Note: the standard version and the Upgraded version only the tubes not same ， the other is same
1: The standard version of the electronic tube has been upgraded to use PSVANE gallbladder, 5U4G rectifier, 2 300B-SE power tubes, and 2 6SN7GT amplifiers.
2: Upgraded version: The front stage electronic tube adopts PSVANE CV181-SE, which is a high-end 6SN7 series bile duct specially customized. After improving the tube core, the sound characteristics are excellent; Rectifier tube PSVANE high-end imitation Xidian 274B electronic tube; The power transistor adopts PSVANE 300B-SE.
3: Bluetooth has been upgraded to 5.0 module for free, supporting aac, aptX, aptxLL, aptxHD. Friends who need it
You can directly place an order for the Bluetooth version.
Parameters:
▶ Preamp Tubes: 2*6H8C/2*PSVANE CV181-SE
▶ Power Tubes: 2*PSVANE 300B-SE
▶ Rectify Tube: 1*PSVANE 5U4G/1*PSVANE 274B
▶ Output Power: 9W*2
▶ Bluetooth: Qualcomm 5.0
▶ Frequency: 20Hz-25KHz
▶ THD: ＜1%(1kHz)
▶ SNR: 88dB
▶ Input Sensitivity: 500mV-2000mV
▶ Input Impedance: 100kΩ
▶ Output Impedance: 4-8Ω
▶ Size: 370*220*20mm
▶ Power: 110V/220V
▶ Weight: about 21Kg
Package:
▶ 1 * Oldchen 300B Amplifier
standard version tubes
Upgrade version tubes
buyers photos shown ，
