Hertz Audio 2 Pairs of X-690 UNO Series 6x9" 4-Way Coaxial Speakers - This bundle includes 2 pairs of Hertz UNO Series X-690 6x9" Four-Way Coaxial Speakers, a pry kit, and a Creative Audio coozy. For our fans seeking strong emotions who have a 6”x9” OEM setup, Hertz offers the X 690, a 4 way monster with a power handling of 340 W. The double 15 mm piezoelectric super-tweeter with PEI dome extends the frequency response above 20 kHz, maximizing the stereo image. Features - Double 15 mm piezoelectric super-tweeter with PEI dome to extend the frequency response above 20 kHz. 40 mm PEI tweeter with ferrite motor, for a brilliant reproduction of mid-high frequencies and compactness. Tweeter and super-tweeter faceplate optimized for exceptional off-axis performance. High stiffness metallic-grey finish pressed-paper cone with water-repellent treatment. Foam surround combining high sensitivity and deep bass response. Pure copper 25mm (1 in.) voice coil woofer for high dynamic power handling. High flux density 80mm (3.15 in.) ferrite magnet for a powerful undistorted sound. Easy-to-install DIN size basket protected by abrasion-resistant dust paint. Specifications - Power Handling - Peak W: 340 Power Handling - Continuous W: 85 Impedance Ω: 4 Frequency response Hz: 45 ÷ 22k Sensitivity dB SPL: 94 Woofer size mm (in.): 6 x 9 Tweeter size mm (in.): 40 (1.6) Supertweeter size mm (in.): 2 x 15 (0.6) Woofer Voice Coil Ø mm (in.): 25 (1) Tweeter voice coil Ø mm (in.): 20 (0.8)