Dan's Blog

The 'Best' Source Input? - Part I

This post for is the data junkie who likes objective comparisons—in this case using quantitative measurements to indicate which DAC source input of...

Sound Quality & RF Noise - Out of Band Energy

Audio analyzers like the Audio Precision APx555 measure the analog output signal of DACs within the 'in-band' range of 20Hz to ~20kHz to ensure the...

Notes from CanJam NYC

This show was a coming out for Audiowise ...and the first show of many I plan to attend. As with most things audio that deal with sound quality, i...

Sound Quality & RF Noise - Part 1

A proper analysis of RF energy effects in a digital audio system requires a measurement device to convert time-domain signal into frequency-domain....

My Listening Room Setup ('B')

Every OPTO•DX is signal calibrated using a RIGOL DS1104Z oscilloscope and then tested on a benchtop listening setup consisting of a Hugo MScaler to...

My Listening Room Setup ('A')

I have two listening areas. My primary ('A') has Voxativ loudspeakers driven direct from a Chord Electronics TT2 in a mid-field environment. IMO th...

A New Product for a New Era in High End Audio

After about 9 months of development, SRC•DX was launched this week - and will ship around the end of the year.  Its a low RF noise USB to dual-coa...

Good Measurements ...Finally!

I finally got a higher end spectrum analyzer for proper noise measurements.  The Signal Hound BB60C replaces my SA124A for better accuracy in real-...