Willsenton R-800i 300B 805 tube Integrated Amplifier Single-ended Class A power testing before send

Amplifier: Willsenton R-800i 300B 805 tube Integrated Amplifier Single-ended Class A
This is a new item, never burn in it, if burn in it for 10 to 30 hours, will have a much nicer sound. Usually, burn in 300 hours to get the best sound.
https://www.china-hifi-audio.com/en/willsenton-tube-amplifier-c-77/willsenton-r-800i-300b-805-tube-integrated-amplifier-single-ended-class-a-power-p-2278

Speaker:
Speaker: SoundArtist SC8B 8 inch Coaxial speaker HiFi Bookshelf Loudspeakers
Burn in for 50 hours about, I guess.
https://www.china-hifi-audio.com/en/soundartist-amplifier-speaker-c-78/soundartist-sc8b-8-inch-coaxial-speaker-hifi-bookshelf-loudspeakers-pair-p-2281
Sound source: SoundArtist HB-M HiFi Audio Music Receiver Bluetooth 5.0 with wireless from a old Huawei phone.
https://www.amazon.com/dp/B088ZMC74Q
https://www.china-hifi-audio.com/en/soundartist-amplifier-speaker-c-78/soundartist-hbhifi-audio-music-receiver-bluetooth-5-0-new-streamer-p-2303
Ah, at locale, it has nice sound.
My microphone is not good enough, loss most of the bass, the bass is more at locale, but, at this Youtube, almost no bass, the Youtube have not correct sound.

Видео Willsenton R-800i 300B 805 tube Integrated Amplifier Single-ended Class A power testing before send канала Yong Lee China-hifi-Audio