READERS’ LETTERS: Switch mode versus traditional power supplies

A member writes: My new Class D GaNFET amp (Starkrimson Ultra) has dual mono SMPS that are deadly quiet (very black backgrounds), provide tremendous headroom (1000wpc clean peak power-4 ohms), and produce sonic realism and presentations that are jaw-dropping Live…all with a Total package weight of just 18#! 😉 —//— A member writes: Almost every […]

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READERS’ LETTERS: Does the CD layer of an SACD sound better?

A member writes: I think in order to store a DSD recording onto a disk it has to be stored on a SACD disk and played back on an SACD capable player otherwise if played on a standard CD player you would only hear the standard pressing and not DSD. —//— A member writes: SACD […]

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UNDERSTANDING: The importance of house wiring

Paul McGowan / PS AUDIO: When we built Music Room One we made a point of electrifying it properly: Dedicated circuits with heavy gauge wire. Had we the time and budget we would have also used grounded conduit as a shield against noise. The importance of a proper AC foundation cannot be understated. The two properties we […]

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READERS’ LETTERS: Understanding series and parallel speaker connections

A member writes: Damping Factor(DF) is equal to the impedance of the load divided by the out put impedance of the amp. For example if an amp has an output impedance of say0.1 ohms and the speaker is 8 ohms the DF is 80. If you have 2 8 ohm speakers in series the total […]

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UNDERSTANDING: Jitters

Paul McGowan / PS AUDIO Jitter, also known as timing deviation, is the variation in the time interval between two consecutive digital audio samples. This timing deviation can cause easily heard distortion in high-end audio systems including a loss of clarity, definition, and detail in the music, as well as a smearing of transients. Jitter […]

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UNDERSTANDING: High voltage and linearity

In a recent post we covered the fundamental differences between tubes and transistors and one of those we’re interested in is linearity. Tubes and transistors are only partially linear devices – which means they will not always faithfully reproduce a larger version of the input signal on their outputs. In our example yesterday we placed […]

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