7 Premium RoundPart Number: MA-5107 Low magnetic field, mid power speakers ideal for high power stereos or mid power amplifiers. They feature powder coated aluminum grills and a power handling capability of 140 watts/pair.FeaturesLow magnetic field speakercoaxial type speakerAvailable in white onlySpecificationsFrequency Response: 50Hz to 20 KHz (2 Way)SPL: 88dBCone Size: 7 (178mm)Peak Power: 140W/pairContinuous Power: 70W RMS/pairMounting Depth: 3-⅞ (98mm)Speaker Impedance: 4 ohmOverall Diameter: 8-⅝ (218mm)Cutout Diameter: 7-⅛ (180mm)Weight: 3.45 lbs per Speaker