The ZX35C 3.5″ 89mm Midrange Speaker with HP/LP Filter. Sold as a pair these high-quality speakers are built to work with a 2-way or 3-way system. The ZX35C Midrange speakers can be paired with ZX1TC and ZX65C or the bigger 8” ZX8C woofers. These midrange speakers will handle 20W RMS and 40W Max. The ZX35C Cone is very different to ZX65C as the different Frequency needs different characters, so our audio engineers designed the ZX35C with a treated paper cone, to deliver the truest sounding voices and instruments. The ZX35C is also built with a rubber surround providing optimal performance in the car. The ZX35C speakers also come with a 6dB filter for high and low pass (350-4000Hz) when combined with the 3-way system.