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OldChen 300B Tube Amplifier HIFI EXQUIS Laochen Single-ended Class A Lamp Amp Bleutooth 5.0

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Customer ratings and reviews

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  • With Luxury Tube
  • With Standard Tube
  • With Bluetooth
  • Without Bluetooth

With Bluetooth: The amp comes with Bluetooth 5.0 module.
No Bluetooth: The amp does not have Bluetooth 5.0 functionality.
Silver/Black Luxury Tube option: The amplifier is provided with better PSVANE luxury tubes: 2x special customized cv181-SE preamp tubes + 1x PSVANE 274B rectifier (these better tubes can greatly improve sound quality).
Silver/Black Default Tube option: The amplifier is provided with the default Psvane 2x 6SN7GT preamp tube + 1x 5ug4 rectifier.


  • Oldchen, a significant high cost performance brand in the tube amplifier industry, has established a positive partnership with PSVANE. This collaboration allows Oldchen to incorporate the latest optimal tubes from PSVANE into their amplifiers. In the case of this specific amplifier, all tubes are newly manufactured by PSVANE, offering exceptional value and sufficient quality to create a warm tube sound.

  • Oldchen 300B tube amps are already one of the leaders in the world e-market.(HIFI EXQUIS)

  • This amplifier's development and marketing time has been over 10 years; it has become very mature and has received many improvement suggestions from hifi buyers, with many buyers praising it.

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Specification and Parameters:

  • Pre-amp tubes: 2 x 6SN7GT or CV181-SE (depend option)

  • Rectifier tube: 1 x 5U4G or 274B (depend option)

  • Power tubes: 2 x PSVANE made special customized 300B-SE, black plate

  • 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

  • Package weight: 21

  • Chassis Color: Black/Silver Version

  • Input voltage: costomize for 100v-120v  220v-240v / 50-60hz,  we send the right voltage version for you, we are familiar about it


  • PSVANE's special customizing of Aiqin 300B-SE offers better vocal and very fine sound effects, with similar quality to PSVANE 300B-UK.
  • The machine utilizes some very know special audio capacitors. and lll electronic components are of high-quality level.

  • Output transformer: 86*50, 0.35mm Z11 Japanese steel with OFC wires.

  • Power transformer: It also uses 0.35mm iron stack with OFC wires.

  • Gold-plated connections for all connections.

  • 3 input sources with switcher.

  • Free offer of tube protection grille.

  • For using Bluetooth, you need to turn the source input switch to "AUX," and then connect Bluetooth with your device; it will automatically connect. Please pay attention.

  • HIFI-EXQUIS has created a special English version user manual for this device; please ask us for the download link after placing your order.

Luxury tube version :






Default tubes version:




High quality handmade transformers:Ac22403bc174647bd9681ddddbdb125a2o.jpg


Glod plated tube seat:


Praises from customers:



By on 28 March 2017 (OldChen 300B Tube Amplifier HIFI EXQUIS Laochen Single-ended Class A Lamp Amp Bleutooth 5.0) :

Big power

I order this amp for fullrange speaker. Just tried to connet this amp to BMW 800D and SP100R2 VINTAGE. I was surprised that i heard the sound this amp drive BMW 800D and SP100R2 VINTAGE. This is just small(8W+8W) amp but this one have huge ability.