Strategy 400 is 200w per side, stereo or 400w bridged mono. 12 6L6, or 8 6L6/4 EL34(back row). HiFi guys have been known to use the S400 for home use also.
i posted this on a mesa boogie fb group. Cool chassis shots in the listing. lots of those mini trim pots, never seen that on a stock boogie. depending on how high it gets, i might throw a bid in last minute. I do predict it will go for 3500-4k ish though.