v40 Blackline

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

Matching PS40 loudspeakers are available separately. 

Awarded 5 Stars by Hi-Fi World   "outstanding"    Read the full review below 

Limited Edition 





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


A completely new product to the Blue Aura range, 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


ps40 - add the sonically matched ps40 loudspeakers

x-sub - add the Blue Aura subwoofer to enhance lower frequencies

Included in the box..

v40 Valve Amplifier
Remote Control
RCA - 3.5 cable
USB (mini) 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:http://www.blueaura.co.uk/information




Many thanks for the v40 amp which arrived with me promptly on Thursday, 6th July.

I am delighted with the physical appearance of the unit, which I think is very well finished, as well as being neat and elegant in design - a viewpoint which was also endorsed by my wife who, like many women, isn't overly enthused by the aesthetics of hi-fi boxes. I've now set up the v40, using my Lenovo Ideapad 510 laptop (which holds my CD collection, ripped using Windows Media Player at the best lossless level), which I use solely as a music server, along with my little Sonus Faber Toy speakers - the whole comprising a supplementary system which is situated in my lounge.

To date I have tested the system with a range of tracks - generally I listen to a wide range of vocal and instrumental music, but I'm not into rock - and my initial reaction is that sonically the v40 is a superb little amplifier, very detailed, and with that smoothness of valve reproduction. Overall, a lovely sound. 

Many thanks for all the information which you have supplied, and for a beautiful product - it certainly lives up to the review which I'd read some months ago in "HiFi Choice", and also the information which you have made available online.

Best wishes for your continued success

JB Nottingham

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