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 Models Lows: 95 dB
Mids: 101 dB
Highs: 109 dB
Max SPL: All Models Lows: 128 dB peak
Mids: 129 dB peak
Highs: 131 dB peak
Dispersion: STX2/64 60° H x 40° V
STX2/94 90° H x 40° V
Freq. Response: All Models 50 Hz to 18 kHz
Mid/High Driver: All Models CDT-1L; SSD1802S-8B 1″ HF (40W RMS) & SSL8-9 8″MF (150W RMS)
LF Driver: All Models 12”model SSL12-13 woofer; 4” VC; 500 W RMS (1000 W Pgm)
Enclosure: All Models Multi-ply hardwood, perforated metal grille
Crossover Points: All Models 600 Hz (passive 1500 Hz mid/high crossover is built-in)
Power: All Models Lows: 500 W RMS @ 8 Ohms
Mid/Highs: 150 W RMS @ 8 Ohms
Finish: All Models Black, White or Natural (unfinished) paint
Custom Color
Weather Resistant
TuffTex (black only)
Connectors: All Models Neutrik 4-pin or screw terminals
Hardware: All Models 12-point Universal Mounting Hardware
Omnimount Series 60 nut-plates
Tripod Socket
AeroQuip Fly-track
Dimensions: All Models 26.5″ H x 14″ W x 16 5/8″ D
(67.3 cm x 35.6 cm x 42.2 cm)
Weight: All Models 75 Lbs (34 kg) Net