Wharfedale Pro - DELTA-AXF15 15" Active - with internal FIR DSP
WHA-DELTA-AXF15
DELTA-AXF15 is a 15″ bi-amplified active loudspeaker from our upgraded DELTA-AXF Series — delivering increased power, improved clarity, and professional FIR-processed performance in a robust plywood enclosure.
Driven by an enhanced amplifier module providing 800 W continuous (1600 W peak) power, DELTA-AXF15 offers impressive output with a max SPL of 131.5 dB @ 1 m. Its custom-designed 15″ LF driver with a 3″ voice coil delivers tight, punchy low-end, while a 2″ HF compression driver ensures clear, articulate highs with a controlled 90° x 45° dispersion for consistent coverage.
Thanks to newly integrated internal FIR DSP, the system benefits from precise magnitude and phase alignment, smoother crossover performance and enhanced overall definition — technology derived from our WLA-1A System.
Constructed from durable birch plywood, DELTA-AXF15 maintains the proven reliability of the DELTA Active range while unlocking higher performance and improved voicing, making it ideal for live sound, installations and rental applications.
| Active or Passive | Active |
| System Type | Full-Range |
| Configuration | 2-way |
| System Continuous Power | 800 W |
| System Peak Power | 1600 W |
| Max SPL @ 1m | 131.5 dB |
| Freq Range (-10 dB) | 45 Hz - 20 KHz |
| Freq Response (+/-3 dB) | 50 Hz - 20 KHz |
| IP Certification | None |
| Driver Brand | Wharfedale Pro |
| LF Driver Size | 15" |
| LF Voice Coil Size | 3″ |
| LF Rated Impedance | 8 Ω |
| HF Driver Type | Compression Driver |
| HF Voice Coil Size | 2″ |
| HF Diaphragm Material | Titanium |
| HF Exit Size | 1″ |
| HF Power (RE:AES2-2012) | 50 W |
| HF Rated Impedance | 8 Ω |
| HF Nominal Coverage (H x V) | 90° x 45° |
| Input Connector | 1/4” jack / XLR combo / 2 x RCA |
| Waveguide Type | Elliptical |
| Enclosure Material | Birch Plywood |
| Grille Material and Finish | Steel Black |
| Finish | Black Tough-Tone |
| Handles | 2 |
| Deployment | Flying, Ground, Pole |
| Pole Mount | Dual Angle (0° / 10°) 35 mm |
| Rigging | Yes |
| M10 | 6 |
| Sensitivity 2.83v / 1m | n/a dB |
| System Rated Impedance | n/a |
| Crossover Frequency | 2.0 kHz |
| Recommended HPF = BW 18 dB/OCT. | 45 Hz |
| Amplifier design | Class D |
| EQ Type | None |
| Active loudspeaker Input Impedance | Balanced: 20K Ω / Unbalanced: 10K Ω |
| Link Connector | pin XLR |
| Input sensitivity | Mic: -40 dBu / Line: 0 dBu |
| Max input level | 22 dBu |
| Line output | Switchable LOOP/MIX Balanced Pin XLR |
| Main Power | AC100-120 V~/220-240 V~,50/60 Hz |
| Power Supply | High Efficiency SMPS |
| Included Accessory | Quick Start Guide, AC Cable |
| Unpacked - Height (mm) | 700 |
| Unpacked - Width Front (mm) | 446 |
| Unpacked - Width Rear (mm) | 281.4 |
| Unpacked - Depth (mm) | 406 |
| Packed - Height (mm) | 803 |
| Packed - Width Front (mm) | 638 |
| Packed - Width Rear (mm) | 366 |
| Packed - Depth (mm) | 498 |
| Weight - Nett (Kg) | 30.5 |
| Weight - Gross (Kg) | 35.4 |
All prices are exclusive of GST and freight, which are automatically calculated on order confirmation and/or checkout. Items in stock are generally dispatched within 1-2 working days of order being confirmed. Standard MDR terms and conditions (available below) apply to all orders.





