例文
- Boston Acoustics has produced home loudspeakers such as the E, HD, VR-M, and Lynnfield Series, and on the mobile side Pro, Z, and SPZ reference component speakers.
- For example, the Rotel RB-990BX amplifier, used as the reference component for the receiver evaluations here, is rated at " 200 watts per channel into 8 ohms, from 20 to 20, 000 Hz, with no more than 0.03 percent total harmonic distortion ."