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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15-inch Woofer + 2-inch voice coil 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 C151 features a 15-inch heavy duty woofer and a 2-inch titanium HF driver.

CX151 Non-Powered Loudspeaker
For use with external amplification

Key Features

• Compact Design
Outstanding, full-range ± 3 dB, 55 Hz to 20 kHz performance in a compact, space-saving design.

• Exclusive 60° x 40° Complex Conic Design
Provides constant beamwidth/directivity without the problems of conventional rectangular horns.

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

• Heavy-Duty 15-inch Woofer
Easily handles 700 Watts of program power.

• Built-in Crossover
Includes EQ and high frequency protection; in the CX151 eliminates need for a separate electronic crossover and bi-amplification.


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

Permanent Installations

• Ideal compact main PA for music and speech or as part of a high output distributed system in larger venues.
• Houses of worship, schools, performing art centers, night clubs, stadiums and arenas.

Portable Applications

• Ideal main PA for unobtrusive live music and speech reinforcement or as fill coverage in larger systems.
• Rental A/V, DJ systems, churches, schools, etc.

Technical Information

Sensitivity: All Models98 dB (1W/1m)
Max SPL: All Models135 dB peak
Dispersion: All Models60° x 40°
Freq. Response: All Models± 3 dB, 55 Hz to 20 kHz
HF Driver: All Models2" SSD203-8F driver, 40 W RMS, 80 W Pgm
LF Driver: All Models350 W RMS @ 8 Ohms, 700 W Pgm
Enclosure: All ModelsPoplar Ply, perforated metal grille
Finish: All ModelsBlack or White Paint
Power Rating: CX151
350 W AES @ 8 Ohms
700 W Pgm @ 8 Ohms
See SA-1250 Amplifier
Connectors: CX151
Screw terminals & looping Neutrik 4-pin SpeakOn style connectors
See SA-1250 Amplifier
Hardware: All ModelsU Bracket
12 M10 Points
Dimensions: All Models28.375" H x 17.5" W x 17" D
(72.073 cm x 44.45 cm x 43.18 cm)
Weight: CX151
57 Lbs (25.85 Kg) Net
56.8 Lbs (25.764 Kg) Net
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Data PDF2D PDF2D ACAD3D ACADA & EUser ManualSeries BrochureEASE Data
Additional Downloads
FileDocument TypeModelsDescription
CX151 Split Grille
C Series Group Lge
CX151 Front
CX151 Left Angle
CX151 Right Angle
CX151 Rear
Part #Description
UBRKT/151BSingle Black U-Bracket
UBRKT/151WSingle White U-Bracket