Tagged: Class D

Negative feedback cuts amplifier distortion but divides designers. Here's what it does, why some statement amps avoid it, and what it means for you.

Film soundtracks push amplifier channels harder and longer than stereo music ever does. Here's why that matters for topology, power supplies and what actually fails.

Damping factor sounds like a real engineering number, and it is, but past a certain point it stops telling you anything useful about how an amp will sound.

Forget the tribal warfare. Here's how to actually match valve, solid-state and Class D amps to your speakers, your room and your budget.

At the top end, matching an amplifier to a speaker is about current, impedance behaviour and damping, not the number on the spec sheet.

A speaker's nominal 8-ohm rating hides impedance dips that punish some amp topologies more than others. Here's what the graph actually shows.

Negative feedback gets blamed for "solid-state sound" more than any other design choice. Here's what it actually does, measured, and why the folklore doesn't hold up.

Choosing a headphone amp isn't just about budget. Nell Shaw explains how power, output impedance and circuit topology interact with your specific headphones.

The power supply is the foundation of every amplifier, yet it's rarely discussed. Sofia Laurent explains what the topology choices actually mean for sound quality.

Damping factor and output impedance appear on every amp spec sheet, but few buyers know what they're really measuring. Here's what the numbers mean for your speakers.

Valve, solid-state or Class D — each topology has real tradeoffs that affect what speaker you can drive and how it sounds. Priya Anand breaks it down honestly.

Purifi's 1ET9040BA claims distortion below 0.00017%, yet a Stereophile follow-up found defective units. What does state of the art really guarantee?

The $15,000 Marantz Model 10 won EISA's top integrated amplifier award using Class-D. Here is what Purifi modules changed and who should audition it.

Orchard Audio's Starkrimson 25 Mono shows GaN amplification is still being pushed hardest by small specialists, not big brands. Here's what it means.