Renkus-Heinz STX2

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Three-Way Mid/High CoEntrant Complex Conic Loudspeaker System

When the job calls for a three-way system with reference-quality sound, without the extended pattern bandwidth of larger format horns, the CDT-1 based STX2 is the answer.

Perhaps the smallest 12-inch 3-way system available, the non-powered STX2 delivers surprisingly high output levels while maintaining all the detail of the source material.

The mid and high horns may be rotated 90 degrees for horizontal mounting applications or for use in TRAP (TRue Array Principle) arrays.

Key Features


Compact Three-Way Design, Outstanding Performance

Only 26 1/2 in x 14 in x 16 5/8 in (HxWxD), the STX2 delivers accurate, full-range (50 Hz to 18 kHz) high-level (130 dB Peak SPL) performance.


* Built-In Mid/High Crossover

Eliminates the need for tri-amplification; allows bi-amping.


* Heavy-Duty 12-Inch Woofer

With treated fiber cone, easily handles 500 Watts RMS of power.


* 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 wide-band, high-power, true point source.


* TRAP (True Array Principle) Design

STX2 loudspeakers can be easily turned into true 40° TRAP modules by rotating their horns 90 degrees. TRAP modules combine seamlessly to produce a phase aligned wave front virtually free of lobing.


* Choice of Coverage Patterns

Choose between tightly controlled 60° by 40° and 90° by 40° and coverage patterns.


Virtually any application where directional control and arrayability 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 large sound reinforcement systems.


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

Technical Information

Sensitivity (1W/1m):All ModelsLows: 95 dB
Mids: 101 dB
Highs: 109 dB
Max SPL:All ModelsLows: 128 dB peak
Mids: 129 dB peak
Highs: 131 dB peak
60° H x 40° V

90° H x 40° V
Freq. Response:All Models50 Hz to 18 kHz
Mid/High Driver:All ModelsCDT-1L; SSD1802S-8B 1" HF (40W RMS) & SSL8-9 8"MF (150W RMS)
LF Driver:All Models12”model SSL12-13 woofer; 4” VC; 500 W RMS (1000 W Pgm)
Enclosure:All ModelsMulti-ply hardwood, perforated metal grille
Crossover Points:All Models600 Hz (passive 1500 Hz mid/high crossover is built-in)
Power:All ModelsLows: 500 W RMS @ 8 Ohms
Mid/Highs: 150 W RMS @ 8 Ohms
Finish:All ModelsBlack, White or Natural (unfinished) paint
Custom Color
Weather Resistant
TuffTex (black only)
Connectors:All ModelsNeutrik 4-pin or screw terminals
Hardware:All Models12-point Universal Mounting Hardware
Omnimount Series 60 nut-plates
Tripod Socket
AeroQuip Fly-track
Dimensions:All Models26.5" H x 14" W x 16 5/8" D
(67.3 cm x 35.6 cm x 42.2 cm)
Weight:All Models75 Lbs (34 kg) Net