Description: MB Quart Formula 1 inch 150 watt aluminum dome tweeter kit. Features: Compatible Vehicle Fitment: Universal Tweeters: Large aluminum dome tweeters deliver great sound and clear highs with increased reliability. External Component Crossover: External Passive Cauer topology Butterworth filter crossover for a smooth transition of frequencies from midrange/midbass to the tweeter element designed into a compact crossover housing that can be easily hidden in the installation. Tweeter Hardware: Mounting hardware included. Specifications: Speaker RMS Power Handling (watts): 50 Speaker Peak Power Handling (watts): 150 Speaker Impedance (ohms): 4 Speaker Frequency Response: 2kHz-30kHz Speaker Sensitivity: 91dB Speaker Crossover Slope: 12dB/Octave Speaker Mounting Diameter / Cut Out (in): 2.00 Speaker Outside Diameter (in): 2.00 Speaker Mounting Depth / Chassis Depth (in): 0.70 Speaker Size (in): 1 Item Weight (lbs): 0.4 Item Length (in): 2 Item Width (in): 2 Item Height (in): 0.70 Color: Black Type: Speaker Brand: MB Quart Series: Formula Category: Mobile Condition: New Warranty: 1 Year Compatible Vehicles: Universal