Recent Audio Amplifier Articles
Audioholics Petition to Reopen FTC Final Amplifier Rule of 2024
![Audioholics Petition to Reopen FTC Final Amplifier Rule of 2024 Audioholics Petition to Reopen FTC Final Amplifier Rule of 2024](/static/ph.png)
Our petition urges the FTC to reconsider its August 2024 Amplifier Rule, which expands power output regulations to ALL audio products. The broad, retroactive scope and blanket approach risk industry disruption.
Switching Amplifiers: The Technology and the Issues
![Switching Amplifiers: The Technology and the Issues Switching Amplifiers: The Technology and the Issues](/static/ph.png)
This article started because a good friend of mine dropped a Panasonic SA-XR50 switch-mode amplifier to me for some basic bench test. This article will NOT be a review of that unit, but an …
Switching Amplifier (Class D) Basics
![Switching Amplifier (Class D) Basics Switching Amplifier (Class D) Basics](/static/ph.png)
Just today I read on an internet forum a post by a "hot" new manufacturer of class D amplifiers saying that "the only way to solve the interference problem is to put the amplifier in a completely …
The All Channels Driven Amplifier Test Controversy
![The All Channels Driven Amplifier Test Controversy The All Channels Driven Amplifier Test Controversy](/static/ph.png)
There has been a lot of controversy on many of the Internet forums regarding power capability of receivers when driving multi-channel speaker systems. Some argue that when a receiver is rated at …
Damping Factor: Effects On System Response
![Damping Factor: Effects On System Response Damping Factor: Effects On System Response](/static/ph.png)
Much ballyhoo surrounds the concept of "damping factor." It's been suggested that it accounts for the alleged "dramatic differences" in sound between tube and solid state amplifiers. The claim is …
The Truth About Digital (Class D) Amplifiers
![The Truth About Digital (Class D) Amplifiers The Truth About Digital (Class D) Amplifiers](/static/ph.png)
Firstly I'd like to point out that "digital amps" is a misnomer. There are two categories: Analog-controlled class D. Switching amplifiers…
Audio Amplifier Classes
![Audio Amplifier Classes Audio Amplifier Classes](/static/ph.png)
This is a brief article comparing the different classes of audio amplifiers. Class D vs Class AB and more types are discussed.