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Denon AU-340

Audio Step Up Transformer

denon au-340 step up transformer
Denon AU-340


The Denon AU-340 is a high performance audio step-up transformer specially designed and presented for audio fans and music fans.

The model AU-340 steps up the output voltage of moving coil type cartridges while deriving the best from the cartridges.


Step-up ratio: 1:10 (40 ohms), 1:33 (3 ohms)

Output difference between channels: less than 0.5dB

Input impedance: 3 ohms, 40 ohms (with 4K ohms load on secondary winding)

Output impedance: 4K ohms

Load impedance: 50K ohms

Frequency response: 10Hz to 120kHz

Distortion: less than 0.05%

Dimensions: 155 x 70 x 215mm

Weight: 2.1kg


instruction/owners manual  English Deutsch Francais - abelb

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Denon Phono Amplifiers

Denon AU-340 / AU340 owners manual, service manuals and schematics are for reference only and the Vinyl Engine bears no responsibility for errors or other inaccuracies. The PDF files are provided under strict licence. Reproduction without prior permission or for financial gain is strictly prohibited. This website is not affiliated with or sponsored by Denon.