M-Audio AV42, two-way desktop reference speaker, low-frequency driver: 4" diameter, polypropylene-Coated, with high-temperature voice coil, high-frequency driver: 1" diameter, silk cone tweeter, frequency response: 75 hz - 20 khz, crossover frequency: 2.7 khz, rms spl: 101.5 db @ 1 meter, signal-to-noise ratio: > 90 db (typical, a-weighted), input connectors: left and right rca line input, and 6,3mm jack aux input, polarity: positive signal at "+" input produces outward low-frequency cone displacement, dynamic power: 20 watts continuous, per channel into 4 ohms, input impedance: 10 kohms unbalanced, input sensitivity: 100 mv pink noise input produces 90 dba output spl at 1 meter with volume control at maximum, protection: rf interference, output current limiting, over temperature, turn on/off transient, subsonic filter, indicator: blue power led for aligning wave guide, power requirements: 100-120v/~50/60 hz, 220-240v/~50/60 hz; powered via detachable 2-conductor line cord, cabinet: vinyl-laminated mdf, dimensions: 148 x 195 x 213 mm, weight: ca. 4,3 kg (pair)