Dan's Blog

The Ideal S/PDIF (Coax) Filter ...for Perfect High Resolution Digital

by Daniel Mance July 25, 2022

The S/PDIF coax audio signal supports 44.1kHz to 384kHz sampling rate at 24-bits for an effective signal rate of about 50Mbps - or 100MHz of bandwi...

User Testamonial: Using PGGB to Tame DSD High Frequencies

by Daniel Mance July 14, 2022

Thanks to Waldemar P. (Germany) for this testamonial: I live in Germany in the Dusseldorf – Cologne area. I purchased a full license of PGGB-RT and...

How Speakers Make Sound

by Daniel Mance July 05, 2022

Yes we all know how a loudspeaker works ...but this overview video does an excellent job of highlighing the engineering and physics involved. And t...

My New Speakers and Updated Reference System

by Daniel Mance June 17, 2022

For the past 3 years, my critical listening was based on Focal SM9 monitors. Recently, I started looking for a passive loudspeaker setup that main...

PGGB Elevates Sound Quality with Improved Precision

by Daniel Mance May 26, 2022

Download samples below! PGGB 'perfect' resampling technology was launched a year ago and has made its way to hundreds of music lovers. I was a conv...

User Testamonial: CD Upsampling with PGGB-RT/foobar

by Daniel Mance April 10, 2022

Thanks for Michael P. (USA) for this testamonial: I have a Windows PC laptop with 64Gbytes of RAM that is dedicated to my stereo system. Installed ...

User Testamonial: SRC•DX with Chord Mojo

by Daniel Mance April 10, 2022

Thanks to Michael D. (UK) for his testamonial comments: I have a Dave on order. So while I waited I looked for ways to upgrade the sound from my Mo...

March 12,13 Demo Weekend near Toronto

by Daniel Mance March 01, 2022

If you live close to the GTA (Greater Toronto Area), please make time during the weekend of March 12 & 13. AudioWise is demonstrating its full ...

My End-of-Year Reference Systems

by Daniel Mance December 18, 2021

Its been a busy year for me - I've learned a lot and honed my products in anticipation of what's coming next year. Despite the dearth of audio trad...

A Summer of PGGB Software

by Daniel Mance October 12, 2021

This past May, a post appeared on Audiophile Style ("A toast to PGGB, a heady brew of math and magic" by RayDude) that introduced a new approach to...

The Need for Magnetic Field & Low Frequency RF Shielding

by Daniel Mance April 12, 2021

After my experience of improved sound quality with a household RF lockdown, it was apparent that the AC Mains power connection was manifesting the ...

Another Extremely Positive OPTO•DX User Review

by Daniel Mance March 14, 2021

Thanks to Paul R. from Philadelphia, PA! I have a Chord DAVE running to an Auris Nirvana tube amp and a pair of HIFIMAN Susvara headphones. When I ...