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HA13150A Audio Amplifier

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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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?
 

Ben King

Apr 4, 2017
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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?
i don't need the features, what exactly is the standby supposed to do?
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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i don't need the features, what exactly is the standby supposed to do?

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:

Ben King

Apr 4, 2017
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Did you read Steve's post, #4?

Bob
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.
 

Audioguru

Sep 24, 2016
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What else can I do to improve the quality of the sound?
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.
 

Ben King

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

Audioguru

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yeah i just hope that 12W is loud enough for me hehe
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.
 

Ben King

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

feels good

to the testing table (workbench) we go
 
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