Achieving High Fidelity Sound

Lossy boxes also release the back pressure by flexing, damping the resonant peak. Even so you can work out alpha as about 1.5 for the closed box which gives you Fb and Qtc.

My USB and S/PDIF cards and Pi4B-Pi2AES Lite transport are on hold for the moment whilst I finish transitioning from MySphere 3.1 to Mark Audio speakers. I am really pleased with the Tozzi Two and CHP-90 drivers and have the CHR-90 and CHR-120 for comparison and deep bass respectively. Speakers provide more spatial information so I wish to use them, not headphones, for critical listening of transports and computers. Sound differences may be very subtle and may barely be heard without extended speaker listening to identify them objectively. The ability to project a sense of space is an important quality to be compared so once I've got a precise 20-80Hz alongside my Tozzi Two, I shall return to the transports. I want to have a look at RISC-V single board computers too.

It's been a few years since I posted on this section of the forum. I did find myself focussing on other hobbies and interests and for a while, a girlfriend, so lost motivation to post anything. I guess it was primarily because the core of my audio system was already complete and finalised and I felt no need to change it so never had anything new to talk about. What was left was just tweaking and deciding on how to optimise the audio source. I was waiting for advancement in computers too; powerful, small form factor PCs with capable onboard graphics, almost silent operation and great efficiency so that thermal management was easy. I also wanted a platform that I could build a metal case around and plug a PCIe soundcard into. Enter the Framework desktop mainboard...

Edited by Ash - 08 Feb 2026 at 12:28am