That's the Dual Mono PL14_20 RevG1 Control Board doing what it does best, and full comp set up.
You will continue to be amazed as you listen to your new 700b. I listen to all kinds
of music, and a lot of early Jazz vinyl. Much of it is Mono of course, and I have been listening
to these albums for over 50 years. Through my WOPL 700b, I still hear things that I never did before.
I love Joe's design, and the proof is always in the music.
The soundstage and clarity are amazing. I use several different Pre-Amps in my main system, but the fixture
pre- has no tone controls at all, just volume and balance, line level. Music the way it was engineered, and the way the artist intended it to be heard.
Your 700b is built with expert craftsmanship, and the best components we have today. Mine never cease to
amaze me.
Enjoy, I have built 3 WOPL 700b's and it seems they sound better after a week. I know they say that the caps we use don't
need a "burn in" but every one seems to get a little better as I play them.