There are more types of coin materials than Carter’s got pills. Bamboo, plastic, paper, and metal are among just a few that make up the speaker cones we depend upon in our stereo systems. What differences do these materials make in our music?

It used to be that loudspeakers consumed the bulk of our stereo budget. Is that still true? Had digital changed the landscape enough that it’s no longer accurate?

Can you use multiple pairs of bookshelf speakers to make a line source? Yes! And Paul shows us how.

It seems like it should be easy to propagate proper bass in a small room. Harder in a bigger room. So is there any reason to use a subwoofer in a room that is small?

One way to save money and get good performance from a loudspeaker is to purchase and assemble a premade kit. There are companies that specialize in speaker kits. This listener wants to know what are the advantages.

Clean power is essential for high-performance audio and there are a number of ways to achieve it. Is an isolation transformer one of those means that works? And what are the ups and down s of using them?

Some amplifiers have specific impedances they work best at. What’s the reason for this and what happens if you mix and match different impedance speakers and amplifiers?

3d printing seems all the rage these days. How has it impacted audio and will we eventually see audio products crafted from 3d printers?

When it comes to enjoying mono recordings is it best to listen on mono speakers or can you have a good experience using the phantom center channel of a stereo system?

If we’re going to build a stereo system how much do we have to spend and on what? Paul helps walk us through the costs involved.