Magnet structure - Frequency response: 100Hz - 18kHz - Sensitivity: 90dB - Mounting Depth: 2.06. The item "BOSS CH5720 5x7 CHAOS 225W 2-WAY COAXIAL REAR STEREO SPEAKERS PAIR CAR AUDIO" is in sale since Monday, April 29, 2019. This item is in the category "Vehicle Parts & Accessories\Vehicle Electronics & GPS\Car Audio\Car Speakers & Speaker Systems". The seller is "elite_electronics_au" and is located in Sunshine West, VIC. This item can be shipped worldwide.