From the desk of Paul McGowan

Paul's Posts

Notes on music, gear, and the long pursuit of better sound. New most mornings.

Paul's Posts

More from Paul

  1. The cheapest tweakDavid Pogue, one of my readers, suggested to me "the cheapest tweak" that he's ever tried and I thought it might be interesting, this fine Sunday...
  2. Off my axisWhen I sit in the sound room for critical listening of course I always grab the "hot seat" because certainly in my system, that's the place...
  3. ScreechingToday I'd like to finish up on SMPS (switch mode power supplies) and how they work in a power amp as well as why we don't...
  4. Steady as she goesPerhaps the single biggest reason to use a switch mode power supply (SMPS) on a power amplifier is that the output of a properly designed one...
  5. When is less more?Yesterday's post explained a bit about how a switch mode power supply works - it uses a simply electronic switch to chop up the incoming AC...
  6. When faster is betterOf the two types of power supplies found on class D amps, linear or switch mode, the latter is taking over and the former is moving...
  7. Different strokesNo power amplifier is more sensitive to the incoming AC power as a class D and that makes it critical to run it off the best...
  8. DACS and Power amps are differentI think we all understand the importance of power supplies in audio equipment - as everything we listen to in our systems starts out as DC...
  9. The importance of supply and demandAll power amplifiers share something in common: they are big valves connecting the amp's power supply to the loudspeaker. How they do this is really all...
  10. ModulatorsIn our ongoing series on class D amps and listener fatigue I made the point (hopefully) that the input stage is a critical path element in...
  11. Class FI think one of the very basic problems with people's opinions on class D amps is the hierarchy of labeling - I mean, as a child...
  12. Slap and ShipI mentioned yesterday that preconceived notions and old biases die hard - and sometimes stay with us forever. It's something we're never going to fix as...
  13. Cherished beliefsOne of the notions alive and well with many in the high-end community is the idea that a class D power amplifier will cause listener fatigue...