The ZM6SW is a 6.5″/165mm 2-Way Weatherproof Speaker, ideal for use both indoors and outdoors or installation on marine and off-road vehicles. Featuring a aluminium and polypropylene cone this robust 2-way speaker is capable of withstanding temperatures as low as -20 degrees C and as high as +85 degrees C. With an adjustable 20mm silk domed tweeter and Crossover with selectable tweeter level the ZM6SW is a fantastic speaker that offers excellent audio quality making sure you are truly the life of the party. The speakers PVC casing and mounting bracket are UV treated to prevent discolouring.TechnicalImpedance 8 ohm, amplifier impedance 4-8 ohm.6,5” Woofer with rubber surround and PP Cone25mm Voice coilTweeter 20 mm silk domeAdjustable Tweeter level on the backFrequency range 55 – 20.000 HzSensitivity 90 dB / 1W, 1mPower handling capacity 80 W RMS, 160 W maxThe crossover point is 4.8K.The tweeter switch damping is about 1-2 dB.IP65 ratingUV treated to protected against discolouring