The three way MPK 163.3 car audio speakers system is dedicated to those who want the best: the MP 70.3 midrange featuring Neodymium double magnet inside the coil produces an enthralling mid range, perfect to combine with the powerful mid-low of the MP 165.3 woofer as well as with the detailed high range of the MP25.3 tweeter. The 20 mm coil of the MP 70.3 maximizes the dynamics; the V-cone profile enhances off-axis dispersion and the Boundary Free Surround allows for a wider extension towards the low frequency range. The dedicated MPCX 3.3 crossover provides optimized crossover points to exploit the midrange remarkable extension using ultra-selected components. Features - High density flux ferrite magnet combined with very low carbon content iron plates, for low distortion at high power levels. Low mounting depth, acoustically transparent aluminium alloy basket with elegant diamond cutting and featuring the aluminium Hertz logo. Full protection metal mesh grill featuring the aluminium Hertz logo and attractive look mineral powder coated inner grill are included for several install combinations. 1mm pure copper wire low series resistance inductors, for low dissipation losses on the woofer section where high transient currents are demanded. Compact footprint design for easy installation, with top vent grille for efficient heat dissipation. Specifications - Power Handling - Peak W: 300 Power Handling - Continuous W: 150 Impedance Ω: 4 Frequency response Hz: 40 ÷ 22,5k Sensitivity dB SPL: 92 Voice coil Ø mm (in.): 25 (1) Woofer size mm (in.): 165 (6.5) Tweeter size mm (in.): 29 (1.14)