10-25-2012, 06:09 AM
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Join Date: May 2008
Location: Reading, PA
Originally Posted by rockytopcummins
I hear it's very necessary if you're going to be running any additional power.
Not really...the dead key can be turned down to match the amp internally, the variable just makes it easier to do, but I find it also makes it easy to bump the power up and overdrive the amp if you not paying attention (read: don't have a meter in line).
My first Cobra 29 didn't have a variable, I just had the DK turned down and matched for the amp I was running...did the same for a Uniden Grant because I didn't want to hack it up to add a variable.