These were, are, good speakers. They were made by Todds Hi Fi in Tingalpa. I bought the C216 centre speaker back in 1998 when I built my first HT. It was the 6.5 so might be a bit newer. I also bought there 802 bookshelf fot rears for. 5:1 They have worked perfectly.
i have not long stopped using them. When I got my Cat 12's I decided to go 7:1 and used the centre as a side surround, went and saw Todds, they havn't manufactured speakers for years, but managed to get 2 drivers and a tweeter and Mr M Todd (retired) built me a crossover to suit. I built a cabinet and I had a great 7:1 system.
I have now gone atmos and built 4 atmos speakers with 8" coaxial and only just finished my 4 new surrounds with the same 8" coax, Red Spade design.
so I got 20+ years from my Auditone speakers, so someone should take up this offer...