One reason Stereophile publishes a FollowUp is when the original review leaves an issue unresolved or where further thoughts would be useful. Such was the case with the magazine's March 2022 issue, which had followup reviews on the iFi ZEN CAN headphone amplifier and ZEN DAC Signature V2 D/A processor ($599/pair). the Pro-Ject Phono Box RS2 phono preamplifier ($1999), and the Canton Reference 7K loudspeaker ($6995/pair).

Gold Note's $11,999 PH-1000 is by a considerable margin the most sophisticated, most configurable phono preamplifier that any audio manufacturer has ever produced, at least that I know of. Remarkably, considering all that flexibility and sophistication, using and adjusting the PH-1000 is straightforward.