DELTA-AX Active evolution
Active plywood loudspeakers. 12″, 15″ full range with 15″ and 18″ Subs
- Class D amplified active loudspeakers
- Custom Wharfedale Pro transducers
- Premium Baltic Birch plywood construction
- 2-way models feature internal Qubit DSP
- Subwoofers with Low Pass filter control
- 4-way rubberised handles
- Large voice coils
- Impressive SPL figures
- For install or on the road
Wharfedale Pro DELTA Series can be seen and heard around the world. Day in, day out, DELTA loudspeakers deliver the sound for the most demanding of performers and venues. DELTA loudspeakers have earnt their own reputation as a leading series of active and passive loudspeakers.
October 2019 sees the latest evolution of the DELTA active models. The new DELTA-AX series of active loudspeakers.
Using the same well-proven custom made drivers and the same premium Baltic birch plywood construction as previous DELTA active models, the new family boasts improved amplification electronics to deliver exceptional power….AND reliability.
Need to spot the difference between an original DELTA active and the new DELTA-AX series? The new series are proudly sporting the iconic Wharfedale Pro logo, embossed into the top surface and they come with an eye-catching swing tag. In addition, a full cloth front grille protects the advanced drivers from moisture, insects and dust.
DELTA-AX
Four familiar models but now with iconic design and improved electronics. “Pro-active Improvements”
Delta-ax12
- 12″ two-way bi-amplified active loudspeaker
- 750 watts Continuous power
- 1500 watts Peak power
- 90° x 45° dispersion
- 2″ HF Compression driver
- 3″ LF voice coil
- Advanced Internal QuBit DSP
- 130 dB Max SPL @ 1 meter
Delta-ax15
- 15″ two-way bi-amplified active loudspeaker
- 750w Continuous power
- 1500 watts Peak power
- 90° x 45° dispersion
- 2″ HF Compression driver
- 3″ LF voice coil
- Advanced Internal QuBit DSP
- 131 dB Max SPL @ 1 meter
Delta-ax15B
- 15″ active subwoofer
- Low pass filter control
- Hi Pass link outputs
- 42 Hz – 200 Hz Frequency response
- 180° phase switch
- 4″ LF voice coil
- 900 watts Continuous
- 1800 watts Peak
- 130 dB Max SPL @ 1m
delta-AX18B
- 18″ active subwoofer
- Low pass filter control
- Hi Pass link outputs
- 38 Hz – 200 Hz Frequency response
- 180° phase switch
- 4″ LF voice coil
- 1000 watts Continuous
- 2000 watts Peak
- 132 dB Max SPL @ 1m
Birch PLywood
All Delta-AX 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-AX is also covered in our most durable and hard wearing black paint finish. This ensures that a Delta-AX will always look as good as the day you unboxed it.
routed logo
Delta-AX features a routed Wharfedale Pro logo.
This fresh design helps to distinguish between the original Delta-A models and the updated Delta-AX models.
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.
Full Range
The full range models (Delta-AX12 and Delta-AX15) 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-AX full range models are ready to connect to whatever signal source you have.
Subwoofers
The 15″ and 18″ active subwoofers use a single Class D amplifier to drive the LF transducer.
Inside the Delta-AX subwoofers is a highly efficient Class D amplifier.
The amplifier has been perfectly matched to the custom low frequency driver. This perfect combination leads to maximum efficiency and supreme output SPL.
