• T13 is a preamp with Stereo RCA and Phono(MM) inputs, compatible with most audio devices such as turntables, phones, computers, CD players, etc. to satisfy different demands. Stereo RCA output greatly improves the sound quality for amplifiers or active speakers, adds a 3.5mm headphone jack to easily drive all 16-300Ω headphones.
• Customized full-color VU meters, the color and brightness of backlight can be adjusted steplessly and freely; with built-in professional VU meter driver chip makes the pointer dancing more accurately, dynamically decorates the audio system and brings different enjoyment even in limited space.
• Better display and clean sound: AGC algorithm achieves ideal visual effects and avoids no display when input low signal and displays in full screen when input high; adds built-in 100K high-impedance input and power isolation circuits, no common ground noise even sharing the power with audio players, ensure the purity of sound source.
• Exquisite appearance and easy use: all aluminum CNC machined panel and gold-plated RCA terminals with longer service life, and durable adjustment knobs; powered by USB 5V, can be powered by power bank, phone charger, computer etc.,very suitable for home/office desktop audio system use to get better listening pleasure.

• Audio input: Stereo RCA / Phono MM
• Audio output: Stereo RCA / 3.5mm Headphone jack
• Input level:
  RCA: 0.775V RMS
  Phono: 0.005V RMS
• Frequency response:
  RCA: 20Hz-20KHz (±0.5dB)
  Phono: Ref to RIAA ±2dB
• Output level:
  RCA: 1.5V RMS
  Phono: 0.6V RMS
• S/N ratio:
  RCA: ≥106dB
  Phono: ≥80dB
• Headphone output power:
  250mW @32Ω
  100mW @64Ω
  60mW @128Ω
• Headphone impedance range: 16-300Ω
• THD: ≤0.1%
• VU meter color: multi-color for choice
• Backlight level adjustable: Support
• Save set-up: Support
• Working voltage: DC 5V(≥0.6A)
• Dimensions(W*D*): 178*118*55mm / 7*4.65*2.17in
• Package dimensions(W*D*H): 235*180*90mm / 9.25*7.09*3.54in
• Net weight: 730g/1.61lb
• Package weight: 1000g/2.20lb

User Manual of Douk Audio T13