High-Power Quad 12-inch Three-Way Mid/High CoEntrant Complex Conic Loudspeaker System

Self-powered PowerNet ST9R Series loudspeakers unite advanced technology and application-driven engineering to bring live sound closer to the ultimate reference point: reality. Patented CoEntrant Mid/Hi transducers, Class-D digital tri-amplification, and unique innovations like our Complex Conic Horns combine to deliver natural sounding music and intelligible speech. Wherever audiences and operators demand superior performance and ease of use, ST/STX Series loudspeakers are an excellent choice for transparent, reference quality performance.

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ST9R PowerNet loudspeakers are RHAON empowered for flexible analog and digital signal distribution and loudspeaker management and control over a CAT 5 Ethernet network.

Key Features

• Compact Three-way Design - Unparalleled Performance
Accurate, full-range 40 Hz to 18 kHz frequency response, high-level 142 dB peak SPL performance

• Flexible Input Configurations
Go self-powered with the PM3R PowerNet Tri-Amplifier with RHAON for flexible analog and multi-channel digital signal distribution, computer control and supervision.

• Quad-12 Doublet Low Frequency Design
Provides superior low frequency directionality in both horizontal and vertical planes.

• Exclusive Complex Conic Design
Provides constant beamwidth/directivity without the issues associated with conventional rectangular horns.

• Patented CoEntrant Topology
Integrates the acoustic output of a 10-inch cone and a 2-inch HF driver into a wideband, high-power true point source

• TRAP (True Array Principle) Design
ST9/44ASR and STX9/44AS Models are true 40° TRAP modules that com bine seamlessly to produce a phase aligned wave front virtually free of lobing. The /64 and /94 models can be turned into TRAP modules by rotating their horn 90 degrees.

• Choice of Coverage Patterns
Choose between tightly controlled 60° by 40°, 90° by 40° and asymmetrical 40° by 40° (+10°, -30°) coverage patterns.

PM-3R PowerNet Tri-Amplifier

The PM-3R is a new kind of intelligent electronic system. The heart of the ST5R, it combines Class D digital tri-amplification with RHAON, the Renkus- Heinz Audio Operations Network for comprehensive DSP controlled signal processing and control.

RHAON empowers you with CobraNet digital audio distribution, user-configurable DSP for maximum control, remote systems management from any Windows computer, life safety functions and more – all using standard Ethernet hardware and cabling.

The PM-3R offers dual analog inputs, dual CobraNet inputs and an AES3id serial input. The on-board DSP includes eight bands of parametric EQ, high and low shelving filters, delay and input level control, and is easily configured using RHAON software. Critical operating parameters such as signal clipping, amplifier output voltage and current, and temperature are continually monitored with automatic alert functions.


Virtually any application where directional control and array-ability are critical issues and outstanding sonic performance is required.

• Distributed systems in sports arenas and stadiums.

• Multi-channel A/V playback systems, live sound and music systems in dance clubs (with optional subwoofers)

• Side fill in all types of sound reinforcement systems.

• Array modules for theatrical and concert sound systems, sound reinforcement systems in houses of worship.

Technical Information

Sensitivity: ST9 - ST9/44AS
ST9 - ST9/44
ST9 - ST9/46
ST9 - ST9/64
ST9 - ST9/94
1.4 V for rated power output
Max SPL: ST9 - ST9/44AS
ST9 - ST9/44
ST9 - ST9/46
ST9 - ST9/64
ST9 - ST9/94
Lows: 133 dB Peak
Mids: 133 dB Peak
Highs: 134 dB Peak
Dispersion: ST9 - ST9/44AS
ST9 - ST9/44
40° H x 40° V Asym. (+10°, -30°)
ST9 - ST9/46
60° H x 40° V
ST9 - ST9/94
90° H x 40° V
Freq. Response: All Models40 Hz to 18 kHz
Mid/High Driver: All ModelsCDT-2A; SSD3302-8A 2" HF (75 W RMS) & SSL10-5 10" MF (300 W RMS)
LF Drivers: All ModelsFour 12" model SSL12-10 woofers; 3" VC ; 400 W RMS (1600 W RMS total)
Crossover Points: All Models350 Hz & 1500 Hz
Power: ST9 - ST9/44AS
ST9 - ST9/44
ST9 - ST9/46
ST9 - ST9/64
ST9 - ST9/94
See PM3R Amplifier Module
Enclosure: All ModelsMulti-ply hardwood, perforated metal grille
Connectors: ST9 - ST9/44AS
ST9 - ST9/44
ST9 - ST9/46
ST9 - ST9/64
ST9 - ST9/94
See PM3R Amplifier Module
Finish: All ModelsBlack, White or Natural (unfinished) paint
Custom Color
Weather Resistant
TuffTex (black only)
Hardware: All Models12-point Universal Mounting Hardware
AeroQuip fly-track
R-Hang hardware
Dimensions: All Models50" H x 24" W x 32 1/4" D
(127 cm x 61 cm x 81.9 cm)
Weight: ST9 - ST9/44AS
ST9 - ST9/44
ST9 - ST9/46
ST9 - ST9/64
ST9 - ST9/94
270 Lbs (122.5 kg) Net
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Data PDF2D PDF2D ACAD3D ACADA & EUser ManualRelease NotesSeries BrochureEASE Data
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ST9 - ST9/46ViewViewViewViewViewViewViewView
ST9 - ST9/64ViewViewViewViewViewViewViewView
ST9 - ST9/94ViewViewViewViewViewViewViewView
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Part #Description
FT-ST5Aeroquip Flytrack, Side mounted for front and rear pickup
WR-005Weather Resistant
TuffTex5TuffTex (Black Only)