Acoustics First Corporation. Materials to Control Sound and Eliminate Noise. TM
Products » Absorbers » Specialty » Sonora® Low-Frequency Control (LFC) Panel

Sonora® LFC
Low-Frequency Control Panel

The Sonora® Low-Frequency Control (LFC) panel is unique in the Acoustics First line of sound absorbing products. These low-frequency absorbers are tuned for alleviating bass build-up in a room while allowing the higher frequencies to breathe. Broadband bass traps can be overused in performance environments where there are other products already in place to control high frequencies - like diffusers or other broadband threatments.

The Sonora® LFC is focused squarely on the rumble/boomy bass frequencies below 250 Hz. Sounds within these ranges are more susceptible to buildup from room modes and contribute to the "rumble and boominess" of a space. The Sonora® LFC panel is a great option for studios, theaters, or any critical listening environment where low frequency control is desired without over-absorbing high frequencies.

The core construction is a multi-density glass fiberboard with a resonant reflective face. It is then wrapped in an acoustically transparent fabric. Finishes are returned to the back for a fully tailored edge.

Edge Detail
All edges are resin hardened and square.

Standard Mounting
2 piece Z-Bars.

Acoustical Performance
(NRC is an average of 250Hz-2000Hz frequencies)

Fire Rating
All components have a Class “A” rating per ASTM E84

4" thickness and custom shapes up to 4’ x 8’

Colors:  Guilford of Maine FR701 Style 2100
(white and eggshell are available at additional cost)


Sound Absorption Coefficients (F-10 Mount)
80 Hz 100 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz NRC
1.08 0.92 0.71 0.55 0.54 0.39 0.33 0.29 0.45
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