REASON-X SERIES
Reasons to be cheerful...1, 2, 3....
- 12” and 15” full range 3-way models
- All new Z38 PE HF Compression drivers
- 8.0” mid range
- 3.0” LF coils with φ190mm ferrite magnets
- 2 models of 18” Sub-sub-woofers
- NOMEX subwoofer spiders
- Premium birch construction
- Dust proof foam behind front grilles

REASON-X12
500 W AES (RMS)
- 12″ 3-way passive loudspeaker
- All new Z38 PE HF compression driver
- 8.0″ mid range driver
- 12″ LF driver with 3.0″ voice coil
- 1000 watts Programme
- 2000 watts Peak
- 131 dB Max SPL @ 1 meter
REASON-X15
600 W AES (RMS)
- 15″ 3-way passive loudspeaker
- All new Z38 PE HF compression driver
- 8.0″ mid range driver
- 15″ LF driver with 3.0″ voice coil
- 1200 watts Programme
- 2400 watts Peak
- 133 dB Max SPL @ 1 meter
REASON-X18B
1000 W AES (RMS)
- 18″ passive subwoofer
- All new LF driver
- 4.0″ voice coil
- Aluminium basket design
- 35mm pole socket plus 2 side handles
- Max SPL @ 1 meter 139 dB
- 2000 w Program
- 4000 w Peak
REASON-X218B
2000 W AES (RMS)
- Dual 18″ passive subwoofer
- All new LF drivers
- 4.0″ voice coils
- Aluminium basket design
- 4 side handles
- Max SPL @ 1 meter 148 dB
- 4000 w Program
- 8000 w Peak
Compare The Series
Reasons to be cheerful, 1…2….3
A THREE-WAY SYSTEM – with matching subs.
Built exclusively to deliver incredible sonic definition at high volumes, Reason-X series brings new concepts and new qualities to become the premium pro audio loudspeaker series in the Wharfedale Pro portfolio.
The full range models (X12 and X15) feature an all-new Polyethylene flat diaphragm neodymium HF. This highly engineered Z38 HF compression driver brings extreme HF clarity. Enormous cooling fins disperse the heat generated and the unique 1.5 inch ring-shaped polyethylene flat diaphragm delivers a precious feeling of space and air to high frequencies.
The 100° x 70° waveguide is also rotatable, making Reason-X suitable for high quality installations and touring.
The mid-range comes from a custom Wharfedale Pro 8” driver with an aluminium basket and ferrite magnet and it delivers a warmth and clarity. Meanwhile, the LF driver boasts a 3.0” voice coil and large φ190mm ferrite magnet. This 3-way combination gives the Reason series full range models a frequency response and audio definition that simply has to be experienced.
The series is completed by 2 subwoofers. A single 18” and a floor destroying 148dB Max SPL dual 18”. New LF drivers have been created which feature NOMEX spiders for extreme suspension and durability. 4.0” voice coils and a newly designed aluminium basket make these LF transducers impossible to describe in words – they need listening to instead!
All models are constructed of premium birch and use thick steel front grilles for extreme durability.
REASON-X SERIES.
Put simply…3 is better than 2 !
The driver inside the Reason-X subwoofer has some very special features.
∮102.6 diameter voice coil.
(Thats OVER 4.0″ but we say 4.0″ because of number rounding)
Double-layer spider bonding.
Updated mute glue is used. This bonding can eliminate brittle cracking and reduces harmonic distortion.
112 g Membrane.
The Reason-X subwoofer driver has a heavier membrane which can withstand more power without breaking.
31 mm voice coil cavity.
A larger internal cavity for the coil windings allows Reason-X to have lower response by 5 Hz.
6.2 ohm impedance.
The impedance peak is higher in the Reason-X driver at 35 Hz. This results in superior low end strength.

The full range models (X12 and X15) feature an all-new Polyethylene flat diaphragm neodymium HF. This highly engineered Z38 HF compression driver brings extreme HF clarity.
Enormous cooling fins disperse the heat generated and the unique 1.5 inch ring-shaped polyethylene flat diaphragm delivers a precious feeling of space and air to high frequencies.
Advanced HF compression driver technology which deliveries breathtaking results.

A handy feature is the rotatable waveguide which allows Reason-X full range models to be used in the vertical or horizontal plane.
100° x 70°
OR
70° x 100° – the Horizontal and Vertical dispersion can easily be changed.

With dedicated drivers for each of the main bandwidths, 3-way systems bring enhanced frequency definition to the listening experience.
Each driver focused solely on its optimum frequency range.
A big picture!
Enjoy the 3-way space and definition !
| Name | Type | Size | File |
|---|---|---|---|
| EASE Library V7.5 | Software | 110.4 MB | Download |
| Wharfedale Pro Preset Library | Software | 1.48 MB | Download |
| REASON-X Series Data Sheets | Data Sheets | 3 MB | Download |
| REASON-X Series User Manual | User Manual | 3 MB | Download |
| REASON-X18B / REASON-X218B User Manual | User Manual | 3 MB | Download |
| REASON-X12 / REASON-X15 User Manual | User Manual | 3 MB | Download |
| REASON-X12 / REASON-X15 User Manual (German) | User Manual | 3 MB | Download |
