Wharfedale Pro
Wharfedale Pro GPL-28B Passive Subwoofer
Wharfedale Pro GPL-28B Passive Subwoofer
GPL-28B - 2 x 8" subwoofer. 800 W Programme. Parallel and Discrete modes. 135 dB Max SPL
GPL SERIES
GENERAL PURPOSE LOUDSPEAKERS
- Compact birch plywood construction
- Beyma Coaxial design drivers
- Multiple mounting options (Yoke brackets included)
- Conical or 80° x 40° (HQ models) dispersion options
- Band-pass or Bass Reflex subwoofers
- speakON compatible and barrier strip connections
- FIR Preset libraries and EASE .gll files available for download
GPL-28B
-
400 watts AES (RMS)
- Discrete and Parallel modes
- 400 W AES (Continuous) Parallel
- 800 W Programme – Parallel
- 1600 W Peak – Parallel
- 2.5” LF Voice coils
- 135 dB Max SPL @ 1 m
BIRCH PLYWOOD
All GPL models use premium Baltic birch plywood construction.
Not only does this create a solid and durable cabinet, but it also contributes to the overall sound and character.
GPL is also covered in our most durable and hard wearing Rhino Rock paint finish. This ensures that a GPL loudspeaker will always look as good as the day you installed it.
INSTALLATION HARDWARE
Installations can be complicated enough, so Wharfedale Pro have made GPL series as easy as possible.
GPL-5 and GPL-8 are quickly fixed to a wall using the WPB-3 wall bracket or the included steel yoke. GPL-12, GPL-12HQ, GPL-15 and GPL-15HQ are quickly fixed to a wall using the WPB-1 wall bracket or the included steel yoke.
These models are also compatible with Powerdrive Series 100 or Omnimount Series 60 installation brackets.
SYSTEM SOLUTIONS
Building a system ? How about this one for inspiration?
GPL is engineered for any scale of system. Live or install, there is a GPL solution.
The system in the diagram uses our Wharfedale Pro DP series amplifiers with downloadable presets for DP-N and DP-F models.
SPECIFICATIONS
| Model Name | GPL-28B |
|---|---|
| System Type | 2 x 8″ Passive |
| Configuration | Dual Xband-pass Subwoofer |
| Frequency Response (+/-3 dB) (DP-N preset) |
/ |
| Frequency Range (- 10 dB) (DP-N preset) |
48 Hz – 150 Hz |
| Sensitivity 2.83 V/1 m | / |
| Sensitivity 2.83 V/1 m half space | 103 dB (half space) |
| Calculated Maximum SPL @1 m | 135 dB (half space) |
| System Peak SPL* | 141 dB (half space) |
| *level at 1 m using pink noise with crest factor 4, with dedicated preset. | |
| System Rated Impedance | Parallel:4 Ω Discrete:8 Ω x 2 |
| Low Frequency Transducer | |
| Size | 211.5 mm / 8” |
| Voice coil size | 63.5 mm / 2.5″ |
| LF Frame Material | Aluminium |
| Driver brand | Wharfedale Pro |
| POWER | |
| System Continuous Power (W) | 400 W Parallel / 200 W x 2 Discrete |
| System Programme Power (W) | 800 W Parallel / 400 W x 2 Discrete |
| System Peak Power (W) | 1600 W Parallel / 800 W x 2 Discrete |
| Recommended HPF = BW 18 dB/oct. | 42 Hz |
| Input Connector | 2 x speakON compatible / 1 x Barrier Strip |
| Rigging & Hardware: | 16 x M10 threaded rigging points. |
| Included Accessories | |
| Handle | 2 on Sides |
| Enclosure | |
| Cabinet Type | Rectangle |
| Enclosure Material and finish | 18 mm plywood / Rhino Rock |
| Colour Options | Black paint, White on request |
| Grille Material & Finish | Powder coated steel |
| Dimensions – Unpacked (mm / inches): | |
| Height | 300 mm / 11.8″ |
| Width Front | 740 mm / 29.1″ |
| Width Rear | 740 mm / 29.1″ |
| Depth | 450 mm / 17.7″ |
| Dimensions – Packed (mm / inches): | |
| Height | 370 mm / 14.6″ |
| Width Front | 800 mm / 31.5″ |
| Width Rear | 800 mm / 31.5″ |
| Depth | 510 mm / 20.1″ |
| Weight | |
| Net Weight | 25.0 kg / 55 lbs |
| Gross Weight | 27.0 kg / 59.4 lbs |
