DELTA-AXF Making the dif-FIR-ence
Active plywood loudspeakers – with internal FIR DSP
- Internal FIR signal processing
- Proven ‘DELTA Active’ reliability
- Practical ‘DELTA Active’ design
- Retro-fittable electronics
- Compatible with DELTA active subwoofers
- Increased Continuous Power. Now 800 Watts
We just can’t help making things better. We are always looking for improvements that can be made. Our R&D team cannot stop taking everything that they see to pieces. They try different components, they update algorithms and they explore different physical system configurations. Dismantling…..measuring….testing….measuring……but then a break through comes.
Their work has now unlocked the true potential of the DELTA Active full range models which have been a trusted and reliable audio solution since their introduction in 2014.
Through both electronic and software optimisation, the new DELTA-AXF12 and AXF15 models now feature 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 equalisation and optimisation of frequency and power response. In the end….this results in highly improved system performance. The amplifiers have also been optimised, 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.
Delta-axF12
- 12″ two-way bi-amplified active loudspeaker
- 800 watts Continuous power
- 1600 watts Peak power
- 90° x 45° dispersion
- 2″ HF Compression driver
- 3″ LF voice coil
- Advanced Internal FIR DSP
- 130.5 dB Max SPL @ 1 meter
Delta-axF15
- 15″ two-way bi-amplified active loudspeaker
- 800 watts Continuous power
- 1600 watts Peak power
- 90° x 45° dispersion
- 2″ HF Compression driver
- 3″ LF voice coil
- Advanced Internal FIR DSP
- 131.5 dB Max SPL @ 1 meter
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.
NEED A SUB ?
Delta-AXF12 and Delta-AXF15 are perfectly matched with the Delta-AX15B and Delta-AX18B subwoofers.
Full Range
Delta-AXF12 and Delta-AXF15 use 2 x Class D amplifiers. These are specifically tuned and selected to be the perfect match for the HF and LF drivers inside.
With multiple analogue inputs, Delta-AXF full range models are ready to connect to whatever signal source you have.
Durable black paint
finish to endure the rigours of the road
2 x Class D amplifiers
supply precise power to the drivers.
2 x comfortable
handles for
easy
transportation
2 channel mixer.
Channel 1 is mic/line selectable.
Channel 2 has RCA inputs,
Balanced XLR or Balanced jack inputs
Internal FIR filters. Unseen....
but definitely heard!
Analogue EQ controls
for hands-on
system tweaking
Balanced line output
for easy linking
to other active loudspeakers
in the system
6 x M10 rigging
points makes
installation simple
SPECIFICATIONS
| Model Name | DELTA-AXF12 | DELTA-AXF15 |
|---|---|---|
| System Type | Active 12” 2-way Bi-Amplified | Active 15” 2-way Bi-Amplified |
| Frequency Response (+/-3 dB) | 60 Hz – 20 KHz | 50 Hz – 20 KHz |
| Frequency Range (-10 dB) | 55 Hz – 20 KHz | 45 Hz – 20 KHz |
| Calculated Maximum SPL @1m | 130.5 dB | 131.5 dB |
| Low Frequency Transducer – Size ( mm / inches) | 332 mm / 12″ | 404 mm / 15″ |
| Coil Size ( mm / inches) | 75 mm / 3″ | 75 mm / 3″ |
| Impedance | 4 Ω | 4 Ω |
| High Frequency Transducer – Type | Compression Driver | Compression Driver |
| Coil Size ( mm / inches) | 51.2 mm / 2″ | 51.2 mm / 2″ |
| Exit Size ( mm / inches) | 35.6 mm / 1.4″ | 25 mm / 1” |
| Diaphragm Material | Titanium | Titanium |
| Impedance | 8 Ω | 8 Ω |
| Nominal Coverage (H x V) | 90° x 45° | 90° x 45° |
| Amplifiers | ||
| Amplifier Design | Class D | Class D |
| Power Rating: | 1600 W Peak (1400 W LF + 200 W HF), 800 W Continuous (700 W LF + 100 W HF) | 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 | Power Switch On/Off Mute |
| Thermal Protection | Amplifier Shut Down. Auto Reset | Amplifier Shut Down. Auto Reset |
| Low Line Voltage Shut Down | 80% Nominal Line Voltage | 80% Nominal Line Voltage |
| Driver Protection | Independent LF and HF Limiters | Independent LF and HF Limiters |
| DC and Short Protection | Yes | Yes |
| Clip Limiter | Turns on Approx 600 W Output | Turns on Approx 650 W Output |
| Limiter Indicator | Red LED | Red LED |
| Power Indicator | Green LED | Green LED |
| Connectors | ||
| Input A – type | Switchable Balanced Mic or Line Level Input | Switchable Balanced Mic or Line Level Input |
| Input Sensitivity | Mic:-40 dBu Line:0 dBu | Mic:-40 dBu Line:0 dBu |
| Maximum Input Level | 22 dBu | 22 dBu |
| Input Connector | XLR 1/4〞Combo jack / 2 x RCA | XLR 1/4〞Combo jack / 2 x RCA |
| Input Impedance | Balanced:20 KΩ Unbalanced:10 KΩ | Balanced:20 KΩ Unbalanced:10 KΩ |
| Line Output Connector | Switchable LOOP/MIX Balanced pin XLR Connector | Switchable LOOP/MIX Balanced pin XLR Connector |
| Impedance Balanced | Balanced: 200 Ω Unbalanced:100 Ω | Balanced: 200 Ω Unbalanced:100 Ω |
| Loop Gain | Mic:69 dB, Line:29 dB | Mic:69 dB, Line:29 dB |
| AC Power details – Power Supply | High Efficiency Switching Mode Power Supply | High Efficiency Switching Mode Power Supply |
| AC Power Options | AC100-120 V~/220-240 V~,50/60 Hz | AC100-120 V~/220-240 V~,50/60 Hz |
| Hardware – Rigging | M10 x 6 | M10 x 6 |
| Pole Mount | Dual Angle (0⁰ or 10⁰) 35 mm Pole Socket | Dual Angle (0⁰ or 10⁰) 35 mm Pole Socket |
| Enclosure Material and finish | 15 mm Plywood | 15 mm Plywood |
| Colour Options | Black Paint | Black Paint |
| Grille Material & Finish | 1.5 Steel | 1.5 Steel |
| Unpacked dimensions – Height | 640 mm / 25.2″ | 700 mm / 27.56″ |
| Width (Front) | 390 mm / 15.35″ | 446 mm / 17.56″ |
| Width (Back) | 241.2 mm / 9.5″ | 281.4 mm / 11.08″ |
| Depth | 373 mm / 14.69″ | 406 mm / 15.98″ |
| Packed Dimensions – Height | 745 mm / 29.3” | 803 mm / 31.6” |
| Width (Front) | 566 mm / 22.3” | 638 mm / 25.1” |
| Width (Back) | 328 mm / 12.9” | 366 mm / 14.4” |
| Depth | 464 mm / 18.3” | 498 mm / 19.6” |
| Net Weight ( kg / lbs) | 26.5 kg / 58.3 lbs | 30.5 kg / 67.1 lbs |
| Gross Weight ( kg / lbs) | 30.0 kg / 66.0 lbs | 35.4 kg / 77.9 lbs |