The Yamaha NS-225 is a passive bookshelf speaker designed for a variety of audio applications, including home music systems and more casual listening environments. The speaker features a two-way design, integrating a 8-inch woofer and a 2.5-inch cone midrange along with a 0.75-inch soft dome tweeter. This configuration allows for a wide frequency response, typically ranging from approximately 38 Hz to 20 kHz, enabling a balanced reproduction of both lows and highs. The NS-225 has an impedance of 8 ohms and can handle a power output of up to 100 watts, which affords it the capability to produce sound at higher volumes without distortion. The cabinet design is typically constructed from MDF, contributing to the overall sound quality by minimizing unwanted resonance. The speakers are often equipped with a rear-firing bass reflex port, enhancing low-frequency response and overall sound dynamics. Aesthetically, the Yamaha NS-225 often features a black vinyl finish, making it suitable for various interior decors. Additionally, the speaker includes a removable fabric grille, offering protection to the drivers while providing a discreet appearance. Overall, the Yamaha NS-225 is considered a solid option for those seeking reliable and pleasing sound reproduction in a compact form factor.