v40 Tube Amplifier

Connect Tablets and Smartphones by Bluetooth, CD Players and Turntables* by RCA Auxiliary and PC’s and Laptops using the micro USB.

The valves, supplied by JJ Electronics are renowned for being long-lasting and providing superb tonal qualities.

The v40 will deliver a warm rich sound from all your source devices.

*may require Phono amplifier

Please contact info@blueaura.co.uk to check availability

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Our v40 valve amplifier combines the latest in connectivity. Superior valves to provide the warm sound associated with tube amplifiers and a high-quality built-in DAC.

The inclusion of a Bluetooth receiver allows all your Bluetooth enabled devices to connect effortlessly with the v40.

v40 also benefits from the aptX Bluetooth codec. aptX has revolutionised the Bluetooth listening experience by reducing the bit rate without affecting the audio quality, resulting in CD quality sound.

Available in Black or Walnut.

Awarded 5 Stars by Hi-Fi World “outstanding”.
Read the full review here

Customer reviews can be found here.



The v40 Blackline has been designed to provide the best possible sonic performance.
The transformers are high-efficiency toroidal type, offering better heat dissipation and low leakage current resulting in very low distortion levels.

The use of European valves help to produce the warm, rich sound associated with valve amplifiers.

..here’s a small unit that combines tubes with the convenience of Bluetooth for hooking up to your mobile device. It’s different, but sounds superb“.  Hi-Fi World


The amplifier uses two audio processing valves along with a volume indicator valve. Connect all your source devices using the supplied cables or by Bluetooth.

v40 also benefits from a sub out feature allowing subwoofers to be connected to enrich the overall music experience.

Amplifier Type
Power Output
Class A/B
30w per channel
Freq. Response. 23Hz – 100 KHz +/- 2dB
Harmonic distortion 30W/0.7% , 1W/0.18%
Signal to noise ratio 88dB ‘A’-weighted / 66 dB FLAT
Input Impedance 50K Ω
Input Sensitivity 580mV +/- 5% @30W
Output impedance 4 / 8 Ω
Vacuum tube type 12AU7/ECC82 x 2 6e2 x 1
Audio Inputs RCA/USB micro B/3.5mm
mini jack/Bluetooth 4.0 inc. aptX
Audio Outputs Sub out (20Hz~850Hz)
Power Supply AC 230V/50Hz
Dimensions H: 148mm W: 264mm
D: 215 mm
Weight: 3.5Kg


Included in the box

  • v40 Valve Amplifier
  • Remote Control
  • Twin RCA cable
  • USB (micro) cable
  • Line out cable (3.5 Mini Jack)
  • Lint free dusting cloth

Product information sheets and instruction manuals can be found in the information centre.


Other Blue Aura products

v40 Tube Amplifier reviews