Product Code: HD-642 Price: Check Latest CDT Audio CDT Audio HD Series Component System    MODEL : HD-642 6 1/2", 4" 3-Way component set Mid: Cast 6.5" / Depth 2.75" Mid: Cast 4" / Depth 2.25" Crossover: HD-30 Mid-E.Q. 4/5th order Elliptic 24dB Tweeter: DRT-25 Extended Range 1" silk tweeter Power Handling: 230 watt RMS 100Hz high-pass Frequency Response: 60-20kHz Sensitivity: 92.3 dB Impedance: 4 Ohm Surface & Flush & Angled Tweeter Housings Want to Kick it up a notch? You Can Up-Grade This Model Click Here for More Information   Component Details-Here   Crossover: HD-30  -  Mid -E.Q. 4/5th order Elliptic 24dB This is a three-way crossover with the highest quality parts and high power handling. No protectors to limit power are used and all settings are fixed. The same transient-optimized 3.7kHz crossover is employed but ultra high quality polypropylene film capacitors are used. This compact powerful basic unit uses heavy-duty stacked iron core inductors. Tweeters: DRT-25S drt-25  1" Silk Dome Tweeter Cooled by ferrofluid Neodymium magnet Surface and flush mount mounts The DRT-25 Tweeters are also unique. They are a 25 mm (1") silk exended range dome design with a neodymium magnet and ferrofluid filled voice coil gap to give sound and power handling that typically requires a much larger* speaker.