I am new to audio amplification so forgive my inexperience here... And I may be wayyyy off track... But from looking through datasheets of Audio Amplifiers (looking to use the TPA2012), obviously as the supply voltage decreases, so does the output power capability.
I guess I have 2 questions really. My first is, to amplify an audio signal from an mp3 player/ipod that is connected to a set of 8 ohm speakers, what sort of power output would be necessary to get the output to a 'reasonablly loud' state - i understand that is very vague. But currently the speakers connected are very quiet - so would just like to boost the volume!
Secondly, if the amp is powered via batteries, obviously the voltage of the battery is going to drop when they are 'running out' so will this limit the output power of the amplifier as its supply voltage is dropping? Meaning this would have a direct impact of the maximum volume outputted from the speakers. If so, ideally I wouldnt want the output to get quieter as the batterys are dying?
Hopefully that all makes sense. Any help on this would be great.
Thanks!!!
I guess I have 2 questions really. My first is, to amplify an audio signal from an mp3 player/ipod that is connected to a set of 8 ohm speakers, what sort of power output would be necessary to get the output to a 'reasonablly loud' state - i understand that is very vague. But currently the speakers connected are very quiet - so would just like to boost the volume!
Secondly, if the amp is powered via batteries, obviously the voltage of the battery is going to drop when they are 'running out' so will this limit the output power of the amplifier as its supply voltage is dropping? Meaning this would have a direct impact of the maximum volume outputted from the speakers. If so, ideally I wouldnt want the output to get quieter as the batterys are dying?
Hopefully that all makes sense. Any help on this would be great.
Thanks!!!