Paul's Posts

More from Paul

1. Taking out the garbageThe last thing you want to do to a power amplifier is put something with impedance between it and the loudspeaker. It's one of the reasons...March 12, 2013
2. Fooling our ears and eyesYesterday we mentioned that DSD and Class D operating systems were similar in that each can be played directly into the loudspeaker without conversion; unlike digital...March 11, 2013
3. Class DSDWho knew so many of you were happy reading about common mode rejection? Thanks for the kind notes about yesterday's post. Today let's focus on what...March 10, 2013
4. Common modesYesterday we started our series on Class D amps and how they work. We went through the all important input stage but before we get moving,...March 9, 2013
5. Class is now in sessionSorry about the headline, just couldn't resist. We are going to start delving into the working of Class D amps, also incorrectly known as "digital amps"...March 8, 2013
6. How may I serve you?If for some reason your power amplifier puts DC into your loudspeaker you'll wind up letting the magic blue smoke out and killing your loudspeaker. "Magic...March 7, 2013
7. Getting straight inYesterday I promised we'd jump into Class D amps and how they work - but before going there I wanted to take a short detour -...March 6, 2013
8. Getting in the wayWe've been focusing on amps and their design philosophies as a precursor to the release of our new power amplifier this summer. I thought it instructive...March 5, 2013
9. CompromisesDesigning any product for consumer electronics is a series of design choices - better known in some circles as compromises - giving one thing up for...March 4, 2013
10. How old dogs codeWhen we start a new product at PS Audio it almost always involves code to make it work - even simple things like turning the power...March 3, 2013
11. McIntosh transformersYesterday's post covered output transformers on tube power amplifiers and why they were needed. It also covered the fact that IMHO transformers are the last thing...March 2, 2013
12. TransformersIf I had to think of the worst thing I might add to a power amplifier, an output transformer would be right up there - yet...March 1, 2013
13. HeadroomYesterday we covered one of the advantages of the higher power supply voltages afforded by tube circuits: linearity. Today we'll jump into the second advantage of...February 28, 2013