Sacred Ground Studios
A Music Listening Room Like No Other
Sacred Ground is a dual purpose room. It measures 15′ w x 9′ h x 29′ l. Both “live” end and two channel playback are all built under the same room acoustic. Excessive low and middle frequency energy are absorbed using our activated carbon technology. Middle and high frequency energy is treated with our proprietary foam and the application of quadratic diffusion.
One end is a “live” room with drums, Hammond/Leslie, electric guitar and bass. Vocals are run through passive Renkus Heinz mono PA with Cary Audio Hi-Fi tube amplifier. Custom speaker / interconnects by JPS Labs. Mic pre-amp is Apollo run by Pro-Tools. The other end is a two channel hi-fi playback system with Revel Saloon II speakers coupled with Levinson solid state, bi- amps. Rogue Audio tube pre – amp, Benchmark DAC, Esoteric transport and Sony Media Server.
The “live” end has two unique features. There is a variable acoustic wall which alternates between rates and levels of diffusion and absorption and a carbon filled drum platform. On the rear wall, directly behind the drums and organ is a sliding panel system. Each wood “ladder” contains our 2″ foam technology. The panels expose and also cover a two dimensional quadratic diffusion system based upon prime number 17. Under the drums is our ACDA-10 carbon technology built into the riser. The total platform is composed of a series of modules that fit together to form the drum platform surface area.
The ceiling system is a series of three individual modules. One represents our ACDA-10 performance and one our ACDA-12 technology. The third module is a quadratic diffusion sequence based upon prime number 11. Both the ACDA-10 and 12 technologies are distributed throughout the surface area of the ceiling to manage both frequency specific and broadband absorption issues that are produced by the ceiling to floor dimension. Two dimensional diffusion minimizes the impact of reflections at both ends of the room.
The room is a second story build with over 18,000 lbs. of our carbon technology inside the walls and ceiling. Additional structural support was added to manage the weight of the carbon and reduce vibration at all offending sources from door latches to air conditioning systems.
Carbon technology was used in all electronic gear platforms from the amplifiers in the “live” end to the speakers, amplifiers, and electronics of the two channel playback end.
The two channel playback side is surrounded by our ACDA-10 and ACDA-12 carbon technology on both side walls. The front wall is our QDA-23 diffusion absorption system that has three technologies built into one unit. First, there is vertical, one dimensional,quadratic diffusion. Second, there is a broadband ACDA-10 performance behind the quadratic diffusion sequence and finally, the base of the QDA – 23 has our ACDA-12 carbon technology.
from Sacred Ground
This instrumental track was recorded at Sacred Ground Studios, without using any effects on the audio stems. The track is in mp3 format but you can download a high quality (96 kHz, 32-bit, 244 MB) WAV version. If you like you can also view a sheet with recording details like preamps and microphones used for the recording.
This recording is done with alternating absorption and diffusion exposed to the microphone. You have foam panels then diffusion and foam panels. This allows for 50% absorption and 50% diffusion at the microphone position.
This recording is done with the foam panels positioned to one side to allow for maximum diffusion at the microphone position directly behind the drums. Two dimensional diffusion allows for middle and high frequency definition and spaciousness.
Please visit our Recorded Audio & Test Tracks page for a more detailed breakdown as well as a high quality (96 kHz, 32-bit) WAV file of the recording.
The whole Acoustic Fields team and I have worked really hard in the last years to realize this ambitious project. Now we would be more than happy to share this special experience with you. If you’re interested in a personal Sacred Ground tour, please don’t hesitate to contact us here. If you’d like us to assist you with the planning and construction of your very own listening room like Sacred Ground Studios, please start by filling out our Free Room Acoustic Analysis form. In 2016, we will have many new projects including Church room acoustics, home theaters and dedicated listening rooms.