Cinema Auditorium at Grassi Museum
Hybridsystems and Subwoofer for Surround Sound
In the process of redesigning their multi-purpose cinema auditorium, the Grassi Museum Leipzig decided to implement a K.M.E. system for sound reproduction. The sloping downwards hall is used, among other things, for film screenings in the context of festivals, podium discussions and lectures. For this use case, the installed technology was no longer adequate and contemporary.
The existing surround sound system was significantly enhanced by three QF 5045 V2 above and next to the historic cinema organ in the front (Left, Center, Right). The acoustically difficult conditions due to reverberant concrete walls were mastered with the direct radiating speakers by avoiding reflections. For the foremost rows of seats, a ILS 64 is installed flat behind the sound-transmitting screen. The neutral frequency behavior as well as the presence allow for an unadulterated reproduction of the various high-quality sound formats. For bass reproduction two QLB 118 G are used, which are mounted on the left and right sides of the walls. The amplification of the audio signals coming from the Crestron HD-XSP DSP is taken over by a DA 428 for all tops as well as a DA 230 digital power amplifier for the subwoofer. Content can be provided either via the integrated Denon DBP-2012 UD Blu-ray player or external HDMI sources.
From October 28 to November 3, 2019, the DOK Leipzig, the leading festival for documentary and animated film, will return to the Grassi Museum. The film screenings and linguistic contributions can now be presented to the public with state of the art equipment.
The project was planned and implemented by our partner Studio-Elektroakustik GmbH.
Picture: “Eingang Grassi-Museen, Leipzig” from Dirk Goldhahn. Lizenz: CC BY-SA 3.0
Cinema Auditorium at Grassi Museum Products used
Hybrid Source Element QF 5045 V2
The single hybrid array element QF 5045 V2 (newly developed high frequency unit) with a dispersion of 50° horizontal and 45° vertical is an absolute novelty in the combination of line source and point source technologies. The QF 5045 V2 contains a high frequency unit with 4 x 1“ HF drivers which are coherently working on a waveguide guaranteeing a precise dispersion and seamless transition of the high frequencies between the array elements. The mid range system is a direct radiating 12“ neodymium speaker. In this system the requirements for compact dimensions, high SPL and defined dispersion of a line array are combined in a symbiosis. The tonal tuning enables the operation of the 2-way system as full-range system or as mid/high system within a powerful PA combination. The QF 5045 V2 is optimized for clustering of maximum three units both in groundstacking and flying mode. Furthermore, thanks to the integrated flange, the operation on a high stand is possible.
