SPEAKERS PowerClass® COAXIAL SPEAKERS PowerClass® coaxial and component speakers also feature proprietary Precision Power™ industrial design. Construction details include state of the art materials such as ultra-rigid foamed polypropylene cones, and tweeters made by vapor depositing titanium on a non-resonant dome structure that’s suspended by a synthetic rubber surround to create smooth, extended high frequency response. These new speakers are visible – and audible – proof that state of the art doesn’t have to cost a fortune. POWERCLASS® SPEAKER FEATURES Deep draw steel baskets with proprietary PrecisionPower™ industrial design Ultra-rigid foamed polypropylene cones with conformally attached Santoprene surrounds 19mm vapor deposit titanium dome tweeters combine accuracy and efficiency Available in 5.25", 6.5", 5"x7", and 6"x9" coaxial models with built-in tweeter protection 5.25" and 6.5" component models with outboard passive crossovers Tweeters swivel for precise imaging and soundstage adjustment COMPONENT SPEAKERS Model PC 525C PC 570C PC 650C PC 690C PC 525S PC 650S Type: Coaxial Coaxial Coaxial Coaxial Component Component Size: 5.25" 5x7 6.5" 6x9 5.25" 6.5" Power Handling: 50 RMS/100 Peak 50 RMS/100 Peak 150 RMS/200 Peak 150 RMS/200 Peak 50 RMS/100 Peak 60 RMS/120 Peak Impedance: 4 Ohm 4 Ohm 4 Ohm 4 Ohm 4 Ohm 4 Ohm Freq. Resp.: 50Hz-100kHz 80Hz-20kHz 90Hz-20kHz 70Hz-20kHz 90Hz-20kHz 90Hz-20kHz Efficiency: 90dB (1M/2.83V) 91dB (1M/2.83V) 90dB (1M/2.83V) 91dB (1M/2.83V) 92dB (1M/2.83V) 92dB (1M/2.83V) Tweeter Description: 19mm Vapor Deposit Titanium 19mm Vapor Deposit Titanium 19mm Vapor Deposit Titanium 19mm Vapor Deposit Titanium 19mm Vapor Deposit Titanium 19mm Vapor Deposit Titanium Crossovers: Integrated 6dB w/protection Integrated 6dB w/protection Integrated 6dB w/protection Integrated 6dB w/protection Outboard 2-way 6/12dB w/protection Outboard 2-way 6/12dB w/protection Depth: 2-7/8" 2-7/8" 2-15/16" 3-7/16" 2-7/8" 2-15/16"