Renkus-Heinz CX42 2‐Way, "Stair‐step" loudspeaker 2 x 4" LF, 1" HF

Product Overview

The Renkus-Heinz CX42 is a compact, passive two-way stair-step loudspeaker built for in-wall mounting in stair risers and stage lips. Its dual 4-inch woofers and 1-inch titanium high-frequency driver provide wide 150-degree by 60-degree coverage, making it a discreet front-fill and side-fill loudspeaker for auditoriums, houses of worship, and commercial meeting spaces where speakers must mount inconspicuously.

Product Description

The CX42 belongs to the Renkus-Heinz C Series of premium installation loudspeakers and was developed specifically for in-wall mounting in stair risers and stage lips. Its angled stair-step enclosure positions sound toward the audience while keeping the loudspeaker out of sight. Two heavy-duty 4-inch woofers (SSL4-6) and a 1-inch titanium high-frequency driver (SDA105-8) reproduce 300 Hz to 18 kHz, and a high-frequency diffraction slot produces smooth 150-degree by 60-degree coverage. A built-in crossover removes the need for a separate electronic crossover and bi-amplification, while screw terminals and looping 4-pin Neutrik SpeakOn-style connectors support reliable wiring. The hardwood enclosure with perforated metal grille is finished in black or white paint and is rated at 120 W AES and 240 W program at 16 ohms. An optional 18-gauge metal back box, the CFX42-BACKBX, is concrete-pour ready for new construction. The wide coverage and low profile make the CX42 well suited to side-fill and front-fill duty as well as foreground music in retail and office environments.

Key Features

• Stair-Step In-Wall Design — The angled enclosure mounts inconspicuously in stair risers and stage lips while aiming sound at the audience.
• Dual 4-Inch Woofers — Two SSL4-6 woofers handle 240 watts of program power for high output from a small footprint.
• 1-Inch Titanium HF Driver — The SDA105-8 driver delivers smooth, low-distortion high frequencies to 18 kHz and beyond.
• Wide 150° x 60° Coverage — A high-frequency diffraction slot spreads sound evenly across nearby seating for fill applications.
• Built-In Crossover — An integrated crossover removes the need for a separate electronic crossover and bi-amplification.
• Professional Connectors — Screw terminals and looping 4-pin Neutrik SpeakOn-style connectors support reliable, daisy-chained wiring.
• Optional Metal Back Box — The 18-gauge CFX42-BACKBX is concrete-pour ready for integration into new construction.
• Black or White Finish — Painted finishes let the loudspeaker blend into a range of architectural surfaces.

Typical Applications

• Auditorium — Mounts in stage lips for front-fill coverage of the first rows.
• House of Worship — Provides discreet fill where loudspeakers must stay out of sightlines.
• Conference Room — Delivers even foreground audio from an in-wall position.
• Multi-Purpose Room — Supplies side-fill and front-fill coverage in flexible spaces.
• Commercial Meeting Space — Serves foreground music and paging in offices and retail areas.

Technical Specifications

Competitor Comparison

Competitor details reflect general product positioning and should be verified directly with each manufacturer; they are not measured test data.

Frequently Asked Questions

Where is the CX42 meant to be installed? It was developed for in-wall mounting in stair risers and stage lips, and works well for side-fill and front-fill coverage.

Is a back box available? Yes. The optional 18-gauge CFX42-BACKBX metal back box is concrete-pour ready for new construction.

Does it need an external crossover? No. The CX42 has a built-in passive crossover, so no separate electronic crossover or bi-amplification is required.

What amplifier does it require? It is a passive loudspeaker rated at 120 W AES / 240 W program at 16 ohms and is driven by an external amplifier.

Is technical support and warranty assistance available? Yes. Contact Creation Networks for current warranty terms and installation guidance.

Explore the full Renkus-Heinz collection and the ultra-compact CX41 coaxial loudspeaker.