Other Parts Discussed in Thread: TPA3136D2
On Audio power amplifier replacement following parameters are considered as below:
Audio power amplifier needs to drive 8 ohms speaker that is external to the system, Existing component TDA2614 supports 6 W to drive 8 ohms Load, THD: 0.5% with supply voltage of 28 Volt.Alternate components TPA1517 can support only 4.5W to drive 4 ohms load , THD:0.2% with supply voltage of 14.5V, if watt is increased to 6 W than THD is more <10% for 4 ohms load ( the lower the better as it results original of the sound) .With these comparison new part can support 4 ohms load while we have 8 ohms speaker existing in the system, generally having higher impedance should not matter but will not be too loud in speaker system, also if we have higher impendence speaker we have cleaner sound but lower sound volume. But if we need louder system we need to have lowest impedance allowed, with these data can I use TPA1517 for 6 W with THD more to connect to 8 ohms speaker, will it have more distortion and not serve the purpose. Please post your suggestion on using the above TI componentTPA1517.