SPECIFICATIONS
| Model Name | DELTA-AX12 | DELTA-AX15 | DELTA-AX15B | DELTA-AX18B |
|---|---|---|---|---|
| System Type | Active 12” 2-way Bi-Amplified | Active 15” 2-way Bi-Amplified | Active 15” Subwoofer | Active 18” Subwoofer |
| Frequency Response (+/-3 dB) | 60 Hz – 20 KHz | 50 Hz – 20 KHz | 42 Hz – 200 Hz | 38 Hz – 200 Hz |
| Frequency Range (-10 dB) | 55 Hz – 20 KHz | 45 Hz – 20 KHz | ||
| Calculated Maximum SPL @1 m | 130 dB | 131 dB | 130 dB | 132 dB |
| Low Frequency Transducer – Size (mm / inches) | 332 mm / 12″ | 404 mm / 15″ | 404 mm / 15″ | 470 mm / 18″ |
| Coil Size (mm / inches) | 75 mm / 3″ | 75 mm / 3″ | 101.6 mm / 4″ | 101.6 mm / 4″ |
| Impedance | 4 Ω | 4 Ω | 8 Ω | 8 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 | ||||
| Low-Frequency Power Amplifier RMS | 600 w (Class D) | 600 w (Class D) | 900 w (Class D) | 1000 w (Class D) |
| High-Frequency Power Amplifier RMS | 100 w (Class D) | 100 w (Class D) | NA | NA |
| Amplifier Protection | Yes | Yes | Yes | Yes |
| Power On Protection | Power switch on/off mute | Power switch on/off mute | Power switch on/off mute | Power switch on/off mute |
| Thermal Protection | Amplifier Shut Down. Auto Reset | Amplifier Shut Down. Auto Reset | Amplifier Shut Down. Auto Reset | Amplifier Shut Down. Auto Reset |
| Low Line Voltage Shut Down | 80% Nominal Line Voltage | 80% Nominal Line Voltage | 80% Nominal Line Voltage | 80% Nominal Line Voltage |
| Driver Protection | Independent LF and HF Limiters | Independent LF and HF Limiters | Yes | Yes |
| DC and Short Protection | Yes | Yes | Yes | Yes |
| Clip Limiter | Turns on Approx @ 650 w Output | Turns on Approx @ 650 w Output | Turns on Approx @ 900 w Output | Turns on Approx @ 1000 w Output |
| Limiter Indicator | Red LED | Red LED | Red LED | Red LED |
| Power Indicator | Green LED | Green LED | Green LED | Green LED |
| Connectors | ||||
| Input A – type | Switchable Balanced Mic or Line Level Input | Switchable Balanced Mic or Line Level Input | Balanced | Balanced |
| Input Sensitivity | Mic:-40 dBu Line:0 dBu | Mic:-40 dBu Line:0 dBu | Line:0 dBu | Line:0 dBu |
| Maximum Input Level | 22 dBu | 22 dBu | 22 dBu | 22 dBu |
| Input Connector | XLR 1/4” Combo jack / 2 x RCA | XLR 1/4” Combo jack / 2 x RCA | TRS jack and socket XLR | TRS jack and socket XLR |
| Input Impedance | Balanced:20 KΩ Unbalanced:10 KΩ | Balanced:20 KΩ Unbalanced:10 KΩ | 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 | pin XLR Connector | pin XLR Connector |
| Impedance Balanced | Balanced: 200 Ω Unbalanced:100 Ω | Balanced: 200 Ω Unbalanced:100 Ω | Balanced: 200 Ω Unbalanced:100 Ω | Balanced: 200 Ω Unbalanced:100 Ω |
| Loop Gain | 0 dB | 0 dB | 0 dB | 0 dB |
| AC Power details – Power Supply | High Efficiency SMPS | High Efficiency SMPS | High Efficiency SMPS | High Efficiency SMPS |
| AC Power Options | AC100-120 V~ / 220-240 V~,50/60 Hz | AC100-120 V~ / 220-240 V~,50/60 Hz | AC100-120 V~ / 220-240 V~,50/60 Hz | AC100-120 V~ / 220-240 V~,50/60 Hz |
| Power On Indicator | Green LED | Green LED | Green LED | Green LED |
| Hardware – Rigging | M10 x 6 | M10 x 6 | ||
| Enclosure Material and finish | 15 mm Plywood | 15 mm Plywood | 15 mm Plywood | 15 mm Plywood |
| Colour Options | Black Paint | Black Paint | Black Paint | Black Paint |
| Grille Material & Finish | 1.2 Steel | 1.2 Steel | ||
| Unpacked dimensions – Height | 640 mm / 25.2″ | 700 mm / 27.56″ | 471 mm / 18.54″ | 539 mm / 21.22″ |
| Width (Front) | 390 mm / 15.35″ | 446 mm / 17.56″ | 471 mm / 18.54″ | 539 mm / 21.22″ |
| Width (Back) | 241.2 mm / 9.5″ | 281.4 mm / 11.08″ | 471 mm / 18.54″ | 539 mm / 21.22″ |
| Depth | 373 mm / 14.69″ | 406 mm / 15.98″ | 600 mm / 23.62″ | 650 mm / 25.59″ |
| Packed Dimensions – Height | 745 mm / 29.3” | 803 mm / 31.6” | 556 mm / 21.89″ | 624 mm / 24.57″ |
| Width (Front) | 566 mm / 22.3” | 638 mm / 25.1” | 672 mm / 26.46″ | 722 mm / 28.43″ |
| Width (Back) | 328 mm / 12.9” | 366 mm / 14.4” | 672 mm / 26.46″ | 722 mm / 28.43″ |
| Depth | 464 mm / 18.3” | 498 mm / 19.6” | 543 mm / 21.38″ | 611 mm / 24.06″ |
| Net Weight (kg / lbs) | 27.9 kg / 61.2 lbs | 33 kg / 72.6 lbs | 33.1 kg / 72.82 lbs | 38.4 kg / 84.48 lbs |
| Gross Weight (kg / lbs) | 32.5 kg / 71.5 lbs | 38.5 kg / 84.7 lbs | 36.7 kg / 80.74 lbs | 44.3 kg / 97.46 lbs |