Sonus faber aida graphite - pair of floorstanding speakers

REFERENCE FLOORSTANDING SPEAKER - 3 AND A HALF WAYS - "STEALTH REFLEX SYSTEM" LOADING - CUSTOM 29 XTR-06 TWEETER WITH ARROW POINT DAD TECHNOLOGY - CUSTOM 180 MM M18 XTR-08 MID-BASS UNIT LOCATED IN SEPARATE AND OPTIMIZED ACOUSTIC CHAMBER WITH CCAW/KAPTON COIL, ANTI-RESONANT BASKET ASSEMBLED WITH GUN METAL AND AVIONAL, TRIPLE RING KELLOG/GOELLER MAGNET - DUAL UNIT WOOFER 220 MM W22 XTR-12 WITH FOAM AND CELLULOSE SANDWICH MEMBRANE - INFRA WOOFER 320 SW32 XT-08 WITH HONEYCOMB AND BNANOCARBON MENBRANE - LYRE-SHAPED CABINET WITH DOUBLE CURVARURA SPECIAL ANTI-RESONANT TECHNOLOGIES WITH DECOUPLING SYSTEMS AND MASS DAMPERS - SOUND FIELD SHAPER SYSTEM WITH SPECIFICALLY DEVELOPED AND FULLY ADJUSTABLE TWEETER AND MIDRANGE SPEAKERS FOR PROPER DIRECT/REFLECTED SIGNAL BALANCE - FREQUENCY RESPONSE 20-35000 HZ - SENSITIVITY 92 DB/W/M - NOMINAL IMPEDANCE 4 OHMS - RECOMMENDED AMPLIFIER WITH POWER BETWEEN 100 AND 1000 W - GRAPHITE FINISH - DIMENSIONS: 482 X 1725 X 780 (WXAXP) - WEIGHT 165 KG - PRICE REFERS TO A SINGLE SPEAKER