JBL AC28/26 - 750W 2 x 8-inch Passive 2-Way Installation Loudspeaker with 120 x 60-Degree Coverage in Black Finish

The JBL Professional AC28/26 is a high-performance passive loudspeaker designed to deliver full-range audio in a compact form, offering excellent coverage and powerful sound output. Finished in a sleek black textured DuraFlex coating, the AC28/26 is engineered for both fixed installation and versatile mounting configurations, making it ideal for use in commercial spaces, auditoriums, theaters, and under balcony or column applications. The AC28/26 is built to provide maximum bandwidth and SPL with minimal distortion, ensuring clear, natural, and immersive sound reproduction even in challenging environments.

At the core of the AC28/26 are dual 8-inch low-frequency transducers with JBL's Symmetrical Field Geometry (SFG) technology. Each driver is equipped with a 2.5-inch edge-wound voice coil and a copper-clad pole piece, which work together to reduce voice coil inductance and distortion, resulting in tighter, more accurate bass reproduction. The combination of dual woofers and a 1-inch exit compression driver integrated into a 120° x 60° Progressive Transition (PT) waveguide ensures consistent and even coverage across the listening area. The PT waveguide's rotatable design allows users to change the coverage pattern from vertical to horizontal orientation, providing enhanced flexibility for installation in various spaces.

To further enhance the performance of the AC28/26, JBL incorporates Filtered Array Technology (FAT) to independently control the dual woofers. This advanced technology optimizes magnitude and phase response, ensuring smoother power response and consistent coverage throughout the frequency spectrum. Whether the loudspeaker is used in vertical or horizontal orientation, the high-frequency coverage pattern remains accurate, providing even sound distribution regardless of placement. The speaker is engineered to minimize band overlap and off-axis distortion, offering a highly natural and transparent voicing.

The AC28/26 is housed in a rugged multi-ply hardwood enclosure with a 12 mm and 15 mm thickness, ensuring both durability and excellent acoustical performance. The enclosure is designed for flexibility, with attachment points for an optional U-bracket, OmniMount-compatible brackets, and stand mount accessories. The heavy-duty powder-coated steel grille is backed with acoustically transparent foam to protect the drivers while maintaining optimal sound performance. The enclosure's black DuraFlex finish not only ensures durability but also gives the speaker a professional appearance that fits well in both modern and traditional environments.

With a frequency range of 53 Hz to 20 kHz and a frequency response of 65 Hz to 20 kHz, the AC28/26 is capable of delivering a full-range audio experience, with deep bass and clear high frequencies. It features a system sensitivity of 94 dB SPL at 1W/1m and a maximum SPL of 120 dB, making it ideal for medium-to-large venues where high output and clarity are required. The loudspeaker's power handling capabilities are impressive, with a continuous rating of 375W, a program rating of 750W, and a peak rating of 1500W, ensuring that it can handle demanding audio applications without distortion. The AES power rating is 350W (1400W peak), providing ample headroom for high-energy sound reinforcement applications.

Designed for use in both indoor and semi-outdoor environments, the AC28/26 is IP53-rated for protection against dust and water spray, ensuring reliable performance even in less-than-ideal conditions. For more challenging weather environments, optional weather-resistant versions (WRC and WRX) are available. The speaker is equipped with Neutrik Speakon NL4 connectors and covered barrier strip terminals for secure and flexible wiring options, allowing it to be integrated into a wide range of audio systems with ease.

Features

• Dual 8-inch low-frequency transducers with copper-clad aluminum voice coils for reduced distortion and enhanced bass performance
• 1-inch exit compression driver with a 120° x 60° PT rotatable waveguide for even, consistent coverage
• Symmetrical Field Geometry (SFG) technology and Filtered Array Technology (FAT) for optimized sound clarity and smoother power response
• Frequency range of 53 Hz to 20 kHz and frequency response of 65 Hz to 20 kHz for full-range audio reproduction
• 94 dB SPL sensitivity at 1W/1m and 120 dB maximum SPL for high output and clear sound in larger spaces
• 375W continuous power handling (750W program, 1500W peak) and AES standard power rating of 350W (1400W peak)
• Rugged 12 mm and 15 mm multi-ply hardwood plywood enclosure with JBL's DuraFlex finish for durability and professional appearance
• Heavy-duty, powder-coated 16 gauge perforated steel grille with acoustically transparent foam backing for driver protection
• Weather-resistant IP53 rating for reliable performance in both indoor and semi-outdoor applications
• Flexible mounting options with M8 attachment points for U-bracket, OmniMount-compatible brackets, and stand mount accessory
• Neutrik Speakon NL4 connectors and covered barrier strip terminals for secure and flexible input options
• Compact design (26.75 x 9.37 x 10 inches, 40.9 lbs) for easy handling and installation in various environments

Specifications

System

• Frequency Range (-10 dB): 53 Hz - 20 kHz
• Frequency Response (±3 dB): 65 Hz - 20 kHz
• Horizontal Coverage: 120°
• Vertical Coverage: 60°
• Directivity Factor (Q): 8.1 (avg. 500 Hz - 16 kHz)
• Directivity Index (DI): 6.9 dB (avg. 500 Hz - 16 kHz)
• System Sensitivity (1W @ 1m): 94 dB SPL
• Rated Maximum SPL (1m): 120 dB
• System Nominal Impedance: 8 Ohms
• Long-Term System Power Rating (Continuous/Program/Peak): 375 W / 750 W / 1500 W
• AES Standard Power Rating: 700 W
• Crossover Frequency: 2.1 kHz

Transducers

• Low Frequency Driver: 2 x JBL 228H, 205 mm (6 in) SFG driver with 64 mm (2.5 in) edge wound voice coil
• High Frequency Driver: 1 x 2408H-1, 25 mm (1 in) exit compression driver, 38 mm (1.5 in) voice coil
• High-Frequency Waveguide: PT-D126HF-1 (field rotatable)

Physical

• Enclosure: 12 mm and 15 mm exterior grade multi-ply hardwood plywood
• Suspension Attachment: 6 x M8 points; 1 top, 3 bottom, 2 rear. 4 x M6 rear for MultiMount MM-120-BT
• Finish: Black DuraFlex finish. White (WH) available upon request.
• Optional Weather Resistant Versions: WRC & WRX available upon request
• Grille: Powder coated 16 gauge perforated steel, acoustically transparent foam backing (grille cloth backing on white units)
• Input Connectors: Neutrik Speakon NL4 (2 wired in parallel), plus CE-compliant covered barrier strip terminals. Barrier terminals accept up to 5.2 sq mm (10 AWG) wire or max width 9 mm (0.375 in) spade lugs. NL4's +1/-1 in parallel with barrier strip (+2/-2 loop through).
• Environmental Specifications: Mil-Std 810; IP53 per IEC 529. For higher environmental ratings, use WRC or WRX.
• Dimensions: 26.75 x 9.37 x 10 inches
• Weight: 40.9 lbs
• Optional Accessories: MTU-28 U-Bracket, 365469-001 M8 x 38mm Tee Knot Thumbscrew Kit for use with BMB-200k or K&M 195/8 stand mount accessory