[Darryl Ramm]

What are you doing in the Apollo Quad? Any Apollo console plugins running there? Which ones? Try removing all the plugins running in the Apollo console.

What sample rate?

Try turning off input delay compensation (in the Apollo console). Note that your symptoms are exactly what this would cases since IDC adds a delay whether any Apollo/console plugins/upsamplign plugins are in use or not.

You are absolutely certain that the latency is still there if you disable ADC in Pro Tools? (and thar be dragons lurking with ADC and Apollo). We need to be very careful with terminology here because there is both automatic delay compensation/ADC in Pro Tools and input delay compensation in the Apollo.

Darryl