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Active Pickups & Input Overload [message #77] Thu, 22 June 2000 09:44 Go to previous message
artto
Messages: 9
Registered: June 2000
Junior Member
With the advent of many modern instruments having active pickups, you may experience input overload to the preamp section of 100, 200, 400 series amps before the power output section reaches full rated output. The newer models (150,250 etc.) apparently have attenuation on one of the 2 inputs on each channel. The way around this is to turn down the input gain (volume) on the amp & run your guitar/bass with the gain turned up. I know, it sounds illogical. But by turning down the input gain, the preamp's input overload capacity or "headroom" increases making it more tolerant of the higher input voltages/current that it recieves from "hot" pickups. You'll have to experiment to see what level balances yield the optimum results for your fav instruments. The only downside is that you'll probably go through the batteries faster.

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