Most stereo equipment does bad things to our home's power lines. How do these problems affect sound quality and what can we do about them?

This viewer has been told to plug their headphones directly into their power amplifier for best sound. Is that good or bad advice and why?

It seems next to impossible that a single speaker driver can simultaneously reproduce so many frequencies. How does that work?

Want to build a great sounding interconnect for your high-performance audio system? Paul shows us how and why.

Most subwoofers target the home theater marketplace rather than 2-channel audio. So, what makes a subwoofer work best in one environment or another?

Amplifiers and stereo systems sound their best after they've been on fort some time and have warmed up. Why is this? Paul explains why.

At age 64 is it too late to get a high end audio system? His ears aren't what they used to be and the question is what's going to bring the best musical pleasure at this later stage of the game.

There's tons of great music available today so why is unamplified music seemingly the gold standard for reviewers? Why not include more?

Electronics adds unwanted harmonics to music and so designers work hard at eliminating them. Yet, some harmonics are welcomed as rich additions.

There are many ways to acoustically treat a room but one of the best is called a diffuser. What are they and when should be used?

Small ensembles and groups are easy to accurately reproduce in a home stereo setting, but what about orchestral music?

If musicians don't care about high-end audio, why is it audiophiles don't seem to care about quality recordings—some even listening to electronic music rather than classical.

Many recordings from this era were simply God-awful sounding: thin, lacking bass, and unlistenable, yet their music was great. What a shame! Why was this?