Galliardist
Major Contributor
You are paying for the prestige of owning something with the Agostino name on it. You are also getting good performance and visual appeal as well, pricey as it is.
Stereophile Tests $45k D'Augostino Monoblocks
https://www.stereophile.com/content/dan-dagostino-master-audio-systems-progression-m550-monoblock-power-amplifier-measurements I would give this a headless panther. Since I have no panthers I can't. Measured performance looks weak to me (unless I'm missing something). The conclusion is bias is...
www.audiosciencereview.com
You mean this sort of excellent product? Where the company proudly included a technical report with a review sample, confirming highish distortion, with John Atkinson presuming underbiasing - given that they sent out that test report, deliberately set up that way or appalling QA?
And another sample that developed a fault during review?
I understand that D’Agostino has joined the subjectivist camp and we aren’t supposed to judge his products by measurements any more. But if he is achieving his results by getting someone to bias the amps by ear to achieve the magic, I’d suggest looking for that magic elsewhere.
And if poor QA was the cause, with a measurement taken, then…