@ grannyring The best advice you can get on interfacing to the Sonare Optical module is by Sonare themselves. Jesus and Barrow, from Sonare participates on the Audiophilestyle.com Sonare Forum.
The reason it would be smart to email them or Small Green Computer (reseller of Sonare gear) is that the compatibility of the SPF ports with the Sonare Optical module has not been tested extensively. This is new gear for them. The links I provided for Ubiquiti gear was shown to work on the review I linked to. I would guess that your gear, which is well known, has been tested with the Optical module.
The great thing about this gear is that it is not too expensive, other than the top of line single box Signature Rendu SE Optical.
https://audiophilestyle.com/forums/forum/24-sonore-sponsored/
The reason it would be smart to email them or Small Green Computer (reseller of Sonare gear) is that the compatibility of the SPF ports with the Sonare Optical module has not been tested extensively. This is new gear for them. The links I provided for Ubiquiti gear was shown to work on the review I linked to. I would guess that your gear, which is well known, has been tested with the Optical module.
The great thing about this gear is that it is not too expensive, other than the top of line single box Signature Rendu SE Optical.
https://audiophilestyle.com/forums/forum/24-sonore-sponsored/