T4 PLUS Audio 5654 Vacuum Tube Phono Stage Preamp for Home Turntables Headphone Amp w/VU Meter Stereo Audio Preamp for TV/MP3/Phone

Parameters. Brand: Douk Audio. Model: T4 PLUS. Audio input: MM phono/turntable 3.5mm AUX. Audio output: stereo L/R RCA 3.5mm headphone jack. Max output power of headphone jack: 150mW@32. Matched headphone impedance: 32-300. AUX IN. AUX input level: 0.775V. RCA max output level: 1.5V. Frequency response: 20Hz-20KHz ±0.3dB). S/N ratio: 110dB. THD: 0.2%. Phono IN. Phono input level: 0.005V. RCA max output level: 300mV MM 3V MC). Frequency response: conforms to RIAA characteristics ±3dB). S/N ratio: 71dB. THD: 0.8%. Working voltage: DC 12V. Dimensions(WDH): 50137146mm 1.975.395.75in. Package dimensions(WDH): 30023065mm 11.819.062.56in. Net weight: 640g1. 41lb. Package weight: 1000g2. 20lb. Features. T4 PLUS tube preamp meets more HiFi audio needs: MM MC phono input, support multiple input impedance switch 1K47022010047 2210, converts phono signal to line level signal, low-noise integrated circuits and high-quality components to ensure clear sound. 3.5mm AUX input, amplify the l