TRV-845SE

About the TRV-845SE

The Triode Corporation TRV-845SE is a pure triode single-ended tube integrated amplifier designed by Junichi Yamazaki, representing the top of the TRI range. It delivers 20 watts per channel in pure Class-A operation using 2 x 845 power tubes, driven by 2 x 2A3 tubes, with 6SN7 tubes in the input stage. The amplifier features a CR-type pre-main amplifier circuit with a total harmonic distortion of 0.1%. It has a frequency response of 10 Hz to 50 kHz (-1 dB), a signal-to-noise ratio of 89 dB, and an input sensitivity of 900 mV. Input impedance is 100K ohms. Inputs include 3 x RCA, 1 x XLR, and 1 x PRE-IN, with outputs selectable for 4, 8, or 16 ohms. The amplifier uses high-end Japanese KOA carbon resistors and German MUNDORF capacitors, with solid aluminum insulators. It includes a remote control for volume, input selection, and muting. The unit weighs approximately 38-40 kg and measures 460 mm (W) x 450 mm (D) x 260 mm (H). It is praised for its musicality, warmth, and detailed sound with a big, open, and layered presentation. The amplifier can be used as an integrated amp or with an external preamplifier via the PRE-IN input. It comes with original packaging, manual, remote control, and valve cover. The design emphasizes quality output transformers and careful tube bias adjustment via accessible dials and a VU meter for power tubes.