Hello i'm hoping to get response from a small group of folks on speakers -Infinity rs 1001s -with a Polysheric Tweeter I like. A replacement woofer at 5.25, with a drilled out cabinet from the 4 incher in there, sound nearly alike. I see $14.95 Polk and Klipsch 5.25", new woofers on eBay with features like one inch voice coils, inverted dustcaps and other similar features. Crossover on infinity's is 3500k and both ebay woofers go to 5k. What is out there that's right to have! Cabinets are Acoustic Suspension