Douk Audio T9 Vacuum Tube Phono Preamp Stereo Turntable Preamplifier With Headphone Output And Treble Bass Control For Mm/Mc Rec

Warm Tips 1. The Bias And Gain Of Two 6E2 Tubes Are Set Well Before Shipping, Please Pay Attention To The R/L Channel Markings On The Tubes, Don'T Insert Them Wrongly During Installation. 2. 3.5Mm Headphone Jack With Priority, Please Make Sure The Headphone Has Been Disconnected If You Want Rca Output. 3. Pluggable Tube Socket Design, Convenient To Be Replaced By 6K4, Ef93, 6Ba6, W727 Etc. To Enjoy Tube Sound Of Different Styles. 4. T9 Is A Preamp Not A Power Amplifier, Needed To Work With Amplifiers Or Active Speakers. Parameters Audio Input: Stereo Rca / Phono Mm(Mc) Audio Output: Stereo Rca / 3.5Mm Headphone Jack Headphone Impedance Range: 16-300O Headphone Output Power: 250Mw@32O 100Mw@64O 60Mw@128O Rca In: Input Level: 0.775V Rms Output Level: 1.5V Rms Input Impedance: 100K Ohm Snr: =106Db Frequency Response: 20Hz-20Khz (0.5Db) Phono In: Input Level: 0.005V Rms (Mm) / 0.0005V Rms (Mc) Output Level: 0.6V Rms Input Impedance: 47K Ohm (Mm) / 330Ohm (Mc) Snr: =80Db Frequency Response: Ref To Riaa 2Db Thd: =0.1% Tube: 2 6E2; 2 6A2 Treble&Bass: 10Db Backlight Color Adjustable: Green/Orange/Off Working Voltage: Dc 12V(=1A) Dimensions (W*D*H): 154*87*47Mm / 6.06*3.43*1.85In Package Dimensions(W*D*H): 210*190*100Mm / 8.27*7.48*3.94In Net Weight: 600G/1.32Lb Package Weight: 1.0Kg/2.20Lb Packing List 1*T9 Preamp 2*6E2 Tube 2*6A2 Tube 1*Dc12V Power Supply 1*Manual