China’s largest organ, with four manuals and 113 stops, was installed in 2006 by the German company Klais in the National Grand Theatre. The instrument is located on the front wall of the hall behind a multi-part monumental free pipe prospect in various chambers. Numerous high-pressure stops are found in the rich disposition, which includes stops of every construction and every foot pitch from fundamental voices to unusual aliquots, such as the Quarte 1 5/11′. Another special feature is the acoustically generated 64′ stop Vox balenae 64′ (from Latin: Balena = whale), which produces abyssal tones that can be felt more than heard.