V 40 SE

The V 40 SE is a line level integrated amplifier with 2 x 40 W peak output power. He is a further development and direct descendant of the successful V 40 and V 50 amplifier models. His powerful, clear bass fundamentals and his captivating resolution in the high frequencies win much respect.

Available Colors: Silver or Black


His unique features lift the V 40 SE into the 21st Century, while his performance earned him the rare “Stereoplay Highlight” (issue 07-2009), a prestigious award bestowed by the German high-end audio magazine Stereoplay.

The V 40 SE output stage consists of two power pentodes (Type 6550 JJ) for each channel. Due to the BIAS Control and Monitoring System, the use of other pin-compatible output tubes is possible to match the amplifier to personal taste, or to benefit from new or improved tubes.

Like all OCTAVE amps the V 40 SE is based on the enhanced pentode configuration. This configuration ensures the absolute stability of the amplifier against the unstable impedance of the loudspeaker. Impedance mismatch is without consequence and the V 40 SE is stable down to a 2 ohms load.. An important contributor to this stability is the single impedance output transformer.

The V 40 SE is the perfect amp for speakers with an average efficiency rating. But not only is the low impedance capability an advantage, with his exceptional Signal-to-Noise ratio of –110dB / Full Power he is also an ideal partner for high efficiency loudspeakers.

Of course, the V 40 SE features the Power Management with the Soft-Start-Electronics, the Protection System, Eco Mode, BIAS Setting and Display, a Monitor/Record Output, the HT Bypass, the Pre-Out and a (Super) Black Box Connection. (See Technology for description)

General Facts

Basic model V 40 SE Line
Design Silver or Black
Tube Configuration 4 x 6550 JJ
Inputs 5 x RCA (including one home theatre bypass input)
Outputs 1 x RCA record output / 1 x regulated preamplifier output / 1 x loudspeaker output
Dimensions 408 x 159 x 490 mm (W x H x D)
Weight 18.0 kg


Full metal remote control Volume control
Eco mode Power saving mode
Bias control Bias current control
Adjustable Pre-Out Preamp output RCA
HT Bypass Bypass-function for multichannel/home cinema
Protection System Soft Start; Protection circuit for device and output tubes


Output power 40 W RMS, 50 W / 4 ohms
Frequency response 20 Hz – 70 kHz
Total harmonic distortion < 0.1 % @ 10 Watt into 4 ohms
Signal-to-noise ratio -100 dB / 40W
Amplification 38 dB


V 40 SE Review from Hi-Fi News 11/2016 - English version

"This is a brand and an amplifier that really should be heard. / The V 40 SE really gave you the raw emotional quality of Adele´s voice."

UK - Hi-Fi News - Steve Harris - November 2016

Overall rating from Hi-Fi News: HIGHLY COMMENDED

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V40 SE Review from stereophile 07/2014 - English version

Read the full Review from Art Dudley.

USA - stereophile - July 2014

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V 40 SE Review from stereoplay 07/2009 - German version

"The V 40 SE not only appeared more refined when it came to voices, it also handled the individual electric piano tones more delicately, with kid gloves so to speak - so that they were allowed to sparkle even more intensely and beautifully like little shining stars."

Germany - stereoplay - Johannes Maier - July 2009

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