Wharfedale Pro i4 25W 4″ Installation Speaker
I Series
IP54 Certified Installation Loudspeakers
- 4.0″ LF driver
- 1.0″ HF dome tweeter
- ABS plastic construction
- Wall brackets included
- 8 Ω or 70v/100v versions available
- Available in Black or White
- Supplied in Pairs
- Supplied with adjustable mounting brackets
- IP54 certified
- ABS construction
- Full frontal steel grilles
- Perfect for distributed audio installations

IP54 Certified
The i series are IP54 Certified.
With IP54 certification, all i series installation loudspeakers are protected from limited dust ingress and are protected from water spray from any direction.
The pictures show some of the tests that take place during this certification process.
Full peace of mind – protection against extreme conditions.










Full metal bracket
The beauty of I series is that you don’t have to worry about finding specialist mounting hardware. The fully-adjustable mounting brackets are included.
These brackets are simple to install and give comprehensive adjustment angles due to the semi-circular ‘ball and socket’ design.
I series are easy to mount, easy to adjust and simple to securely lock in place. There is also a threaded insert for attachment of the included seismic restraint tether.

Around the back
Connections and input settings are discretely placed around the back.
I series use Phoenix connectors for bare wire connections.
The image shown is of the i6T transformer version. This shows the transformer tap control which is adjusted with a small screwdriver but is surface mounted which ensures that no accidental power changes can be made.

SPECIFICATIONS:
Model Name | i4 |
System Type | Passive |
Configuration | Two-way |
Frequency Response (+/-3 dB) | 100 Hz – 20 KHz |
Frequency Range (-10 dB) | 60 Hz – 20 KHz |
Sensitivity (2.83v/1 m) | 84 dB |
Calculated Maximum SPL @ 1 m | 105 dB |
System Rated Impedance | 8 Ω |
Low Frequency Transducer | |
Size | 4″ |
Voice Coil Size | 1″ |
Rated Impedance | 8 Ω |
LF Power (re:AES2-2012) | 25 w |
High Frequency Transducer | |
HF Driver Type | Soft dome tweeter |
Voice Coil Size | 1″ |
Diaphragm Material | Silk |
Rated Impedance | 8 Ω |
HF Power (re:AES2-2012) | 10 w |
Nominal Coverage (H x V) | 110° x 130° |
Power | |
System Continuous Power | 25 w |
System Programme Power | 50 w |
System Peak Power | 100 w |
Crossover frequency | 2.8 KHz |
Input Connector | Screw terminal |
Hardware | Wall mount bracket included |
Enclosure | |
Enclosure Material and finish | Plastic (ABS) |
Colour Options | Black or White |
Grille Material & Finish | Aluminium |
Dimensions – Unpacked | |
Height | 232 mm/9.1″ |
Width | 160 mm/6.3″ |
Depth | 148 mm/5.8″ |
Dimensions – Packed(1 PAIR) | |
Height | 335 mm/13.2″ |
Width | 425 mm/16.7″ |
Depth | 210 mm/8.3″ |
Weight | |
Net Weight (single speaker) | 2.1 kg / 4.62lbs |
Gross Weight(1PAIR,Include Bracket) | 5.86 kg / 12.9lbs |
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