Compared with what you can get at kr 3,600, this is on the ambitious side for an OA-5 typ 1 unless it’s been properly restored and documented. Typical used pairs sit around kr 100–1,500 as unrestored originals, while well-restored examples can reach roughly kr 2,500–3,500, with only exceptionally upgraded pairs pushing higher.
That said, this is a classic Sonab with the big omni presentation that makes it so likeable: wide, room-filling sound, good bass for the size, and a very distinctive vintage character when the drivers and crossover are healthy. If the pair is clean, original, and has already had the usual service work done, it can still be a rewarding buy—just make sure the tweeters, surround condition, and crossover parts are all in order before paying top-end money for it.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.