BOYUURANGE A20 Hi-Fi Intergrated Amplifier KT88 Tube Single-end Class A 4ND VU Meter

You should take about 30-100h time to operate the amp.RUN-IN to the amp gives it's best and stable sound.so during the first 100h use time the sound maybe is not the best,you can also use your own run-in method. Specifications of Boyuurange A20 tube amp: FTC Power Output Rating: 3W + 3W (20Hz - 20kHz, 8 ohms, THD+N: 1%) Output Power rating (not tested under the FTC standard): 8W * 2 (Ultra-linear connection) Frequency response: 20Hz-35KHz Harmonic distortion: 0.5%（1W/1kHz，Output Power rating <5%） Output Impedance: 4,8Ω Input Sensitivity: 750MV SNR: 89dB Input impedance: 100KΩ (three sets of input signal) Voltage amplification: Dawn 6J8PJ × 2. Power output tube: KT88 (Brand Shuguang or PSVANE to choose) × 2. Rectifier tube: 5Z3PA-T × 1 Dimensions (W × D × H): 366 × 300 (including knob) × 185mm Weight: about 16.5 kg (114 power transformers, export version) Gross weight: 20kg Power Supply Voltage: AC 110V-120V/50Hz-60Hz Features: With power tube current monitoring circuit, tube replacement upgrade ease. Medical grade 5Z3PA-T rectification. Imported 0.35 core output amplifier audio dedicated core, core stack thickness 86-50, A20 flux of 13,000 Output transformer potting techniques, ensure that the output of the amplifier stability and reliability Double chassis design，not easy deformed. Output amplifier with a new imported 0.35 core manufacturing, high-purity copper wire package enameled, layered segmentation, string and connection method Imported 0.35 thick core manufacturing power amplifiers Output amplifier with high-grade stretch amplifier housing cover. Power Transformers: new imported 0.35, stack thickness 60MM (114-60). Output amplifier core: core 0.35 new imported thick high silicon (86-50). Japanese production of A-L-P-S potentiometer. Chassis: mirror stainless steel chassis.

• KT88-98 power output.
• 6J8P-J pre-voltage amplification.
• The new power amplifier 0.35 cores do to ensure stable power supply.
• Output power, maximum output power of 8W+8W.
• Output amplifier uses no big loop feedback technology to ensure high sound reduction, powerful