PS Audio founder and CEO, Paul McGowan, writes a daily blog: short, informative, fun, often controversial, but always interesting. Subjects range from personal stories, how to setup your system, news of the day, streaming, vinyl, tubes, transistors, loudspeakers, holographic imaging and more. Kind of like the Car Talk of audio. Not much is sacred, and there’s rarely a mention of our own products.
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Paul's Posts
Op amps and power supplies
In yesterday's post we covered the problems with IC op amps concerning their huge amount of gain. Problem is, you simply cannot control how much gain they have and therefore...
Sounding harsh and compressed
Yesterday we pointed out that the vast majority of IC op amps were not designed to be high performance audio amplification devices, but rather general purpose functional amplifier blocks with...
The good, the bad and the ugly
With apologies to Clint Eastwood and any fans of the Italian cowboy genre known as Spaghetti Westerns, let's take a look at what's good, bad and downright ugly about IC...
Just a touch of gain
In yesterday's post we covered a tough subject: the differential pair that serves as our input to the op amp. From here it gets a lot easier so if you've...
Diff pairs
Note: Some images originally referenced in this article are no longer available. Yesterday's post covered common mode rejection, how it works what it is and what benefits it has for...
Common mode rejection
In yesterday's post we saw how easy it is to design with an IC op amp. All you need are two resistors and two 9 volt batteries and you've got...