The Heco Professional P4001 is a passive speaker designed for a variety of audio applications including studio monitoring, live sound reinforcement, and other professional audio environments. The P4001 features a frequency response that typically ranges from 40 Hz to 20 kHz, allowing for a wide range of sound reproduction suitable for detailed audio work. It is equipped with high-quality components, including a robust woofer for deep bass response and a precise tweeter that ensures clear high-frequency reproduction. The cabinet design is optimized for reduced resonance, contributing to better sound clarity and accuracy. Additionally, the speaker is usually housed in a durable enclosure that can withstand the rigors of professional use, making it a reliable choice for audio professionals. Common connections include standard speakon or binding posts, which ensure compatibility with different amplifiers and setups. The overall design focus is on delivering high performance and reliability in demanding audio situations.