[LAU] MOTU Ultralite AVB - possible to configure two connected devices without 430 EUR switch?

Hanns Holger Rutz contact at sciss.de
Wed Oct 24 11:30:03 CEST 2018

Hi Fernando,

so would that imply that if you buy a new box (latest hardware), you
cannot install the old firmware that allows usage of all I/O in CC mode?

best, ...h.h...

On 24/10/18 02:09, Fernando Lopez-Lezcano wrote:
> On 10/17/2018 10:44 AM, Fernando Lopez-Lezcano wrote:
>> On 10/17/2018 07:31 AM, Paul Davis wrote:
> ...
>>> I don't know how "latest" you mean. I bought mine well over a year ago,
>>> and it has had this behaviour since I bought it. I was not convinced
>>> that it was the MOTU's fault, or rather that it just need some USB audio
>>> quirk added to stop it from happening.
>> Well, "latest" actually is old old. For the 24ao/24ai/16A cards 1.2.8+
>> supported 64 channels over USB with the class compliant driver and
>> worked fairly well, 1.2.9+ killed that feature (which was _added_ to the
>> originally released firmware - that feature enabled me to use the card
>> for my purposes, killing the feature made the card useless for me unless
>> I downgraded). You might want to try 1.2.x in your card.
> Correction (just now testing again):
> For the UltraLite AVB, at least for my very recent hardware version,
> firmware 1.2.8 and 1.2.9 do not install (the Motu claims it is too old
> for the card, try with a newer one).
> Firmware 1.3.2+520 does install, and it looks like it does not have the
> "input channels hop over groups of 8 every once in a while" feature. I
> presume 1.3.4+ breaks usb input.
> -- Fernando

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