Some speaker cables cost thousands of dollars and the most expensive ones have fancy and exotic looking metal control boxes attached to them. Are they to hide the snake oil or do they actually do something?

How much do the clocking systems in digital audio affect sound quality? Paul answers this sometimes technical question as simply as he can.

Many people believe the systems in their automobiles outperform those in their homes and, for some, that is likely true. But why?

We’ve all seen the old bass and treble controls on vintage (and sometimes modern) equipment. What do they actually do and how should they be used?

If your system isn’t delivering what you hoped for in sound quality should you add a subwoofer or a preamplifier?

What happens when a power amplifier is at maximum output level and there’s not speakers connected? Is it dangerous or alright to do?

How important is the first watt of a power amplifier’s performance. Does its quality have any impact on the last watt?

It seems like a passive preamplifier would have the least amount of sonic coloration. So, are they the best to use over an active device?

In the early 1970s high end audio was so much better sounding than today and easier to put together a great system. Is that true and if so, what’s happened?

When audiophiles talk of three dimensional holographic imaging what is meant by that and how can it be achieved?