Straightening Bent Fins


I purchased a huge Krell amp that arrived yesterday! (Used) It all seems OK, but it shifted in the box, and one of the fins was bent. You may as well know it was the one in the front! This is a 130 pound amp, so it's got a pretty good curve in the fin. I know this is a fairly common thing to happen during shipping. It's not severe enough that I don't want the amp, I'm not gojng to send it back over one bent fin. But I ask everyone out there, has anyone ever had any luck straightening a fin? Any advice on the best way to go about it? I don't want to break it off, or scratch it up. Any experiences good or bad, let me know what you think. 
alpha_gt

Showing 1 response by yioryos

Hi Alpha_gt
Ok,first I want to say your writing style is very funny ,and yes I mean it in a good way. You think positive and that’s good.
In regards to the bend fin, because I work with aluminum material and know how it behaves. Understand that the fin on your Krell amp is made of aluminum and then black anodized. The anodizing process makes the aluminum harder but also brittle. So even if you succeed in bending it back to straight ,I am afraid the anodize will be affected and will show discoloration at the very least,most likely a white shade where the metal got stressed.Have you ever seen pictures of big Krell class A amps with blue fins from the heat discoloration?
If it was me and I cherished the amp I would go straight into ordering a new fin. By the way my dream amp is a Krell FPB-600 but out of my price range in my area.
Thanks
George
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