Laochen 300B Tube Amplifier HIFI EXQUIS Single-ended Class A Handmade OldChen Sliver Amp

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New product

OldChen (Aiqin Tube Art)

Manufactuer "LaoChen" have 3 brands name: "Oldchen" , "LaoChen", "Aiqin" 

So for this product, we have some amplifier  maybe  come with "Oldchen" words on the front plate , and others come with "LaoChen"  , please pay attention,  

More details




  • With all tubes
  • Without tubes
  • With Bluetooth version
  • Without Bluetooth








  • Pre-amp tubes: 2 x 6SN7/6N8P/6H8C/CV181(depend option)
  • Rectifier tube: 1 x 5U4G/5Z3P/274B (depend option)
  • Power tubes: 2 x PSVANE made "special customize for Laochen 300B-SE" power tube 
  • Output power : 8Wx2,  
  • Power transformer Power: 150W
  • Frequency response: 15Hz-35KHz
  • Output Impedance: 4 ohm, 8 ohm
  • Total Harmonic Distortion: ≤ 1% (1kHz)
  • Input Impedance: 100K ohm
  • Input Sensitivity: 500mV--2000mV
  • SNR: 88db
  • Size (W × D × H): 370mm × 250mm × 220mm
  • Net weight: 16 kg
  • Tube protection grille 3kg
  • Chassis Color: Black Version 
  • Input voltage: costomize for 110-240V/50-60hz



  • PSVANE's speacial customize of Aiqin 300B-SE offer a better vocal and very fine sound effect, have a similary quality than PSVANE 300B-UK.
  • Using SPRAGUE,  TRW, CE, MALLORY special audio capacitors in the machine
  • Output transformer: 86*50, 0.35mm Z11 Japanese steel with OFC wires
  • Powoer transformer: It is also use 0.35mm steel with OFC wires
  • Gold plate connection for all connections
  • 3 inputs source with swither
  • Free offer tubes protection grille
  • All electronic component are high level quality
  • Aiqin's 300B tube amps are already one of leader of chinese market
  • AIQIN is well-known brand in china, this 300B tube amplifier is sold a few hundred per month. Since 2006, its EL34 series is already sold more 10milles copies.
  • She is made by the most famous Chinese brand AIQIN, and it's the China 's best-selling hifi tube amplifier!
  • This amps's development and marketing time has more than 10 years, it has been very mature, has received a lot of suggestions for improvement by hifi buyers, many buyers have been praised .



Inside view, the electronic components can be changed by manufacturer some similary quality components:





Good plug for tube seat:


HIFI EXQUIS use double package to ship this amplifier:


HIFI EXQUIS free offer you next tube protection grille(you don't need to purchase it): 

Upgrade tubes view: upgrade to 2x PSVANE CV181 TII preamp tube,  and 1x PSVANE 274B:

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