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· Super Moderator
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No I know that that has nothing to do with the pre amp, but I was just specifying that it also does not have one.
Okay, now I get it! :T

I doubt a grounding post on the preamp would do much good. I'm pretty sure it would have to be grounded to the receiver. The grounding posts receivers had had continuity with the chassis, so yes, any screw on the Denon should do the trick. They're often pretty short, so you might have to substitute one that's a bit longer. If you don't get a good ground, you'll get some noise or hum. The paint on the top panel (which is typically where you'll find the most accessible screws) might be preventing good contact, so you might have to sand a small pad down to the metal. If there's a rear-facing screw securing the top panel, that might be the one to use. It won't be noticable if you have to resort to sanding.

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