TDA7520 equivalent ? the part is obsolete now

Does not count for the various TDA AB chips. Fine HiFi as pointed out. In every corner of amplifier technology there can be found good stuff be it chip amps, discrete built stuff, class A/AB or class D.

You probably mean the extreme high power class D amplifiers with internal DC-DC converters.
 
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Does not count for the various TDA AB chips. Fine HiFi as pointed out. In every corner of amplifier technology there can be found good stuff be it chip amps, discrete built stuff, class A/AB or class D.

You probably mean the extreme high power class D amplifiers with internal DC-DC converters.
No I am referring to all car amps
They have an internal step up dc to DC converter that takes the 12VDC and generate a dual voltage that powers the amp circuit
I would replace that converter with a mains transformer and a diodes bridge and listen
 
No I have just bought a complete Alpine car amp for 30 euro said to sound good
I just want to bypass its internal supply
However I will ask in the relevant forum or in the Lounge
I agree it's a weird idea
I have no clue about the outcome
If not I would decide if to act or not