{"product_id":"quad-z-4-z4-floorstanding-speakers","title":"Quad Z-4 (Z4) Floorstanding Speakers","description":"Z-4\u003cbr\u003e\u003cbr\u003e\nQUAD proudly announce Z Series, our new flagship ribbon loudspeaker range. 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.\u003cbr\u003e\u003cbr\u003e\n\nTechnical Specifications:- \u003cbr\u003e\u003cbr\u003e\n\nGeneral description: Floor-standing \u003cbr\u003e\nEnclosure type: bass reflex \u003cbr\u003e\nTransducer complement: 3-way \u003cbr\u003e\nBass Driver: 3 x carbon fibre cone\u003cbr\u003e \nMid Range Driver: 175mm woven kevlar cone\u003cbr\u003e \nTreble driver: 90x12mm true ribbon \u003cbr\u003e\nAV shield: No \u003cbr\u003e\nSensitivity (1W @ 1m): 90db \u003cbr\u003e\nRecommended amplifier power: 60-250w \u003cbr\u003e\nPeak SPL: 115dB \u003cbr\u003e\nNominal impedance: 4Ω \u003cbr\u003e\nMinimum impedance: 3.6Ω\u003cbr\u003e \nFrequency response (+\/-3dB): 47Hz - 20kHz \u003cbr\u003e\nBass extension (-6dB): 40Hz \u003cbr\u003e\nCrossover frequency: 300Hz \u0026amp; 3.5KHz \u003cbr\u003e\nCabinet Volume (in litres): 43L\u003cbr\u003e \nDimensions (mm): 1175 x 267 x 340 \u003cbr\u003e\nWeight: 23.5kg \u003cbr\u003e\nFinish: Piano Black \/ Piano White \/ Piano Rosewood \u003cbr\u003e\nAccessories: user manual, certificate, spike set ","brand":"Quad","offers":[{"title":"Quad Z-4 (Z4) - Piano White (pair)","offer_id":57412863656268,"sku":"QUADZ4-PW","price":2916.63,"currency_code":"GBP","in_stock":true},{"title":"Quad Z-4 (Z4) - Piano Rosewood (pair)","offer_id":57422772535628,"sku":"QUADZ4-PR","price":2916.63,"currency_code":"GBP","in_stock":true},{"title":"Quad Z-4 (Z4) - Piano Black (pair)","offer_id":57422772568396,"sku":"QUADZ4-PB","price":2916.63,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Quad-Z4-Piano-White.jpg?v=1777537597","url":"https:\/\/www.stoneaudio.co.uk\/products\/quad-z-4-z4-floorstanding-speakers","provider":"Stone Audio","version":"1.0","type":"link"}