The Pioneer HPM-100 is a loudspeaker system that debuted in the 1970s, recognized for its robust design and impressive sound performance. It features a 12-inch woofer, a 5-inch midrange driver, and a 2-inch dome tweeter, providing an extended frequency response from 20 Hz to 20 kHz. The cabinet is constructed from high-quality materials, including a hard wood veneer finish, which not only enhances its aesthetic appeal but also contributes to better acoustics. The HPM-100 includes a unique rectangular-shaped port for enhanced bass response, allowing for deeper and more resonant low frequencies. The speaker can handle a power output of up to 100 watts RMS, making it suitable for a variety of audio setups. The design of the HPM-100 allows for easy integration with different types of amplifiers. Its sensitivity rating is around 90 dB, indicating that it can produce sound levels comparable to larger systems while requiring less power. Over the years, the HPM-100 has become a favorite among audio enthusiasts and has gained a cult following due to its distinct sound character and solid construction.