Best 300B SET

The list of possibilities is daunting and includes Audion, Audio Note, Border Patrol, Coincident, Deja Vu, etc. Best? Not sure that there is ever a best. However, I very much enjoy my Ancient Audio custom 300b SET amplifier with Takatsuki 300b tubes paired with my Zu Def 4s.

Since you have a Shindo pre start by hearing it with the Shindo 300b amp.

Have to agree with Gsm18439(Gary). There are no shortage of worthy canidates in this realm. System matching and individual listening preference make it impossible to declare any of them the best. You can certainly say there are a variety of superb choices available.Those SETs listed above would qualify.
Charles,

"Looking for 300B SET (one output tube per channel)"

Do you mean one output tube per channel as in you don't want PP, or do you mean an SET with 2 output tubes, or both?