Edirol FA-66 to late 2016 Mac

You could either try a Thunderbolt 3 to Thunderbolt 2/1 adapter. and Apple does make a Thunderbolt adapter with a firewire port on it. It's not Thunderbolt 3, just Thunderbolt. Buying and connecting the two should give you the result you're looking for

good luck

John B

Today I finally bought my 16" MacBook Pro and also the TB2 -> TB3 (USB-C) adapter + the Firewire to TB2 adapter and connected my old Edirol FA-66. Surprisingly it all works very fine, the Edirol can be powered by the Macbook through the USB-C interface with 2 adapters in between. Also latency is great, Logic shows 10ms and when recording guitar with Amp designer and input monitoring enabled, I do not notice any latency, it nearly plays like a "real" amp. Hope that helps people thinking of such combinations that they do not have to worry.

I have mine connected with the same setup and the Edirol FA-66 works fine but I have to use a mains adaptor to power it as it doesn't power up via the MacBook Pro (13" 2018)

What system are you on? I just updated to Catalina and my FA-66 doesn't work anymore... still digging on this...

My FA-66 is working fine on Catalina, just tested it on an old Mac Mini late 2012. I‘m about to upgrade to a new Macbook and fear if it still works there with 2 adapters in between...

It is working finally.