Amplifier Adaptor 24V 2A VS 48V 1A difference when other conditions are the same?

[YeongGyun An]

First of all, I don't speak English very well. I use a translator, so please excuse any awkwardness.



Assuming all other conditions (parts and environment) are the same, the voltage and current of an amplifier will vary as follows

24V 2A and 48V 1A are both 48 watts, and I'm wondering if there is a real performance difference.


I apologize if this question has been asked before.
I'm Korean and my English is not very good, so I had a hard time finding it.

 

[antcollinet]

You've managed not to translate it:
***********

First of all, I'm not good at English. I use a translator, so please forgive any awkwardness.

All other conditions (components and environment) being equal, the voltage and current of the amplifier will vary as follows:
24V 2A and 48V 1A are both 48W in wattage, but I wonder if there is an actual performance difference.

I apologize if this question has already been asked.
I'm Korean and my English isn't very good, so I had a hard time finding it.
If you know of a related article or answer, please let me know.

 

[antcollinet]

You've managed not to translate it:
***********

First of all, I'm not good at English. I use a translator, so please forgive any awkwardness.

All other conditions (components and environment) being equal, the voltage and current of the amplifier will vary as follows:
24V 2A and 48V 1A are both 48W in wattage, but I wonder if there is an actual performance difference.

I apologize if this question has already been asked.
I'm Korean and my English isn't very good, so I had a hard time finding it.
If you know of a related article or answer, please let me know.

Depending on your speaker impedance you might need higher voltage, or higher current for maximum power.

Following is assuming a BTL class D amp.

For example with 8 ohm speakers, 24V 2A PSU can give you a maximum of 8W/channel (current limited - 1 amp/channel into 8 ohms)
With the same speakers - your 48V 1A supply would only give you 2W per channel (current limited - 1/2 amp into 8 ohms)
(neither of these supplies give anywhere near enough current)

With 4 ohm speakers the same supplies (also current limted) will give you only half those power ratings.

But lets now increase the current rating of each supply. Say 24V 10A and 48V 5A

Now with 8 ohm speakers you'll get 36W (voltage limted) with the 24V supply, 50W (current limited) with the 48V supply
with 4ohm speakers you'll get 100W with the 24V supply (current limited) and 25W (also current limited) with the 48V supply


So it is more complicated than you are thinking.

 

[YeongGyun An]

Depending on your speaker impedance you might need higher voltage, or higher current for maximum power.

Following is assuming a BTL class D amp.

For example with 8 ohm speakers, 24V 2A PSU can give you a maximum of 8W/channel (current limited - 1 amp/channel into 8 ohms)
With the same speakers - your 48V 1A supply would only give you 2W per channel (current limited - 1/2 amp into 8 ohms)
(neither of these supplies give anywhere near enough current)

With 4 ohm speakers the same supplies (also current limted) will give you only half those power ratings.

But lets now increase the current rating of each supply. Say 24V 10A and 48V 5A

Now with 8 ohm speakers you'll get 36W (voltage limted) with the 24V supply, 50W (current limited) with the 48V supply
with 4ohm speakers you'll get 100W with the 24V supply (current limited) and 25W (also current limited) with the 48V supply


So it is more complicated than you are thinking.

Sorry, I think something went wrong while translating with the translator and checking the translation with Chrome.

Thanks for the answer, so there is no difference in sound quality other than the output?

 

[antcollinet]

Sorry, I think something went wrong while translating with the translator and checking the translation with Chrome.

Thanks for the answer, so there is no difference in sound quality other than the output?

Correct - the output power will be influcenced by both the voltage and current rating of the power supply.

Sound quality will not normally be significantly impacted with a competent amp design..