TOPIC:

I have a 2X4HD, the plugins on my MacBook Pro can connect it.
I have just bought a  Mac Studio. The 2X4HD can play music via USB cable, but the plugins cannot connect it via USB cable.
It said: 'Cannot connect to DSP, please plug in the board'

The macOS is 13.1.

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When I download Adobe air from Harman and install it. It is ok!.

 

It sounds like your 2x4 HD firmware (distinct from the plugin) may be out of date to me. Adobe Air is no longer necessary, and you shouldn't be using it at all as it's a security risk.

support.minidsp.com/support/solutions/ar...hat-about-adobe-air-

 

After reset my MacBook Pro, I reinstall the plugins .
The plugins can not connect my new 2X4HD .
I have three 2X4HDs. The newest firmware is 1.18! 
 

Are you saying you have three 2x4 HDs and that you can connect to two but not the third? Is the newest one possibly on a different firmware version? I think I've read that some have shipped with a new version.

Edit: actually you won't be able to tell the firmware version of the new one if you can't connect. My guess is it is. I'd suggest you contact miniDSP support using the link at the top of the page. I have a guess at a solution but only they could assist with it.

Plugins on my clean Mac OS can not connect any HD until Adobe air runtime from Harman has been installed.

wu10335 wrote:

Plugins on my clean Mac OS can not connect any HD until Adobe air runtime from Harman has been installed.

Sorry, I'm not following you but I suggest you contact miniDSP official support using the link at the top of the page.