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The newer CM7777 preamp (only one input, the older one had two) is not doing so well. A friend bought two and both were defective. The seller did admit that Channel Master quality had gone way down. I have an older CM3671 that stayed up for hurricane Isaac with no damage. The best performer I have is a reproduction Finco 400-A. It's hugh and hard to put up but incredible for DXing. The CM4251 is second to the Finco for UHF. It has no VHF (it's a big parabolic). When putting a new antenna up I use the Winegard amplifiers. They seem to work good.
Waiting to go back on the mast is a Wade (Jerrold) VIP-307 vhf only. Another monster!
Has anyone compared the build quality of the newer CM3671 to the older ones?
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