Compact Two-Way Complex Conic Loudspeaker Systems

Every C Series loudspeaker is engineered by Renkus-Heinz to unrivaled standards of quality and innovation. Before we’ll ship them, your loudspeakers have to meet our exacting requirements, for performance that will make you proud and durability that will keep you sounding great.

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8-inch Heavy Duty Woofer + 1-inch titanium HF driver

Sound that makes performances and audiences truly come alive doesn't come easy. But C Series loudspeakers put the power of unique Renkus-Heinz developments like Complex Conic Horns to work for you. Versatile enclosure designs, go-anywhere hardware and rugged construction help solve your sound reinforcement challenges easily and quickly.

The C81 features an 8-inch heavy duty woofer and a 1-inch titanium HF driver.

CX81 Non-Powered Loudspeakers
For use with external amplification

Key Features

• High Volume Output, Small Enclosures
70 Hz to 20 kHz ±3 dB: Outstanding, full-range performance in an extremely compact, space-saving design.

• Exclusive 120° x 60° Complex Conic Design
Provides constant beamwidth/directivity without the problems of conventional rectangular horns; can be rotated 90° within the cabinet for wide or deep listening spaces.

• 1-inch Extended Range Titanium HF Driver
Provides smooth, low distortion high frequency performance to 20 kHz and beyond.

• Heavy-Duty 8-inch Woofer
Easily handles 250 Watts of program power.


• Virtually any application where size is a critical issue and outstanding sonic performance is required.

Permanent Installations

• Ideal for fills, delays, distributed and playback systems Churches, schools, sports venues, board rooms, malls, transportation venues, retail environments

Portable Applications

• Ideal solution for portable, compact, full-range sound reinforcement requirements.
• Performing artists, rental A/V, schools, churches, etc.

Technical Information

Sensitivity: All Models96 dB (1W/1m)
Max SPL: All Models128 dB peak
Dispersion: All Models120° x 60°
Freq. Response: All Models± 3 dB, 90 Hz to 18 kHz
HF Driver: All Models1" Titanium driver, Model SSD140-8F; 15 W RMS, 30 W Pgm
LF Driver: All Models8" model SSL8-13F woofer, 2" VC, treated fiber cone; 100 W RMS @ 8 Ohms, 250 W Pgm
Enclosure: All ModelsPoplar Ply, perforated metal grille
Finish: All ModelsBlack or White Paint
Power: CX81
125 W AES @ 16 Ohms
250 W Pgm @ 16 Ohms
See SA625 Amplifier
Connectors: CA81
See SA625 Amplifier
Hardware: All Models12-point Universal Mounting Hardware
(Metric M6 threads)
U-bracket attachment points
Dimensions: All Models21" H x 10.5" W x 10.5" D
(53.34 x 26.67 x 26.67 cm)
Weight: CX81
27.8 Lbs (12.61 Kg) Net
26.8 Lbs (12.156 Kg) Net
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Data PDF2D PDF2D ACAD3D ACADA & EUser ManualSeries BrochureEASE Data
Additional Downloads
FileDocument TypeModelsDescription
CX81 Split Grille
C Series Group Lge
CX81 Front
CX81 Left Angle
CX81 Right Angle
CX81 Rear
Part #Description
UBRKT/81BBlack Single U-Bracket
UBRKT/81WWhite Single U-Bracket