Subwoofers help our systems come alive by bringing the realism associated with live events into our homes and supplementing where our main speakers fall short. But they only go down so low. Is it possible to go lower than what a conventional subwoofer does? Enter the Rotary Sub.

Tweaks, vibration damping, resonant dots, all manner of audiophile madness pervade our industry. When voicing PS Audio's new designs, how much attention do the engineers pay to such high-end tweaks?

Winner of this week's Snake and Chicken award, this classic question comes alive once more as Paul adds another twist to the problem of measurements on equipment vs. how our ears measure sound quality. If you want to know what's really happening this is a good one to watch.

We hardly see stereo stores anymore and the stores that used to carry equipment seem to have vanished and not be replaced. What's happening? Are smartphones and MP3 players taking over and decimating the good sound possible through high-end audio?

We're familiar with two-way, three-way, even coaxial single driver speakers, but 2.5-way speakers? What the heck is that? Paul gives us the lowdown on this rare breed of speaker that may just be more marketing than technical.

If you want to use a single preamplifier to feed two separate power amplifiers, how do you properly split the preamp's output signal with losing any quality?

At one time sonic holography was all the rage but now you hear nothing much about it. How does Bob Carver's Sonic Hologram generator work, what did it do, and how did it do it? Paul also shares his own patented invention, the Spatial Projector.

In the US we rely upon 60Hz for our power and in other parts of the world there's 50Hz and double the wall voltage. If we had our choice what would be the best sounding frequency and voltage for high-end audio?

CDs are read by lasers and their optical outputs seem like they should be connected directly to the DAC via the optical cable. Is that true? And, if not, how does it work?

Servo woofers are rare these days and this questioner wants to know how they work, why more companies don't use them, and if PS Audio would consider bringing them back to high-performance audio.

Paul's been an audiophile for longer than many of his listeners have been on the planet. When did he first know the bug had bitten and what was the story of his introduction to high-end audio?

Does an object like a stereo rack or television placed between two speakers ruin its ability to image properly?

If you record an MP3 file unto a CD does it take on the quality of a CD or is there more going on than meets the eye or ear?