6J8P 5U4G Fu50 Household retro tube Amplifiers Kit Diy Vu Meter Bluetooth 5.0 Small 300B Title Spartan F1 4Ω 8Ω 8W*2

6J8P5U4G Fu50 Household retro tube Amplifiers Kit Diy Vu Meter Bluetooth 5.0 Small 300B Title Spartan F1 4 8 8W2. Model. A: DIY kit with Bluetooth and UV. B: DIY kit with UV without Bluetooth. Model. A: DIY kit with Bluetooth and UV. B: DIY kit with UV without Bluetooth. Parameter: Power transformer: 9660185W watt super power transformer, brand new special grade 1. Output transformer: 6635 fever 3+2 winding method, new stock imported Nippon Steel 0.35 Z11 pieces2. Choke coil: 57254H brand new premium film1. Tube: 6J8P2 FU502 5U4G*1. Output power: 8W+8W. Frequency response: 20hz-20khz. Output impedance: 4 ohms and 8 ohms. Signal to noise ratio: 90db. Input sensitivity: 500mv-1000mv. Input impedance: 100k. Harmonic distortion: 1 1khz). Volume size: 320mm length 210mm depth 160 high