications of PHILIPS AH489 Philips
Philips 22-AH-489 Loudspeaker - On Demand PDF Download | English