Compact, highly versatile enclosure
High fidelity, Impressive output for size
90 degree conical directivity
2-way passive enclosure
Compression Driver High Frequency
LF extension with SB and M Subwoofers


The C5 is an ultra-compact, high performance, multipurpose loudspeaker designed for short throw applications. Part of the C Series from RMS-Acoustics, the C5 delivers exceptional output, and wide bandwidth for its size, yielding highly capable sound reinforcement from a compact and versatile package. Its impressive fidelity makes it perfectly compatible with the larger RMS-Acoustics loudspeaker systems. The C5 is ideal for integrating into retail or business environments, studios, or homes, and complementing larger systems in theaters, performance venues, or houses of worship.

The combination of versatile mounting options, weatherization, and virtually any RAL color makes the C5 a no compromise, yet easy integration to a wide variety of applications. Supplemented with an SB series subwoofer from RMS-Acoustics, the C5 makes an ideal distributed background music system for restaurants, bars, museums, conference rooms, hotels, or hospitality venues, or even your home listening environment.

The centerpiece of the C5 system features a premium 5.5” coaxial device with a 1.4” compression driver. High efficiency, and high-power handling in such a small package, combined with an optimized RMS-Acoustics crossover, yield astonishing output for a loudspeaker system this compact.

The C5 cabinet features an impact resistant, textured polyurethane paint finish. The loudspeaker system is available in two weatherization grades, (-X1, -X2), optional in white (-W) or custom colors (-C). White, and some custom color options are available also in the X1 weatherization configuration. The C5 delivers a standard enclosure protection rating of IP54 when mounted at a downward facing angle of 20° and the extreme weatherized option achieves an IP55 rating.

The optimum processed amplification and control solution for the RMS-Acoustics C5 is the RMS-46K amplified controller. Linea Research 44M06 series and 44C06 series amplifiers, with propriety presets provided by RMS-Acoustics are also recommended.


Frequency Range (-10dB) ^1 75 Hz - 22 kHz Assumed 70 Hz High pass filter 0dB point taken at 1000 Hz, Processed
Frequency Response (+/-3dB) 95Hz - 18 kHz Assumed 100 Hz High pass filter 0dB taken at 1000 Hz, Processed
System Sensitivity (1w, 1m)^2 90dB Measured on LF band, average SPL over 300 to 1 kHz region. HF Sensitivity significantly higher
Maximum SPL Continuous (1m) 115dB


105 Hz - 18 kHz

85 Hz - 20 kHz

Maximum SPL Peak (1m) 120dB


105 Hz - 18 kHz

85 Hz - 20 kHz

Long Term Power Rating (IEC)^3 FR 175W, 350W, 700W (Continuous, Prgm, Peak)
Long Term Power Rating (AES)^4 FR 175W (500W Peak), 2 hrs, 100W 100Hr
Nominal Coverage Pattern 90° Horizontal x 90° Vertical (Standard) -6dB Isophase
System Crossover 1300 Hz 12dB/ Octave , Proprietary RMS-Acoustics IIR Overlay, optional FIR
Transducer SPKR-5-0002 Full Range Coaxial Driver, 5.5” Neodymium Coaxial Cone Loudspeaker
Input Connectors Dual Neutrik NL4 Connectors, Rubber gland nut with SJOOW Cable Weatherized
Enclosure Materials Composite Copolyester
Grille Materials Aerospace Aluminum, Hexagonal pattern, Epoxy powder coat, Acoustically transparent black foam backing
Finishes Black finish (Standard) Polurethane textured spray
Additional Finishes available - See Options Below
Suspension and Mounting Proprietary internal, captive rigging points
Rigging Hardware C5B U Bracket specific to C5, ordered separately
WM-S RMS-ACOUSTICS wall mount small, ordered separately
MM-008-BT Adaptive Technologies 15lb Wall mount bracket, ordered separately
KM-24481 Konig and Meyer 25lb Wall mount bracket, ordered separately
Dimensions 6.3” w x 6.6” d x 8” h  (160 mm x 168 mm x 204 mm)
Weight NET 7 Lbs (3.18 kg),    SHIPPING 9 Lbs (4.1 kg)
IP Enclosure Rating Standard 54, -X1 Weatherize 54, -X2 Weatherize 55
Finish Options -X1 (Weatherized), -X2 (Weatherized), -W (White), -C (RAL Custom Color)
Upcharge applies
Optional Accessories STAND1 Loudspeaker stand adapter 35mm
EYEBOLT 1/4-20 1/4-20 Eye Bolt Suspion Eye
C5B U Bracket for C8
Free field, semi anechoic conditions.  To compare with half space measurements, add 6dB to maximum output specifications.
1. Full Space, 4pi conditions
2. Measured Maximum SPL, based on power compression observation of 3dB
3. IEC Shaped pink noise with 6dB Crest Factor
4. AES Standard AES2-2012, one decade pink noise with 6dB Crest factor within device’s applicable operating band, free air. Standard AES 2 hr rating are specific for low frequency transducers.


C5B C5 specific u bracket, for horizontal or vertical installation, black, ordered separately
WM-S RMS-ACOUSTICS wall mount small, ordered separately