Differential inputs on preamps and amps? What's that mean and why would we care?

With the loudness wars on high music's dynamic range has been compromised. Can we build a dynamic range expander to solve the problem?

Is it the system, the brands you buy, how you dress, or the color of your hair? Or maybe none of these. Paul gives his opinion on what it takes to become an audiophile.

Some speakers just sound great while others appeal not. What makes the difference in the way speakers sound?

If you go to a HiFi tradeshow your likely to see the stereo equipment between the two speakers, but then we hear that's bad. What gives?

Some speakers are more sensitive to amplifier power than others. How does this relate to frequency response?

If you have a small listening area such as a bedroom or smaller apartment, how can you maximize sound quality?

Chris gives us the lowdown on room tuning and how to spend our money wisely.

When designing speakers or electronics, does PS use off the shelf or custom parts?

If you're going to buy used speakers what should you look for?

Every manufacturer says their speakers have the correct frequency response yet they are all different. What's the truth?

It seems one of the great mysteries in subwoofer setup has to do with subwoofer phase. Chris helps us understand.

Tweeters look different than woofers, but why? Aside from their obvious size differences, what's the big difference between the two?