The MB Quart QSD 216 car speaker is a two-way vehicle speaker ready to produce high and mid-range sounds via the tweeter and mid-range speaker. The MB Quart car speaker can supply up to 80 watts of power. As a non-powered speaker, the two-way car speaker relies on an external power source to create the high and mid-range sounds intended to come from this unit. The MB Quart car speaker has a 4-Ohm, dual-coil impedance and a sensitivity of 85.5 dB. The speaker is made with a polypropylene woofer and titanium tweeter. The unit is a non-enclosed speaker, meaning that it does not come preset in a speaker box. It must be set in a box as a standalone speaker or as part of a speaker set. The MB Quart car speaker uses a built-in passive crossover system. The MB Quart QSD 216 car speaker requires a minimum frequency response of 32 Hz and a maximum frequency response of 32 kHz. The two-way car speaker is part of the Q-line of car audio products from MB Quart.