Through both electronic and software optimization, the new DELTA-AXF12 model now features internal FIR filters using ‘DNA’ harvested from the flagship WLA active line array and monitors system development. This FIR filtering has brought independent control of magnitude and phase, more detailed equalization and optimization of frequency and power response. In the end….this results in highly improved system performance. The amplifiers have also been optimized, resulting in 800 W Continuous power.
The new DELTA-AXF models have the same solid Baltic birch plywood construction and the same custom made Wharfedale Pro drivers as their predecessors, but with the new FIR filters the sonic improvements are clear. The updated ‘AXF’ electronics are fully interchangeable with existing DELTA active models and can be quickly retro-fitted by Service engineers. AXF models are also perfectly tuned to be used with the current DELTA-AX15B and DELTA-AX18B active subwoofers.
The graph shows phase response.
Frequency is on the X axis and time (expressed in degrees) is on the Y axis.
BIRCH PLYWOOD
Delta-AXF 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.
Delta-AXF is also covered in our most durable and hard wearing black paint finish. This ensures that a Delta-AXF will always look as good as the day you unboxed it.
ROUTED LOGO
Delta-AXF features a routed Wharfedale Pro logo.
It is also a logo to be proud of. A logo that lets your audience know that the sound of your even will be of the highest possible quality.
SPECIFICATIONS
| Model Name | DELTA-AXF12 |
| System Type | Active 12” 2-way Bi-Amplified |
| Frequency Response (+/-3 dB) | 60 Hz – 20 KHz |
| Frequency Range (-10 dB) | 55 Hz – 20 KHz |
| Calculated Maximum SPL @1m | 130.5 dB |
| Low Frequency Transducer – Size ( mm / inches) | 332 mm / 12″ |
| Coil Size ( mm / inches) | 75 mm / 3″ |
| Impedance | 4 Ω |
| High Frequency Transducer – Type | Compression Driver |
| Coil Size ( mm / inches) | 51.2 mm / 2″ |
| Exit Size ( mm / inches) | 35.6 mm / 1.4″ |
| Diaphragm Material | Titanium |
| Impedance | 8 Ω |
| Nominal Coverage (H x V) | 90° x 45° |
| Amplifiers | |
| Amplifier Design | Class D |
| Power Rating: | 1600 W Peak (1400 W LF + 200 W HF), 800 W Continuous (700 W LF + 100 W HF) |
| Power On Protection | Power Switch On/Off Mute |
| Thermal Protection | Amplifier Shut Down. Auto Reset |
| Low Line Voltage Shut Down | 80% Nominal Line Voltage |
| Driver Protection | Independent LF and HF Limiters |
| DC and Short Protection | Yes |
| Clip Limiter | Turns on Approx 600 W Output |
| Limiter Indicator | Red LED |
| Power Indicator | Green LED |
| Connectors | |
| Input A – type | Switchable Balanced Mic or Line Level Input |
| Input Sensitivity | Mic:-40 dBu Line:0 dBu |
| Maximum Input Level | 22 dBu |
| Input Connector | XLR 1/4〞Combo jack / 2 x RCA |
| Input Impedance | Balanced:20 KΩ Unbalanced:10 KΩ |
| Line Output Connector | Switchable LOOP/MIX Balanced pin XLR Connector |
| Impedance Balanced | Balanced: 200 Ω Unbalanced:100 Ω |
| Loop Gain | Mic:69 dB, Line:29 dB |
| AC Power details – Power Supply | High Efficiency Switching Mode Power Supply |
| AC Power Options | AC100-120 V~/220-240 V~,50/60 Hz |
| Hardware – Rigging | M10 x 6 |
| Pole Mount | Dual Angle (0⁰ or 10⁰) 35 mm Pole Socket |
| Enclosure Material and finish | 15 mm Plywood |
| Colour Options | Black Paint |
| Grille Material & Finish | 1.5 Steel |
| Unpacked dimensions – Height | 640 mm / 25.2″ |
| Width (Front) | 390 mm / 15.35″ |
| Width (Back) | 241.2 mm / 9.5″ |
| Depth | 373 mm / 14.69″ |
| Packed Dimensions – Height | 745 mm / 29.3” |
| Width (Front) | 566 mm / 22.3” |
| Width (Back) | 328 mm / 12.9” |
| Depth | 464 mm / 18.3” |
| Net Weight ( kg / lbs) | 26.5 kg / 58.3 lbs |
| Gross Weight ( kg / lbs) | 30.0 kg / 66.0 lbs |
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