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YSun.7
YSun.7
Visitor II
January 29, 2022
Solved

TDA756x Is safe to drive speakers with lower gain?

to decrease output noise, can I use 16db gain to drive 4ohm or 8ohm speaker with tweeter in low volume. 

"Selectable gain 26 dB /16 dB (for low noise line output function)" in datasheet but no only shown.

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    Peter BENSCH
    Peter BENSCHBest answer
    ST Technical Moderator
    January 31, 2022

    Welcome, @YSun.7​, to the community!

    If I understand your question correctly, you want to reduce the output noise by setting gain to 16dB?

    Yes, the output noise will be reduced, but also the volume by (16dB-30dB) = -14dB.

    Regards

    /Peter

    In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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    1 reply

    Peter BENSCH
    Peter BENSCHBest answer
    ST Technical Moderator
    January 31, 2022

    Welcome, @YSun.7​, to the community!

    If I understand your question correctly, you want to reduce the output noise by setting gain to 16dB?

    Yes, the output noise will be reduced, but also the volume by (16dB-30dB) = -14dB.

    Regards

    /Peter

    In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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