Msuwendy Posted September 12, 2020 Share Posted September 12, 2020 Hi everyone I need help, the subwoofer is very quiet when we plugged it in the pre out section of a tube integrated amp, the vol is at 75% and still very quiet, we connect it with RCA cable pre out (black and red) to sub input Another thing that we realize when we off the amp, the sub seems to act weird like there is a signal sending out from the amp to sub in high freq for 5 times then its gone Quote Link to comment Share on other sites More sharing options...
willland Posted September 12, 2020 Share Posted September 12, 2020 2 hours ago, Msuwendy said: I need help, the subwoofer is very quiet when we plugged it in the pre out section of a tube integrated amp, the vol is at 75% and still very quiet, we connect it with RCA cable pre out (black and red) to sub input Maybe a voltage sensitivity matching issue between the integrated amp's preouts and the subwoofer's input. Bill Quote Link to comment Share on other sites More sharing options...
Msuwendy Posted September 13, 2020 Author Share Posted September 13, 2020 11 hours ago, willland said: Maybe a voltage sensitivity matching issue between the integrated amp's preouts and the subwoofer's input. Bill Hi Bill Is there anyway to improve it? And yes after long play i hate how it shuts down, might just return the amp Quote Link to comment Share on other sites More sharing options...
willland Posted September 13, 2020 Share Posted September 13, 2020 4 hours ago, Msuwendy said: Hi Bill Is there anyway to improve it? And yes after long play i hate how it shuts down, might just return the amp Not really sure but others might know. This should explain some. https://www.audioholics.com/audio-amplifier/amplifier-voltage-gain DC offset could explain the low volume levels and shutdown. Bill Quote Link to comment Share on other sites More sharing options...
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