Class D amplifiers do require low pass filters to remove out of band power supply switching noise from passing to the speakers. This is also true of AB amplifiers leveraging high speed switching power supplies such as class H amplifiers (Emotiva and Outlaw for examples). Whether the filtering and related phase shifting is audible is a separate matter, likely depending on the listeners age and hearing loss that is inevitable with age and high sound pressure level damage to our hearing.
Bandwidth Limitations Of Class D Amps??
.
Audiogon member Kijanki said :
.
Audiogon member Kijanki said :
Some people argue that class D, as good as it is for the money, cannot really compete with best traditional SS amp. I can see that, especially with still limited bandwidth...What are the bandwidth limitations of class D amps, and is it audible?
.