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HA13150A Audio Amplifier

Discussion in 'Audio' started by Ben King, Jul 15, 2018.

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  1. Ben King

    Ben King

    54
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    Apr 4, 2017

    Attached Files:

  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,309
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    Jan 21, 2010
    They are both inputs. Page 8 has an example of how to use the mute input.

    I imagine you could do something similar for the standby input.

    Do you want to use either feature?
     
  3. Ben King

    Ben King

    54
    2
    Apr 4, 2017
    i don't need the features, what exactly is the standby supposed to do?
     
  4. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,309
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    Jan 21, 2010
    If you don't need the features, tie both inputs to +5V.

    Standby puts the amplifier module into a low power mode (effectively turns it off).
     
    Last edited: Jul 17, 2018
  5. Ben King

    Ben King

    54
    2
    Apr 4, 2017
    I guess no one has any suggestions...
     
  6. BobK

    BobK

    7,676
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    Jan 5, 2010
    Did you read Steve's post, #4?

    Bob
     
  7. Ben King

    Ben King

    54
    2
    Apr 4, 2017
    Oh I meant anyone else have suggestion or things to point out. You've just pointed something out, so...
    I am mainly wondering if I filtered out radio frequencies and other stuff right.
     
  8. Ben King

    Ben King

    54
    2
    Apr 4, 2017
    What else can I do to improve the quality of the sound?
     
  9. Audioguru

    Audioguru

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    Sep 24, 2016
    Its datasheet shows that it produces low distortion if you keep the output per channel less than about 12W per channel into 4 ohm speakers. Simply turn down the volume until you do not hear any distortion.
     
  10. Ben King

    Ben King

    54
    2
    Apr 4, 2017
    yeah i just hope that 12W is loud enough for me hehe
     
  11. Audioguru

    Audioguru

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    Sep 24, 2016
    24W with low distortion sounds only a little louder than 12W at low distortion. 120W with low distortion sounds twice as loud as 12W with low distortion.
    Because our hearing's sensitivity to loudness is logarithmic.
     
  12. Ben King

    Ben King

    54
    2
    Apr 4, 2017
    that just made decibels, a LOT simpler

    feels good

    to the testing table (workbench) we go
     
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