Chip amp power single supply

targowes

Member
2022-05-12 9:32 am
Hi!
I apologize in advance for bad English. I need a power amplifier chip with a single supply.
Power battery 12v 7a/h
Technical specifications speaker
POWER HANDLING (RMS/MAX.) 100 / 180 watts
IMPEDANCE 4-8ohms
SENSITIVITY (2.8V/1M) 91 dB
FREQUENCY RESPONSE 32 - 32000Hz
I am considering tda8560. But perhaps there is something better? Interested in sound quality. Thank you!
 
TDA 7377 An Oldy but still a good one... 12 V single supply. It was intended for Car audio and.. Widely used., in a lot of Premium head units. as quad speakers or 2.1 (sub) setups
Sound is surprisingly Good. Wayyyy better sounds than the 3116 /8s things (from experience) :)
Buy a cheap a** Chinee Kit ~12$ and substitute decent quality parts Caps, Op amp etc and you will be surprised..
I was.
 
In principle leave unused outputs open, "connected to nothing", and inputs grounded.

In general given your humble 12V 7AH power source, use "Car Radio" type amps which expect that, not "regular Hi Fi" types such as TPA**** , etc.which expect higher voltages.

And be realistic, you can get not more than 15-16W into 4 ohm out of such low supply voltage.
 

targowes

Member
2022-05-12 9:32 am
In principle leave unused outputs open, "connected to nothing", and inputs grounded.
Thank you!
I am currently using a Chinese amplifier on tpa3116. The battery lasts about one month without charging. And this is good. But the sound quality is poor. That is why on the new system I want to do it differently. And get better sound.
Unless you use a boost converter
Im afraid that the converter will introduce noise