introducing the

Z 4

by Quad






“After taking a new approach to ribbon tweeter design using a unique sandwich formation, an exceptionally robust, high power speaker has been engineered, yet with the delicate sound conventional ribbon speakers are known for.

Z Series is housed beautifully curved piano lacquered cabinets, available in black, white and rosewood.”


  • Enclosure: type bass reflex
  • Bass driver: 3x 165mm woven kevlar
  • Transducer complement: 3-way
  • Midrange driver: 150mm woven kevlar
  • Treble driver: 90x12mm true ribbon
  • AV shield: No
  • Sensitivity (1W @ 1m): 90db
  • Recommended amplifier power: 60-250w
  • Peak SPL: 115dB
  • Nominal impedance:
  • Minimum impedance: 3.6Ω
  • Frequency response (+/-3dB): 47Hz – 20kHz
  • Bass extension (-6dB): 40Hz
  • Crossover frequency: 300Hz & 3.5KHz
  • Cabinet Volume (in litres): 43L
  • Dimensions (mm): 1,175 x 267 x 340
  • Weight: 23.5kg
  • Finish: Piano Black / Piano White / Piano Rosewood