The model currently on sale is the New Model upgraded in December 2023. Features Pure hand-made, the whole machine is welded with scaffolding. Use a square power transformer specially developed for this machine. The output transformer uses two high quality wideband EI output transformers. The voltage amplification and boost stage uses a 6SN7 for power supply filtering. The voltage amplification stage and the push stage use two pairs of 6SL7 and 6SN7 tubes, respectively. The rear stage uses four KT88/6550/EL34 tubes for class AB push-pull power amplification. Triode and ultra-linear selection are available. External independent BIAS-ADJ current display header. External EL34/KT88 tube selection function, easy to replace different types of tubes, adding endless fun. Infrared full-featured remote control. Use thick silver plated signal leads. With pure post-level function, it can be connected to independent preamplifier signal input. Power on mute delay function (about 30 seconds). Select Japanese ALPS high-end motor potentiometer. Easy-to-install plug-in tube shield. Product parameters: FTC Power Output Rating: 16W + 16W (KT88 Triode) (8ohms,20HZ-20KHZ,THD 1%) FTC Power Output Rating: 30W + 30W (KT88 Ultra-Linear) (8ohms,20HZ-20KHZ,THD 1%) Output Power rating (not tested under the FTC standard): 23W+23W (RMS KT88 Triode) Output Power rating (not tested under the FTC standard): 45W+45W (RMS KT88 Ultra-Linear) Whole machine frequency response: 12Hz-40KHz (± 1.5dB) Harmonic distortion: 0.2% (1W/1kHz, rated output power less than 5%) Signal to noise ratio: 89Db (weighted by A) Input sensitivity: 320Mv (merged), 700Mv (Power stage) Input impedance: 100k Ω Input terminals: CD, AUX1, AUX2, PRE-IN Output impedance: 4 ohms, 8 ohms Headphone output impedance: 30 ohms to 300 ohms Power supply voltage:~120V ± 5% (50Hz) Whole machine volume: 400x390x200mm (WxDxH) Use vacuum tubes: 6SL7x2, 6SN7x3, KT88x4 Net weight: 26kg Power consumption of the whole machine: 280W
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