Those seeking the AU-320 are not simply looking to make their records louder.
They seek a way to transmit the delicate signal of an MC cartridge without loss, without color, and without noise —
a quiet and faithful messenger between the cartridge and the amplifier.
The Denon AU-320, introduced in the 1970s, is a passive step-up transformer designed for moving-coil (MC) cartridges.
With switchable step-up ratios of 1:10 and 1:36 and input impedance options of 3Ω and 40Ω,
it matches beautifully with a wide range of cartridges, including the legendary Denon DL-103 series.
Its completely passive design eliminates electrical noise and circuit distortion.
Each channel uses an independent high-precision transformer, ensuring perfect channel separation and balance.
The wide 10Hz–100kHz frequency response captures every subtle tone and spatial nuance with transparency and depth.
The result is a sound that is quiet, natural, and true to the recording —
a sound that doesn’t exaggerate, but reveals what’s really there in the grooves.
The AU-320 reflects a time when Japanese craftsmanship and audio philosophy valued integrity and precision.
Its solid metal chassis, mechanical selector switch, and hand-wound core transformers
are built for decades of faithful service.
Simplicity was the goal — and in that simplicity lies purity.
If you wish to hear the authentic voice of your MC cartridge,
the AU-320 is your entry point into true analog listening.
With no power, no circuits, and no coloration,
it restores the life and silence that define great vinyl playback.
Denon AU-320 — Pure. Honest. Beautifully simple.
| Shipping From | HTS Code (Reference) |
|---|---|
| Japan | 8504.31.4065 |