DOUK AUDIO T12 Headphone Amplifier Phono Preamplifier

The DOUK AUDIO T12 is a tube MM/MC phono preamplifier with an integrated headphone amplifier, designed for use with a turntable or various analog sources. It integrates two 6J5B-Q tubes operating with an anode voltage of 120 VDC, providing a warmer analog sound while maintaining a low level of distortion.

The T12 features an RCA Line In input for connecting a CD player, DAC, streamer, or any other analog source, as well as a PHONO input compatible with MM and MC cartridges with RIAA equalization. Its two RCA outputs allow easy connection to two amplification systems or active speaker systems, while a 3.5mm Jack headphone output supports headphones from 32 to 200Ω and delivers up to 350mW.

The tone control provides bass and treble adjustment of ±10 dB, with center-detent sliders allowing the neutral position to be easily restored. The T12 features a signal-to-noise ratio of ≥78 dB and total harmonic distortion of < 0.002% on the RCA input, with a maximum input level of 1.5Vrms and a maximum output level of 8Vrms at 600Ω.

Its compact 147 × 91 × 78mm enclosure combines genuine walnut wood cladding, visible tubes, and retro-style controls. It operates from a DC 12 V ≥1 A power supply via a 5.5/2.1 mm connector and features a setting memory function when powered off.