First of all, this is my first time trying something like this. I got my hands on a broken Logitech Z623(some of the electronics got fried) and I'm planning on using just the subwoofer as a speaker. I've been looking for a bit and found this amp that seems good to me. Now I'm not sure what to power it with. Perfect would be a mobile solution(battery), so I can bring this speaker places. But all I've been finding requires a cabled PSU(which can't be right lol).
Does anyone know how to properly power that amp? Sorry for the noob question
Does anyone know how to properly power that amp? Sorry for the noob question
Although the link in your message is not working (atleast not for me) I deduce from the link that you probably mean an amplifier module with a LM3886.
In the datasheet for the LM3886 it is explained how to calculate the needed supply voltages and current. If you would want the maximum power out of it (about 60 Watt into 4 Ohm) than the power supply has to be able to deliver close to 6 A of current. The writing on the circuit board at the power supply terminal says ± 28 Vdc, meaning that you need to have a power supply that supplies 2 x 28 Vdc.
I leave it to others to comment on the possibilities of having a battery powered power supply that is capable of providing this ± 28 Vdc, up to 6 A at peaks.
LM3886 datasheet
In the datasheet for the LM3886 it is explained how to calculate the needed supply voltages and current. If you would want the maximum power out of it (about 60 Watt into 4 Ohm) than the power supply has to be able to deliver close to 6 A of current. The writing on the circuit board at the power supply terminal says ± 28 Vdc, meaning that you need to have a power supply that supplies 2 x 28 Vdc.
I leave it to others to comment on the possibilities of having a battery powered power supply that is capable of providing this ± 28 Vdc, up to 6 A at peaks.
LM3886 datasheet
Welcome.
Your link was corrupt (text mixed with URL, http is out of style, and quote-marks).
[URL='http://HiFi LM3886 TF Mono 68W 4Ω Audio Power Amplifier Board AMP 50W/38W 8Ω https://banggood.onelink.me/zMT7/f0bedc59']this amp[/URL]
Let's try this:
Link works for me.
Your link was corrupt (text mixed with URL, http is out of style, and quote-marks).
[URL='http://HiFi LM3886 TF Mono 68W 4Ω Audio Power Amplifier Board AMP 50W/38W 8Ω https://banggood.onelink.me/zMT7/f0bedc59']this amp[/URL]
Let's try this:
Link works for me.
That LM3886 chip is really aimed at wall-power systems. Car-sound chips are more aimed at battery systems. 20 Watts in 4 Ohms on 12VDC is easy. Higher powers suggest the booster-amps the boom-cars have in the trunk.
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