Diamond 159

three-way floorstanding speaker, 2x20cm woofers and 13cm midrange, 25-200W power handling, 89dB/W/m sensitivity

Product information

The Wharfedale Diamond 159 is Wharfedale's flagship Diamond floorstanding speaker - designed to replace the superbly popular Diamond 10 range. The Wharfedale Diamond 159 looks superb, thanks to its new cabinet design and are available in four wood finishes. 

These speakers offer a very competitive 89dB/W/m sensitivity, making them an ideal partner for a wide range of amplification. These speakers are designed to fit in with the rest of the Diamond range (including older models) both in terms of sound and looks. 

The Diamond 159 is the perfect choice for many systems - offering a larger soundstage and better bass response than its bookshelf counterparts in the new Diamond range. Equally at home in an AV setup as with hi-fi applications, the Diamond 159 is very reasonably priced - offering exceptional performance without stressing your pocket!

Design Improvements 

The Wharfedale Diamond 159 offers new Kevlar-cone units wich provide greatly improved mid and bass response. Built in to the low frequency and midrange cones are semi-elliptical ‘break-up’ areas which have the effect of evening out the response across the audible range.

Also featured is a new bass-reflex port - offering technologies usually reserved for much higher-end products. This allows a nice, clean transition between the pressure variation in the cabinet and the low frequency sound developed in the room.

The cabinet shape adds to the impressive sound; constructed to rectilinear shapes, the internal volume is maximised whilst the bass response delivers an impact at an optimal depth. The new composite multigrain material used to construct the cabinets results in a sturdy design with minimal cabinet colouration and minimal internal sound leakage. 


- Format: 3-way standmount
- Bass Driver(s): 2x 200mm woven Kevlar
- Midrange Driver: 130mm woven Kevlar
- Tweeter: 25mm soft dome
- Sensitivity: 89dB
- Recommended Amp Power: 25-200W
- Nominal Impedance: 8 Ohms
- Frequency Response: 35Hz: 20kHz
- Cabinet Volume: Mid 8L; Bass 66.3L
- Dimensions (HxWxD): 1128x250x424mm
- Weight (each): 30.4kg

  General Description 3-way Floorstanding Speaker
  Enclosure Type Bass Reflex
  Transducer Complement 3-way
  Bass Driver 2 x 200mm Woven Kevlar Cone
  Midrange Driver 130mm Woven Kevlar Cone
  Treble Driver 25mm Soft Dome
  AV Shield No
  Sensitivity (2.83V @ 1m) 89dB
  Recommended Amplifier Power 25-200W
  Peak SPL 110dB
  Nominal Impedance 8 Ohms Compatible
  Minimum Impedance 3.1 Ohms
  Frequency Response (+/-3dB) 35Hz - 20kHz
  Bass Extension (-6db) 32Hz
  Crossover Frequency 400Hz & 2.8kHz
  Cabinet Volume (in litres) Mid Internal 8L
  Dimensions (H x W x D) 1128 x 250 x 424 (mm)
  Net Weight 30.4kg/pcs