The MB Quart QL C 400 is a component car audio speaker system designed to deliver high-quality sound in automotive applications. This model features a durable design with weather-resistant materials, making it suitable for various conditions inside a vehicle. The speakers are engineered to provide a balanced sound profile, with clear highs and rich lows. Specifications include a peak power handling of approximately 400 watts and an RMS (root mean square) power handling of about 200 watts. The system typically comprises a 6.5-inch woofer and a 1-inch tweeter, ensuring an optimal listening experience with impressive sound clarity. With a frequency response range that usually spans from around 50 Hz to 20 kHz, it covers a wide spectrum of audio frequencies. The sensitivity rating is often around 90 dB, indicating that the speakers can produce a good level of sound without requiring excessive power. The QL C 400 may also come with a built-in crossover network to enhance audio performance by directing the appropriate frequency to each speaker component based on its capability.