PAC AmpPro AP4-CH1 with 8.4 Alpine.

[Terpsmandan]

Has anyone out there with has added the AmpPro to their 8.4 hooked up an oscilloscope the line out to when and if the signal from the HU clips? I need to fine tune the Quart Stage 6 and I am going to check it but I was hoping some time else had done it so I had a benchmark. I will post here when I get it done.

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[Terpsmandan]

So the AmpPro gives you a really clean signal. 40hz and 1000hz test tones at -5db were clean all the way to 38 out of 38.

 

[Terpsmandan]

And at 0db (recommended by Quart tech support) the 40hz tone clips at about 35 on the HU and the 1000hz tone clips at about 37 on the hu.

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