3' Active Studio Monitor Pair. Active stereo monitor speaker pair. Speaker power: 50 watts. Bass and treble control. Equipped with a 3' woofer and a 1' tweeter. Line input (RCA). Frequency response: 80 - 20,000 Hz. The Vonyx SMN30B active monitors offer high sound quality and a great design at an affordable price. These monitors are made in high-density MDF enclosures specifically designed to reduce noise and resonance. These speakers are built in modern black with yellow speakers, making them a perfect fit for any home, studio, or environment. With the integrated amplifier, no separate amplifier is required. Featuring an analog amplifier with 2x 30 W, these speakers can fill a room with music. Above the master active speaker is a user-friendly control panel. Simply power the active speaker using the included power supply and connect the other passive speaker using the supplied speaker cable.