I did run three Presonus Firepod 10 cards simultaneously some years ago. Worked just fine, You could search for another firestudio live second hand. Firewire stuff tends to be quite cheap nowdays.

/Anders

On Tue, Jul 13, 2021, 17:40 Bent Bisballe Nyeng <deva@aasimon.org> wrote:
On 11.07.2021 19.15, David Kastrup wrote:
> Bent Bisballe Nyeng <deva@aasimon.org> writes:
>
>> Hello
>>
>> I have two Presonus FireStudio Live firewire interfaces working in
>> daisy-chain mode for a total of 16 channel pre-amped inputs and they
>> are working great :-)
>> I am however sometimes running short on channels and thought it might
>> be worth looking into adding a cheaper interface, such as the
>> Behringer ADA8200 Ultragain, and hook that up to one the the Presonus
>> interfaces through ADAT to ensure full sample synchronization.
>> I have not been able find anything information on how/if this kind of
>> setup would work on linux and the ffado website seem particularly
>> sparse with information these days.
>> Does anybody have a similar setup and can share some insights into
>> what works and what doesn't - then it would be much appreciated :-)
>> In particular I would be interested to know how/if the extra channel
>> from the ADAT interface would show up in jack?
>
> Aren't they showing up in Jack already?  With the interfaces I use, the
> channel assignments are fixed even without ADAT synchronisation.  The
> numbers may differ when switching between 48kHz and 96kHz though since
> then channels are getting bundled.  The ADA8200 probably would not do
> that.
>

On 11.07.2021 18.39, Max wrote:
 > That should work as expected. The Behringer ADA8200 Ultragain is a great
 > device, and I see its unconfigurability as an advantage. In fact I
 > swapped one of two firefaces (UFX+800) for an ADA8200 because the many
 > ways to configure this setup wrong were endless.

Thank you for your feeback both of you.
After fiddling even more around in the user manual I found out that the
Presonus FireStudio Project interface doesn't even have ADAT, so my
problem sort-of went away on its own (replaced by a different one
though; how to get extra channels).

Cheers // Bent
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