ขาย Polk Audio CSI A4 (Cherry) ราคาที่ดีที่สุด

ประเภทลำโพง CENTER กำลังขับ(RMS) 180 วัตต์ 8 OMHS ลักษณะ BOOK SHLF ขนาดดอกลำโพง CENTER 5.5 นิ้ว/2ทาง ค่าความไวตอบสนอง 89 DB.ค่าความต้าน ทาน 8 OHMS ขนาด:50.8 X 17.5 X 22.2 ระบบเสียงTHX,DOLBYNR,DOLBY SURROUND.CH CSiA4 Features: •The proprietary curved, 6-layer DAHLI enclosure design creates the optimal shear damping for a more rigid, acoustically inert enclosure and minimal cabinet resonances. CSiA4 cabinets are designed for clean, accurate sound. •Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes. •Polk's proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds. •Durable, computer-modeled, injection-molded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound. •The RTiA Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi-driver speakers, which degrades the quality of the audio and collapses the soundstage. •Patented Acoustic Resonance Control® (ARC) technology suppresses cabinet resonance that causes distortion to ensure clear and natural sound. •Beautiful curved furniture-grade hardwood veneer cabinet finishes, with sleek trim accents in black or cherry. •Computer-modeled anti-diffraction grilles enhance the good looks while minimizing sonic interference. •All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems. •Gold-plated, professional-style 5-way binding posts, for the most secure connection options. Audio Dimensions - Product Weight (each) 15.5 pounds Dimensions Cabinet Dimensions - Depth 8 3/4 (22.23cm) " Dimensions Cabinet Dimensions - Height 6 7/8 (17.46cm) " Dimensions Cabinet Dimensions - Width 20 (50.80cm) " Driver Complement Midrange - Diameter 5 1/4 (13.34cm) " Driver Complement Midrange - Quantity 2 Driver Complement Midrange - Type Dynamic Balance drivers with polymer composite cones and rubber surrounds Driver Complement Tweeter - Diameter 1 (2.54cm) " Driver Complement Tweeter - Quantity 1 Driver Complement Tweeter - Type Dynamic Balance silk polymer dome tweeters Electrical - Efficiency 89 dB Electrical - Inputs 5-way binding posts Electrical - Lower -3dB Limit 65 Hz Electrical - Nominal Impedance 8 ohms Electrical - Recommended Amplifier Power 20-180 watts per channel Electrical - Total Frequency Response 55Hz-27kHz Electrical - Upper -3dB Limit 26 kHz Shipping - Total Shipping Weight 20 pounds Shipping - Unit of Measure Each Warranty - Speaker Warranty 5 years