Diving in deep
Vitus Audio RS-100 Stereo Power Amplifier Depth. That’s what you get with a good A/B amp that you just can’t quite touch with even the most excellent Class D. Sorry, it’s the truth. Most Class A/B amps on most loads at most volumes stay in Class A anyway, and there’s no contest. Sure, you can optimize the path of the power to your Class D monoblocks, use isolation bases to minimize vibration, place Shakti Stones or other EMI/RFI filters over the PCBs, put on your voodoo suit and hail the demon gods of audio to deliver Nirvana. Or you can plug in a high quality A/B amp and never look back. That pesky switching frequency and the usual harmonics of Class D just end up getting in the way of the sheer magic that is possible with the world’s best A/Bs. Even if you eliminate the upper harmonics and create a harmonic structure similar to tube amps, as PS Audio does with the Stellar S300 amplifier I use for testing, you can’t quite match the subtle details an A/B brings that...