WHARFEDALE PRO GPL-28B

Featuring dual 2.5″ LF voice coil drivers in a precisely tuned band-pass enclosure, GPL-28B offers deep, musical bass response while maintaining a discreet footprint ideal for bars, clubs, and performance venues. The cabinet supports both Discrete and Parallel operating modes, providing installation flexibility depending on amplifier configuration and desired output.

Constructed from birch plywood and finished in durable black or white paint, GPL-28B is built for long-term reliability in demanding environments. 4 pole speaker connectors and barrier strip connections ensure secure and simple integration into professional audio systems.

Handling 400 W continuous (1600 W peak) power and achieving 135 dB max SPL at 1 m, GPL-28B delivers powerful, accurate low-end performance. FIR preset libraries and EASE .gll files are available to optimise system alignment with GPL full-range models.

• Active or Passive: Passive
• System Type: Subwoofer
• System Continuous Power: 400 W
• System Programme Power: 800 W
• System Peak Power: 1600 W
• Max SPL @ 1m: 135 dB (Half Space)
• Freq Range (-10 dB): 48 Hz - 150 Hz
• Bluetooth: No
• IP Certification: None
• Driver Brand: Wharfedale Pro
• LF Driver Size: 2 x 8"
• LF Voice Coil Size: 2.5"
• LF Rated Impedance: Parallel: 4Ω Discrete: 8Ω x 2
• LF Power (RE:AES2-2012): 400 W Parallel / 200 W x 2 Discrete W
• Preset Library: Yes
• Input Connector: 2 x 4 Pole Speaker Connector, 1 x Barrier Strip
• Enclosure Material: Birch Plywood
• Grille Material and Finish: Steel Black or White
  
  Finish: Black or White Tough-Tone paint
• Handles: 2
• Deployment: Ground, Flying
• Pole Mount: None
• Brackets Included: No
• Rigging: Yes
• M10: 16
• Sensitivity 2.83 V / 1 M: Half space 103 dB
• System Rated Impedance: Parallel: 4 Ω Discrete: 8 Ω x 2
• Recommended HPF = BW 18 dB/OCT.: 48 Hz
• Transformer (T): No
• Included Accessory: Quick Start Guide