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What sounds like an alternator whine: Pyramid suppressor makes it worse?
I have got what sounds like an alternator whine but it only comes on badly
when the cassette unit of my in dash Sony is being used and then it is only really bad whtn I turn the air conditioning on: I tried putting a Pyramid NS21 20 amp high suppressor Isolation transformer just between the phono imput and the amp which is directly next to the battery in a hole below the floor of the trunk in my car but it makes it about 3000% worse. Is there some trick to using these suppressors? Must it be nowhere neat the amp or no where near th e battery or something or is this just a loust suppressor or a faulty one? (The instructions don't say anything about it needing to be grounded or anything so I tried just hanging it loose on the floor of the trunk to see what effect it had on reducing the whine and as I say it made the sound completely unbearable) Licensled to Quill |