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SPECIFICATII TEHNICE PENTRU QUAD Z-4
| General description | Floor-standing |
| Enclosure type | bass reflex |
| Bass Driver | 3 x 165mm Woven Kevlar |
| Transducer complement | 3-way |
| Mid Range 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 | 4Ω |
| 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) | 1175 x 267 x 340 |
| Weight | 23.5kg |
| Finish | Piano Black / Piano White / Piano Rosewood |
| Accessories | user manual, certificate, spike set |