The organ was installed in three chambers. The Foundation chamber, containing the Diapason Phonon and Tibia Clausa, was installed in the front of the auditorium at the extreme right. Adjacent to it was the Reed chamber that contained the Tuba. Both of these chambers spoke through a tone opening measuring 7 feet by 12 feet. Between the opening and the front of the Foundation shades were the 44 pipes of the Pedal Violone Diapason. The Swell chamber was located at the rear of the auditorium, about 70 feet from the other two and 70 feet above the main floor of the auditorium. This chamber was known to contain four ranks of keen strings, a Rohrfloete, Clarinet and Orchestral Oboe. The organ was winded by a 20 h.p. blower that provided 25 inches of pressure.

In January 1910, the contract for the organ in the new building of the New York Society for Ethical Culture was awarded to the Hope-Jones Organ Company of Elmira, N.Y. The organ was to have four manuals and fifteen ranks and would cost $10,500. However, Hope-Jones was bankrupt, and in May 1910, the company was sold to The Rudolph Wurlitzer Co. for $15,800.