S, high quality drivers and a decent amplifier. The m20 uses a response 3"driver and a 6"subwoofer in wood cabinets. Wood is much more effective dampening back wave transmission than plastic. The amplifier doesn't skimp on parts. The result is a surprising quality of sound for the price. The volume control is located on light cord that extends from the speaker making allowing you to make adjustments easily at any time. Amplifiers system Rated power 50w rms Frequency range 20hz-120hz Signal-to-noise
Filter type¡êo Professional active crossover filter Active crossover frequency 3.0khz Bass adjust +2/0/-2db(200hz) Mid range adjust 0/-2/-4db(500hz) Treble adjust +1/0/-1db(10khz) Signal-to-noise >94db Harmonic distortion 80hz - 20khz ¡¨¹1%(85db/1m) Input sensitivity 350mv Input impedance 12k|¸ Other parameter Finished Black piano lacquer finish / silver aluminium panel Dimension (w¡¨¢h¡¨¢d) 8.5"¡¨¢10.9"¡¨¢14.8" Net weight Main speaker:16.5 lbs vice speaker:15.9 lbs
Amplifiers System Rated Power 78W Signal-to-Noise >85dB Distortion THD
M20-5.1mkii Wer amplifier circuit, which consists of three components; front end input circuit with digital volume control, power control circuit, and six-channel post-stage power amplifier circuit. The result is a system with almost twice as much power handling as the previous revision with improved dynamic sound and deep powerful bass. Included in the revisions was also a convenient remote with digital volume control for easy operation. The m20-5.1mkii provides 8|¸¡¡¡§|1khz ) Frequency range 120hz-20khz Signal-to-noise >92db Distortion Thd
Overall shape, classical and elegance; separate power amplifier to provide good quality for output; in the high-density wooden cabinet materials, pure tone; 5 inch woofer, powerful. Peak power 380watt Speaker:5 inch+3 inch x 2 Output power :20w + 9w x2(rms) Frequency range : 55hz-18khz.
Simple styling, small and beautiful, volume keying, bump key surface design, easy to operate, speakers magnetically shielded, placed arbitrarily to listen, the best partner of mp3 and mp4 notebook computers. USB powered. Peak power 30watt Speaker:2 inch x 2 Output power:1.5w x 2(rms) Frequency range : 60hz-18khz.
Card Reader USB 1.1 specification compatibility Support for operation systems in Microsoft Windows Embeded USB cable inside High performance USB data transfer up to 12MB per second access to storage card USB bus powered, no external power needed & low power consumption Easy plug & play installation device True user-friendly design as Icon support (For win 98 & 2000) on screen for easy recognition of card slots Convenient and a fast data exchange (MP3, PDA, Digital Camera, data)
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