Detailed Description (¯`v´¯)   `*.¸.*´  .´  ´.` ^-^ Usounder F Professional Power Amplifier ( 5 models): F series adopt Crest Audio circuitry design, which can make this series with following key features: super power, perfect timbre, steady quality, high-fidelity. Symmetrical layout for weight distribution and operation. HIgh efficiency toroidal power transformer.  Suitable in audio torium, singing and dancing room, night club and other harsh conditions. Model: F12 8Ω Stereo Power 400W 4Ω Stereo Power 600W 8Ω Bridge Power 1200W Freq.Resp(+0/-0.31W/8) 20Hz-20KHz,-3dB@100KHz THD+N 450 95dB Input sensitivity 0.775V,1V,1.4V Input imped.(bal/unbal.) 20KΩ/10KΩ Protection overheat,short circuits,DC,limit and softstart,OutputRelay-Zero Current Switch, lntellectual Clip Limiter.70dB Gross Weight 19kg Dimensions 585MM×580MM×160MM `+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+ Model:F18 8Ω Stereo Power 550W 4Ω Stereo Power 825W 8Ω Bridge Power 1650W Freq.Resp(+0/-0.31W/8) 20Hz-20KHz,-3dB@100KHz THD+N 450 95dB Input sensitivity 0.775V,1V,1.4V Input imped.(bal/unbal.) 20KΩ/10KΩ Protection overheat,short circuits,DC,limit and softstart,OutputRelay-Zero Current Switch, lntellectual Clip Limiter.70dB Gross Weight 21kg Dimensions 585MM×580MM×160MM `+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+ Model:F24 8Ω Stereo Power 800W 4Ω Stereo Power 1200W 8Ω Bridge Power 2400W Freq.Resp(+0/-0.31W/8) 20Hz-20KHz(+0/-0.5dB) THD+N 400 95dB Input sensitivity 0.775V,1V,1.4V Input imped.(bal/unbal.) 20KΩ/10KΩ Protection overheat,short circuits,DC,limit and softstart,OutputRelay-Zero Current Switch, lntellectual Clip Limiter.70dB Gross Weight 31kg Dimensions 660MM×590MM×230MM  `+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+ Model: F32 8Ω Stereo Power 1000W 4Ω Stereo Power 1500W 8Ω Bridge Power 3000W Freq.Resp(+0/-0.31W/8) 20Hz-20KHz(+0/-0.5dB) THD+N 95dB Input sensitivity 0.775V,1V,1.4V Input imped.(bal/unbal.) 20KΩ/10KΩ Protection overheat,short circuits,DC,limit and softstart,OutputRelay-Zero Current Switch, lntellectual Clip Limiter.70dB Gross Weight 33.5kg Dimensions 660MM×590MM×230MM `+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+ Model: F 36 8Ω Stereo Power 1200W 4Ω Stereo Power 1800W 8Ω Bridge Power 3600W Freq.Resp(+0/-0.31W/8) 20Hz-20KHz(+0/-0.5dB) THD+N 400 95dB Input sensitivity 0.775V,1V,1.4V Input imped.(bal/unbal.) 20KΩ/10KΩ Protection overheat,short circuits,DC,limit and softstart,OutputRelay-Zero Current Switch, lntellectual Clip Limiter.70dB Gross Weight 34.5kg Dimensions 660MM×590MM×230MM Please feel free to contact us if you have any questions with our products.  Have a NICE day. ^-^ .=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.` .=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`+.=`  Usound Audio Equipment Manufactory In R&D The goal of Usound Audio is:  To creat a famous made in China brand in audio equipment industry ! 1 Over 13 years experience in this line. 2 With branches of Beijing Acoustics Of Building Company; Taiwan Usound Technology; Guangzhou Usound Building Acoustics Company; Shenzhen Usound Building Acoustics Company; Yin Yu Speaker Manufactory; Usound Professional Amplifier Manufactory. 3 With a professional R&D team. 4 Products include: Professional Power Amplifier; Karaoke Power Amplifier; Professional Loundspeaker; Professional Peripheral Equipment. In Production The motto of Usound Audio is:  To be creative, to be of high quality, to be humanistic ! 1 With the production of 5000 professional Amplifier and 3000 Speakers each month. 2 Have a HP 3562A advanced audio analyzer, Japan kikusui safety inspection meter, Italy technical desigh for intelligent life test line. 3 Have a professional quality control team  In Sales & After Sales  Usound Audio believe: We never fail to impress ! 1 Have agencies in China, Southest Asia, Europe, America, Austrilia and New Zealand. 2 After sales service guarantee. Contact Information Tel: 86-20-84669973 ∴°°  ..∴° M.P: 86-20-88459281 ° Fax.:86-20-61920639  ∴°·   \|//∴. °.· Add: 2/F Usound Audio Building Longmei P.Y.G.Z.ChinaPlease note that Usound Audio will always be by your side. ^-^