Hi Sarah and Steve,

The ZROCK-2 arrived on Tuesday evening in perfect condition, and it is now working well.

With the suggested setting, “A" with the volume knob at about 2 o’clock, I started with E P Biggs Wacht Auf on Columbia.  The organ really came out alive.

So did the Dave Wilson CD of the Van Tropp tracker organ. I could here the "contra bassoon" stop.  

Seems like the old Columbia records will have a new life.  I also tried the Mercury stereo version of Eddie Layton at the Wurlitzer Organ in the Radio City Music Hall studio.  Very revealing!

Thank you very much for your service and expertise, and thank you to Zu Audio for their recommendation last February

Sincerely,
Michael